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// Copyright 2017 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <chrono>
#include <string>
#include <thread>
#include <vector>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "src/core/ext/filters/client_channel/backup_poller.h"
#include "src/proto/grpc/testing/xds/v3/fault.grpc.pb.h"
#include "src/proto/grpc/testing/xds/v3/router.grpc.pb.h"
#include "test/cpp/end2end/xds/xds_end2end_test_lib.h"
namespace grpc {
namespace testing {
namespace {
using std::chrono::system_clock;
using LdsTest = XdsEnd2endTest;
INSTANTIATE_TEST_SUITE_P(XdsTest, LdsTest, ::testing::Values(XdsTestType()),
&XdsTestType::Name);
// Testing just one example of an invalid resource here.
// Unit tests for XdsListenerResourceType have exhaustive tests for all
// of the invalid cases.
TEST_P(LdsTest, NacksInvalidListener) {
auto listener = default_listener_;
listener.clear_api_listener();
balancer_->ads_service()->SetLdsResource(listener);
const auto response_state = WaitForLdsNack(DEBUG_LOCATION);
ASSERT_TRUE(response_state.has_value()) << "timed out waiting for NACK";
EXPECT_THAT(
response_state->error_message,
::testing::HasSubstr("Listener has neither address nor ApiListener"));
}
// Tests that we go into TRANSIENT_FAILURE if the Listener is not an API
// listener.
TEST_P(LdsTest, NotAnApiListener) {
Listener listener = default_server_listener_;
listener.set_name(kServerName);
auto hcm = ServerHcmAccessor().Unpack(listener);
auto* rds = hcm.mutable_rds();
rds->set_route_config_name(kDefaultRouteConfigurationName);
rds->mutable_config_source()->mutable_self();
ServerHcmAccessor().Pack(hcm, &listener);
balancer_->ads_service()->SetLdsResource(listener);
// RPCs should fail.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::UNAVAILABLE,
absl::StrCat(kServerName, ": UNAVAILABLE: not an API listener"));
// We should have ACKed the LDS resource.
const auto deadline =
absl::Now() + (absl::Seconds(30) * grpc_test_slowdown_factor());
while (true) {
ASSERT_LT(absl::Now(), deadline) << "timed out waiting for LDS ACK";
auto response_state = balancer_->ads_service()->lds_response_state();
if (response_state.has_value()) {
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
break;
}
absl::SleepFor(absl::Seconds(1) * grpc_test_slowdown_factor());
}
}
class LdsDeletionTest : public XdsEnd2endTest {
protected:
void SetUp() override {} // Individual tests call InitClient().
};
INSTANTIATE_TEST_SUITE_P(XdsTest, LdsDeletionTest,
::testing::Values(XdsTestType()), &XdsTestType::Name);
// Tests that we go into TRANSIENT_FAILURE if the Listener is deleted.
TEST_P(LdsDeletionTest, ListenerDeleted) {
InitClient();
CreateAndStartBackends(1);
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends()}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// We need to wait for all backends to come online.
WaitForAllBackends(DEBUG_LOCATION);
// Unset LDS resource.
balancer_->ads_service()->UnsetResource(kLdsTypeUrl, kServerName);
// Wait for RPCs to start failing.
SendRpcsUntil(DEBUG_LOCATION, [](const RpcResult& result) {
if (result.status.ok()) return true; // Keep going.
EXPECT_EQ(result.status.error_code(), StatusCode::UNAVAILABLE);
EXPECT_EQ(result.status.error_message(),
absl::StrCat("empty address list: ", kServerName,
": xDS listener resource does not exist"));
return false;
});
// Make sure we ACK'ed the update.
auto response_state = balancer_->ads_service()->lds_response_state();
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
// Tests that we ignore Listener deletions if configured to do so.
TEST_P(LdsDeletionTest, ListenerDeletionIgnored) {
InitClient(BootstrapBuilder().SetIgnoreResourceDeletion());
CreateAndStartBackends(2);
// Bring up client pointing to backend 0 and wait for it to connect.
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
// Make sure we ACKed the LDS update.
auto response_state = balancer_->ads_service()->lds_response_state();
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Unset LDS resource and wait for client to ACK the update.
balancer_->ads_service()->UnsetResource(kLdsTypeUrl, kServerName);
const auto deadline =
absl::Now() + (absl::Seconds(30) * grpc_test_slowdown_factor());
while (true) {
ASSERT_LT(absl::Now(), deadline) << "timed out waiting for LDS ACK";
response_state = balancer_->ads_service()->lds_response_state();
if (response_state.has_value()) break;
absl::SleepFor(absl::Seconds(1) * grpc_test_slowdown_factor());
}
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Make sure we can still send RPCs.
CheckRpcSendOk(DEBUG_LOCATION);
// Now recreate the LDS resource pointing to a different CDS and EDS
// resource, pointing to backend 1, and make sure the client uses it.
const char* kNewClusterName = "new_cluster_name";
const char* kNewEdsResourceName = "new_eds_resource_name";
auto cluster = default_cluster_;
cluster.set_name(kNewClusterName);
cluster.mutable_eds_cluster_config()->set_service_name(kNewEdsResourceName);
balancer_->ads_service()->SetCdsResource(cluster);
args = EdsResourceArgs({{"locality0", CreateEndpointsForBackends(1, 2)}});
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args, kNewEdsResourceName));
RouteConfiguration new_route_config = default_route_config_;
new_route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_route()
->set_cluster(kNewClusterName);
SetListenerAndRouteConfiguration(balancer_.get(), default_listener_,
new_route_config);
// Wait for client to start using backend 1.
WaitForAllBackends(DEBUG_LOCATION, 1, 2);
}
using LdsRdsInteractionTest = XdsEnd2endTest;
INSTANTIATE_TEST_SUITE_P(
XdsTest, LdsRdsInteractionTest,
::testing::Values(XdsTestType().set_enable_rds_testing()),
&XdsTestType::Name);
TEST_P(LdsRdsInteractionTest, SwitchFromRdsToInlineRouteConfig) {
CreateAndStartBackends(2);
// Bring up client pointing to backend 0 and wait for it to connect.
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
WaitForBackend(DEBUG_LOCATION, 0);
// RDS should have been ACKed.
auto response_state = balancer_->ads_service()->rds_response_state();
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Now recreate the LDS resource with an inline route config pointing to a
// different CDS and EDS resource, pointing to backend 1, and make sure
// the client uses it.
const char* kNewClusterName = "new_cluster_name";
const char* kNewEdsResourceName = "new_eds_resource_name";
auto cluster = default_cluster_;
cluster.set_name(kNewClusterName);
cluster.mutable_eds_cluster_config()->set_service_name(kNewEdsResourceName);
balancer_->ads_service()->SetCdsResource(cluster);
args = EdsResourceArgs({{"locality0", CreateEndpointsForBackends(1, 2)}});
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args, kNewEdsResourceName));
RouteConfiguration new_route_config = default_route_config_;
new_route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_route()
->set_cluster(kNewClusterName);
Listener listener = default_listener_;
HttpConnectionManager http_connection_manager =
ClientHcmAccessor().Unpack(listener);
*http_connection_manager.mutable_route_config() = new_route_config;
ClientHcmAccessor().Pack(http_connection_manager, &listener);
balancer_->ads_service()->SetLdsResource(listener);
// Wait for client to start using backend 1.
WaitForBackend(DEBUG_LOCATION, 1);
// Send an update to the original RDS resource, which the client
// should no longer be subscribed to. We need this RouteConfig to be
// different than the original one so that the update does not get
// squelched by XdsClient, so we add a second domain to the vhost that
// will not actually be used.
new_route_config = default_route_config_;
new_route_config.mutable_virtual_hosts(0)->add_domains("foo.example.com");
balancer_->ads_service()->SetRdsResource(new_route_config);
// Wait for RDS ACK to know that the client saw the change.
// TODO(roth): The client does not actually ACK here, it just sends an
// unsubscription request, but our fake xDS server is incorrectly treating
// that as an ACK. When we have time, fix the behavior of the fake
// xDS server, and then change this test to ensure that there is no RDS
// ACK within the 30-second timeout period.
const auto deadline =
absl::Now() + (absl::Seconds(30) * grpc_test_slowdown_factor());
while (true) {
ASSERT_LT(absl::Now(), deadline) << "timed out waiting for RDS ACK";
response_state = balancer_->ads_service()->rds_response_state();
if (response_state.has_value()) break;
absl::SleepFor(absl::Seconds(1) * grpc_test_slowdown_factor());
}
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Make sure RPCs are still going to backend 1. This shows that the
// client did not replace its route config with the one from the RDS
// resource that it should no longer be using.
ResetBackendCounters();
CheckRpcSendOk(DEBUG_LOCATION);
EXPECT_EQ(0, backends_[0]->backend_service()->request_count());
EXPECT_EQ(1, backends_[1]->backend_service()->request_count());
}
TEST_P(LdsRdsInteractionTest, SwitchFromInlineRouteConfigToRds) {
CreateAndStartBackends(2);
// Create an LDS resource with an inline RouteConfig pointing to a
// different CDS and EDS resource, sending traffic to backend 0.
const char* kNewClusterName = "new_cluster_name";
const char* kNewEdsResourceName = "new_eds_resource_name";
auto cluster = default_cluster_;
cluster.set_name(kNewClusterName);
cluster.mutable_eds_cluster_config()->set_service_name(kNewEdsResourceName);
balancer_->ads_service()->SetCdsResource(cluster);
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args, kNewEdsResourceName));
RouteConfiguration route_config = default_route_config_;
route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_route()
->set_cluster(kNewClusterName);
Listener listener = default_listener_;
HttpConnectionManager http_connection_manager =
ClientHcmAccessor().Unpack(listener);
*http_connection_manager.mutable_route_config() = route_config;
ClientHcmAccessor().Pack(http_connection_manager, &listener);
balancer_->ads_service()->SetLdsResource(listener);
// Start the client and make sure traffic goes to backend 0.
WaitForBackend(DEBUG_LOCATION, 0);
// RDS should not have been ACKed, because the RouteConfig was inlined.
ASSERT_FALSE(balancer_->ads_service()->rds_response_state().has_value());
// Change the LDS resource to point to an RDS resource. The LDS resource
// configures the fault injection filter with a config that fails all RPCs.
// However, the RDS resource has a typed_per_filter_config override that
// disables the fault injection filter. The RDS resource points to a
// new cluster that sends traffic to backend 1.
args = EdsResourceArgs({{"locality0", CreateEndpointsForBackends(1, 2)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
route_config = default_route_config_;
auto* config_map = route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_typed_per_filter_config();
(*config_map)["envoy.fault"].PackFrom(
envoy::extensions::filters::http::fault::v3::HTTPFault());
envoy::extensions::filters::http::fault::v3::HTTPFault http_fault;
auto* abort_percentage = http_fault.mutable_abort()->mutable_percentage();
abort_percentage->set_numerator(100);
abort_percentage->set_denominator(abort_percentage->HUNDRED);
http_fault.mutable_abort()->set_grpc_status(
static_cast<uint32_t>(StatusCode::ABORTED));
listener = default_listener_;
http_connection_manager = ClientHcmAccessor().Unpack(listener);
*http_connection_manager.add_http_filters() =
http_connection_manager.http_filters(0);
auto* filter = http_connection_manager.mutable_http_filters(0);
filter->set_name("envoy.fault");
filter->mutable_typed_config()->PackFrom(http_fault);
ClientHcmAccessor().Pack(http_connection_manager, &listener);
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
route_config);
// Wait for traffic to switch to backend 1. There should be no RPC
// failures here; if there are, that indicates that the client started
// using the new LDS resource before it saw the new RDS resource.
WaitForBackend(DEBUG_LOCATION, 1);
}
TEST_P(LdsRdsInteractionTest, HcmConfigUpdatedWithoutRdsChange) {
CreateAndStartBackends(1);
// Bring up client pointing to backend 0 and wait for it to connect.
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
WaitForBackend(DEBUG_LOCATION, 0);
// LDS should have been ACKed.
auto response_state = balancer_->ads_service()->lds_response_state();
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Now update the LDS resource to add the fault injection filter with
// a config that fails all RPCs.
envoy::extensions::filters::http::fault::v3::HTTPFault http_fault;
auto* abort_percentage = http_fault.mutable_abort()->mutable_percentage();
abort_percentage->set_numerator(100);
abort_percentage->set_denominator(abort_percentage->HUNDRED);
http_fault.mutable_abort()->set_grpc_status(
static_cast<uint32_t>(StatusCode::ABORTED));
Listener listener = default_listener_;
HttpConnectionManager http_connection_manager =
ClientHcmAccessor().Unpack(listener);
*http_connection_manager.add_http_filters() =
http_connection_manager.http_filters(0);
auto* filter = http_connection_manager.mutable_http_filters(0);
filter->set_name("envoy.fault");
filter->mutable_typed_config()->PackFrom(http_fault);
ClientHcmAccessor().Pack(http_connection_manager, &listener);
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
default_route_config_);
// Wait for the LDS update to be ACKed.
const auto deadline =
absl::Now() + (absl::Seconds(30) * grpc_test_slowdown_factor());
while (true) {
ASSERT_LT(absl::Now(), deadline) << "timed out waiting for LDS ACK";
response_state = balancer_->ads_service()->lds_response_state();
if (response_state.has_value()) break;
absl::SleepFor(absl::Seconds(1) * grpc_test_slowdown_factor());
}
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
// Now RPCs should fail with ABORTED status.
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::ABORTED, "Fault injected");
}
TEST_P(LdsRdsInteractionTest, LdsUpdateChangesHcmConfigAndRdsResourceName) {
CreateAndStartBackends(2);
// Bring up client pointing to backend 0 and wait for it to connect.
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
WaitForBackend(DEBUG_LOCATION, 0);
// Change the LDS resource to point to an RDS resource. The LDS resource
// configures the fault injection filter with a config that fails all RPCs.
// However, the RDS resource has a typed_per_filter_config override that
// disables the fault injection filter. The RDS resource points to a
// new cluster that sends traffic to backend 1.
const char* kNewClusterName = "new_cluster_name";
const char* kNewEdsResourceName = "new_eds_resource_name";
auto cluster = default_cluster_;
cluster.set_name(kNewClusterName);
cluster.mutable_eds_cluster_config()->set_service_name(kNewEdsResourceName);
balancer_->ads_service()->SetCdsResource(cluster);
args = EdsResourceArgs({{"locality0", CreateEndpointsForBackends(1, 2)}});
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args, kNewEdsResourceName));
RouteConfiguration route_config = default_route_config_;
route_config.set_name("new_route_config");
route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_route()
->set_cluster(kNewClusterName);
auto* config_map = route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_typed_per_filter_config();
(*config_map)["envoy.fault"].PackFrom(
envoy::extensions::filters::http::fault::v3::HTTPFault());
envoy::extensions::filters::http::fault::v3::HTTPFault http_fault;
auto* abort_percentage = http_fault.mutable_abort()->mutable_percentage();
abort_percentage->set_numerator(100);
abort_percentage->set_denominator(abort_percentage->HUNDRED);
http_fault.mutable_abort()->set_grpc_status(
static_cast<uint32_t>(StatusCode::ABORTED));
Listener listener = default_listener_;
HttpConnectionManager http_connection_manager =
ClientHcmAccessor().Unpack(listener);
*http_connection_manager.add_http_filters() =
http_connection_manager.http_filters(0);
auto* filter = http_connection_manager.mutable_http_filters(0);
filter->set_name("envoy.fault");
filter->mutable_typed_config()->PackFrom(http_fault);
ClientHcmAccessor().Pack(http_connection_manager, &listener);
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
route_config);
// Wait for traffic to switch to backend 1. There should be no RPC
// failures here; if there are, that indicates that the client started
// using the new LDS resource before it saw the new RDS resource.
WaitForBackend(DEBUG_LOCATION, 1);
}
using LdsRdsTest = XdsEnd2endTest;
// Test with and without RDS.
INSTANTIATE_TEST_SUITE_P(
XdsTest, LdsRdsTest,
::testing::Values(XdsTestType(), XdsTestType().set_enable_rds_testing()),
&XdsTestType::Name);
MATCHER_P2(AdjustedClockInRange, t1, t2, "equals time") {
gpr_cycle_counter cycle_now = gpr_get_cycle_counter();
grpc_core::Timestamp cycle_time =
grpc_core::Timestamp::FromCycleCounterRoundDown(cycle_now);
grpc_core::Timestamp time_spec =
grpc_core::Timestamp::FromTimespecRoundDown(gpr_now(GPR_CLOCK_MONOTONIC));
grpc_core::Timestamp now = arg + (time_spec - cycle_time);
bool ok = true;
ok &= ::testing::ExplainMatchResult(::testing::Ge(t1), now, result_listener);
ok &= ::testing::ExplainMatchResult(::testing::Lt(t2), now, result_listener);
return ok;
}
// Tests that LDS client ACKs but fails if matching domain can't be found in
// the LDS response.
TEST_P(LdsRdsTest, NoMatchedDomain) {
RouteConfiguration route_config = default_route_config_;
route_config.mutable_virtual_hosts(0)->clear_domains();
route_config.mutable_virtual_hosts(0)->add_domains("unmatched_domain");
SetRouteConfiguration(balancer_.get(), route_config);
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::UNAVAILABLE,
absl::StrCat(
(GetParam().enable_rds_testing() ? kDefaultRouteConfigurationName
: kServerName),
": UNAVAILABLE: could not find VirtualHost for ", kServerName,
" in RouteConfiguration"));
// Do a bit of polling, to allow the ACK to get to the ADS server.
channel_->WaitForConnected(grpc_timeout_milliseconds_to_deadline(100));
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
// Tests that LDS client should choose the virtual host with matching domain
// if multiple virtual hosts exist in the LDS response.
TEST_P(LdsRdsTest, ChooseMatchedDomain) {
RouteConfiguration route_config = default_route_config_;
*(route_config.add_virtual_hosts()) = route_config.virtual_hosts(0);
route_config.mutable_virtual_hosts(0)->clear_domains();
route_config.mutable_virtual_hosts(0)->add_domains("unmatched_domain");
SetRouteConfiguration(balancer_.get(), route_config);
(void)SendRpc();
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
// Tests that LDS client should choose the last route in the virtual host if
// multiple routes exist in the LDS response.
TEST_P(LdsRdsTest, ChooseLastRoute) {
RouteConfiguration route_config = default_route_config_;
*(route_config.mutable_virtual_hosts(0)->add_routes()) =
route_config.virtual_hosts(0).routes(0);
route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_route()
->mutable_cluster_header();
SetRouteConfiguration(balancer_.get(), route_config);
(void)SendRpc();
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, NoMatchingRoute) {
RouteConfiguration route_config = default_route_config_;
route_config.mutable_virtual_hosts(0)
->mutable_routes(0)
->mutable_match()
->set_prefix("/unknown/method");
SetRouteConfiguration(balancer_.get(), route_config);
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::UNAVAILABLE,
"No matching route found in xDS route config");
// Do a bit of polling, to allow the ACK to get to the ADS server.
channel_->WaitForConnected(grpc_timeout_milliseconds_to_deadline(100));
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, EmptyRouteList) {
RouteConfiguration route_config = default_route_config_;
route_config.mutable_virtual_hosts(0)->clear_routes();
SetRouteConfiguration(balancer_.get(), route_config);
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::UNAVAILABLE,
"No matching route found in xDS route config");
// Do a bit of polling, to allow the ACK to get to the ADS server.
channel_->WaitForConnected(grpc_timeout_milliseconds_to_deadline(100));
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
// Testing just one example of an invalid resource here.
// Unit tests for XdsRouteConfigResourceType have exhaustive tests for all
// of the invalid cases.
TEST_P(LdsRdsTest, NacksInvalidRouteConfig) {
RouteConfiguration route_config = default_route_config_;
route_config.mutable_virtual_hosts(0)->mutable_routes(0)->clear_match();
SetRouteConfiguration(balancer_.get(), route_config);
const auto response_state = WaitForRdsNack(DEBUG_LOCATION);
ASSERT_TRUE(response_state.has_value()) << "timed out waiting for NACK";
EXPECT_EQ(
response_state->error_message,
absl::StrCat(
"xDS response validation errors: [resource index 0: ",
GetParam().enable_rds_testing()
? "route_config_name: INVALID_ARGUMENT: "
"errors validating RouteConfiguration resource: ["
"field:"
: "server.example.com: INVALID_ARGUMENT: "
"errors validating ApiListener: ["
"field:api_listener.api_listener.value["
"envoy.extensions.filters.network.http_connection_manager.v3"
".HttpConnectionManager].route_config.",
"virtual_hosts[0].routes[0].match "
"error:field not present]]"));
}
// Tests that LDS client should fail RPCs with UNAVAILABLE status code if the
// matching route has an action other than RouteAction.
TEST_P(LdsRdsTest, MatchingRouteHasNoRouteAction) {
RouteConfiguration route_config = default_route_config_;
// Set a route with an inappropriate route action
auto* vhost = route_config.mutable_virtual_hosts(0);
vhost->mutable_routes(0)->mutable_redirect();
// Add another route to make sure that the resolver code actually tries to
// match to a route instead of using a shorthand logic to error out.
auto* route = vhost->add_routes();
route->mutable_match()->set_prefix("");
route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::UNAVAILABLE,
"Matching route has inappropriate action");
}
// Tests that LDS client should choose the default route (with no matching
// specified) after unable to find a match with previous routes.
TEST_P(LdsRdsTest, XdsRoutingPathMatching) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEcho1Rpcs = 10;
const size_t kNumEcho2Rpcs = 20;
const size_t kNumEchoRpcs = 30;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 2)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_path("/grpc.testing.EchoTest1Service/Echo1");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_path("/grpc.testing.EchoTest2Service/Echo2");
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto* route3 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route3->mutable_match()->set_path("/grpc.testing.EchoTest3Service/Echo3");
route3->mutable_route()->set_cluster(kDefaultClusterName);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 2, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_timeout_ms(5000));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_wait_for_ready(true));
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_wait_for_ready(true));
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho2Rpcs,
RpcOptions()
.set_rpc_service(SERVICE_ECHO2)
.set_rpc_method(METHOD_ECHO2)
.set_wait_for_ready(true));
// Make sure RPCs all go to the correct backend.
for (size_t i = 0; i < 2; ++i) {
EXPECT_EQ(kNumEchoRpcs / 2,
backends_[i]->backend_service()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service2()->request_count());
}
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[2]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service2()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
EXPECT_EQ(kNumEcho2Rpcs, backends_[3]->backend_service2()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingPathMatchingCaseInsensitive) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEcho1Rpcs = 10;
const size_t kNumEchoRpcs = 30;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
// First route will not match, since it's case-sensitive.
// Second route will match with same path.
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_path("/GrPc.TeStInG.EcHoTeSt1SErViCe/EcHo1");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_path("/GrPc.TeStInG.EcHoTeSt1SErViCe/EcHo1");
route2->mutable_match()->mutable_case_sensitive()->set_value(false);
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_wait_for_ready(true));
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_wait_for_ready(true));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[2]->backend_service1()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingPrefixMatching) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEcho1Rpcs = 10;
const size_t kNumEcho2Rpcs = 20;
const size_t kNumEchoRpcs = 30;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 2)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_prefix("/grpc.testing.EchoTest2Service/");
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 2);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_wait_for_ready(true));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO1).set_wait_for_ready(true));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho2Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO2).set_wait_for_ready(true));
// Make sure RPCs all go to the correct backend.
for (size_t i = 0; i < 2; ++i) {
EXPECT_EQ(kNumEchoRpcs / 2,
backends_[i]->backend_service()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service2()->request_count());
}
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[2]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service2()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
EXPECT_EQ(kNumEcho2Rpcs, backends_[3]->backend_service2()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingPrefixMatchingCaseInsensitive) {
CreateAndStartBackends(3);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEcho1Rpcs = 10;
const size_t kNumEchoRpcs = 30;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
// First route will not match, since it's case-sensitive.
// Second route will match with same path.
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/GrPc.TeStInG.EcHoTeSt1SErViCe");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_prefix("/GrPc.TeStInG.EcHoTeSt1SErViCe");
route2->mutable_match()->mutable_case_sensitive()->set_value(false);
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_wait_for_ready(true));
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_wait_for_ready(true));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[2]->backend_service1()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingPathRegexMatching) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEcho1Rpcs = 10;
const size_t kNumEcho2Rpcs = 20;
const size_t kNumEchoRpcs = 30;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 2)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
// Will match "/grpc.testing.EchoTest1Service/"
route1->mutable_match()->mutable_safe_regex()->set_regex(".*1.*");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
// Will match "/grpc.testing.EchoTest2Service/"
route2->mutable_match()->mutable_safe_regex()->set_regex(".*2.*");
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 2);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_wait_for_ready(true));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO1).set_wait_for_ready(true));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho2Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO2).set_wait_for_ready(true));
// Make sure RPCs all go to the correct backend.
for (size_t i = 0; i < 2; ++i) {
EXPECT_EQ(kNumEchoRpcs / 2,
backends_[i]->backend_service()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service2()->request_count());
}
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[2]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service2()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
EXPECT_EQ(kNumEcho2Rpcs, backends_[3]->backend_service2()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingWeightedCluster) {
CreateAndStartBackends(3);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const char* kNotUsedClusterName = "not_used_cluster";
const size_t kNumEchoRpcs = 10; // RPCs that will go to a fixed backend.
const size_t kWeight75 = 75;
const size_t kWeight25 = 25;
const double kErrorTolerance = 0.05;
const double kWeight75Percent = static_cast<double>(kWeight75) / 100;
const double kWeight25Percent = static_cast<double>(kWeight25) / 100;
const size_t kNumEcho1Rpcs =
ComputeIdealNumRpcs(kWeight75Percent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* weighted_cluster1 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster1->set_name(kNewCluster1Name);
weighted_cluster1->mutable_weight()->set_value(kWeight75);
auto* weighted_cluster2 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster2->set_name(kNewCluster2Name);
weighted_cluster2->mutable_weight()->set_value(kWeight25);
// Cluster with weight 0 will not be used.
auto* weighted_cluster3 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster3->set_name(kNotUsedClusterName);
weighted_cluster3->mutable_weight()->set_value(0);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
WaitForAllBackends(DEBUG_LOCATION, 1, 3, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO1));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
const int weight_75_request_count =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
const int weight_25_request_count =
backends_[2]->backend_service1()->request_count();
gpr_log(GPR_INFO, "target_75 received %d rpcs and target_25 received %d rpcs",
weight_75_request_count, weight_25_request_count);
EXPECT_THAT(static_cast<double>(weight_75_request_count) / kNumEcho1Rpcs,
::testing::DoubleNear(kWeight75Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight_25_request_count) / kNumEcho1Rpcs,
::testing::DoubleNear(kWeight25Percent, kErrorTolerance));
}
TEST_P(LdsRdsTest, XdsRoutingWeightedClusterNoIntegerOverflow) {
CreateAndStartBackends(3);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kNumEchoRpcs = 10; // RPCs that will go to a fixed backend.
const uint32_t kWeight1 = std::numeric_limits<uint32_t>::max() / 3;
const uint32_t kWeight2 = std::numeric_limits<uint32_t>::max() - kWeight1;
const double kErrorTolerance = 0.05;
const double kWeight1Percent =
static_cast<double>(kWeight1) / std::numeric_limits<uint32_t>::max();
const double kWeight2Percent =
static_cast<double>(kWeight2) / std::numeric_limits<uint32_t>::max();
const size_t kNumEcho1Rpcs =
ComputeIdealNumRpcs(kWeight2Percent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* weighted_cluster1 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster1->set_name(kNewCluster1Name);
weighted_cluster1->mutable_weight()->set_value(kWeight1);
auto* weighted_cluster2 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster2->set_name(kNewCluster2Name);
weighted_cluster2->mutable_weight()->set_value(kWeight2);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
WaitForAllBackends(DEBUG_LOCATION, 1, 3, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions().set_rpc_service(SERVICE_ECHO1));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
const int weight1_request_count =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
const int weight2_request_count =
backends_[2]->backend_service1()->request_count();
gpr_log(GPR_INFO, "target1 received %d rpcs and target2 received %d rpcs",
weight1_request_count, weight2_request_count);
EXPECT_THAT(static_cast<double>(weight1_request_count) / kNumEcho1Rpcs,
::testing::DoubleNear(kWeight1Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight2_request_count) / kNumEcho1Rpcs,
::testing::DoubleNear(kWeight2Percent, kErrorTolerance));
}
TEST_P(LdsRdsTest, RouteActionWeightedTargetDefaultRoute) {
CreateAndStartBackends(3);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const size_t kWeight75 = 75;
const size_t kWeight25 = 25;
const double kErrorTolerance = 0.05;
const double kWeight75Percent = static_cast<double>(kWeight75) / 100;
const double kWeight25Percent = static_cast<double>(kWeight25) / 100;
const size_t kNumEchoRpcs =
ComputeIdealNumRpcs(kWeight75Percent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Populating Route Configurations for LDS.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("");
auto* weighted_cluster1 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster1->set_name(kNewCluster1Name);
weighted_cluster1->mutable_weight()->set_value(kWeight75);
auto* weighted_cluster2 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster2->set_name(kNewCluster2Name);
weighted_cluster2->mutable_weight()->set_value(kWeight25);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 1, 3);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(0, backends_[0]->backend_service()->request_count());
const int weight_75_request_count =
backends_[1]->backend_service()->request_count();
const int weight_25_request_count =
backends_[2]->backend_service()->request_count();
gpr_log(GPR_INFO, "target_75 received %d rpcs and target_25 received %d rpcs",
weight_75_request_count, weight_25_request_count);
EXPECT_THAT(static_cast<double>(weight_75_request_count) / kNumEchoRpcs,
::testing::DoubleNear(kWeight75Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight_25_request_count) / kNumEchoRpcs,
::testing::DoubleNear(kWeight25Percent, kErrorTolerance));
}
TEST_P(LdsRdsTest, XdsRoutingWeightedClusterUpdateWeights) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const char* kNewCluster3Name = "new_cluster_3";
const char* kNewEdsService3Name = "new_eds_service_name_3";
const size_t kNumEchoRpcs = 10;
const size_t kWeight75 = 75;
const size_t kWeight25 = 25;
const size_t kWeight50 = 50;
const double kErrorTolerance = 0.05;
const double kWeight75Percent = static_cast<double>(kWeight75) / 100;
const double kWeight25Percent = static_cast<double>(kWeight25) / 100;
const double kWeight50Percent = static_cast<double>(kWeight50) / 100;
const size_t kNumEcho1Rpcs7525 =
ComputeIdealNumRpcs(kWeight75Percent, kErrorTolerance);
const size_t kNumEcho1Rpcs5050 =
ComputeIdealNumRpcs(kWeight50Percent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args3({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args3, kNewEdsService3Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
Cluster new_cluster3 = default_cluster_;
new_cluster3.set_name(kNewCluster3Name);
new_cluster3.mutable_eds_cluster_config()->set_service_name(
kNewEdsService3Name);
balancer_->ads_service()->SetCdsResource(new_cluster3);
// Populating Route Configurations.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* weighted_cluster1 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster1->set_name(kNewCluster1Name);
weighted_cluster1->mutable_weight()->set_value(kWeight75);
auto* weighted_cluster2 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster2->set_name(kNewCluster2Name);
weighted_cluster2->mutable_weight()->set_value(kWeight25);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 1, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_timeout_ms(5000));
WaitForAllBackends(
DEBUG_LOCATION, 1, 3, /*check_status=*/nullptr, WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1).set_timeout_ms(5000));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_timeout_ms(5000));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho1Rpcs7525,
RpcOptions().set_rpc_service(SERVICE_ECHO1).set_timeout_ms(5000));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
const int weight_75_request_count =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[1]->backend_service2()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
const int weight_25_request_count =
backends_[2]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
gpr_log(GPR_INFO, "target_75 received %d rpcs and target_25 received %d rpcs",
weight_75_request_count, weight_25_request_count);
EXPECT_THAT(static_cast<double>(weight_75_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight75Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight_25_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight25Percent, kErrorTolerance));
// Change Route Configurations: same clusters different weights.
weighted_cluster1->mutable_weight()->set_value(kWeight50);
weighted_cluster2->mutable_weight()->set_value(kWeight50);
// Change default route to a new cluster to help to identify when new
// polices are seen by the client.
default_route->mutable_route()->set_cluster(kNewCluster3Name);
SetRouteConfiguration(balancer_.get(), new_route_config);
ResetBackendCounters();
WaitForAllBackends(DEBUG_LOCATION, 3, 4, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_timeout_ms(5000));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_timeout_ms(5000));
CheckRpcSendOk(
DEBUG_LOCATION, kNumEcho1Rpcs5050,
RpcOptions().set_rpc_service(SERVICE_ECHO1).set_timeout_ms(5000));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(0, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
const int weight_50_request_count_1 =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
const int weight_50_request_count_2 =
backends_[2]->backend_service1()->request_count();
EXPECT_EQ(kNumEchoRpcs, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
EXPECT_THAT(
static_cast<double>(weight_50_request_count_1) / kNumEcho1Rpcs5050,
::testing::DoubleNear(kWeight50Percent, kErrorTolerance));
EXPECT_THAT(
static_cast<double>(weight_50_request_count_2) / kNumEcho1Rpcs5050,
::testing::DoubleNear(kWeight50Percent, kErrorTolerance));
}
TEST_P(LdsRdsTest, XdsRoutingWeightedClusterUpdateClusters) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const char* kNewCluster3Name = "new_cluster_3";
const char* kNewEdsService3Name = "new_eds_service_name_3";
const size_t kNumEchoRpcs = 10;
const size_t kWeight75 = 75;
const size_t kWeight25 = 25;
const size_t kWeight50 = 50;
const double kErrorTolerance = 0.05;
const double kWeight75Percent = static_cast<double>(kWeight75) / 100;
const double kWeight25Percent = static_cast<double>(kWeight25) / 100;
const double kWeight50Percent = static_cast<double>(kWeight50) / 100;
const size_t kNumEcho1Rpcs7525 =
ComputeIdealNumRpcs(kWeight75Percent, kErrorTolerance);
const size_t kNumEcho1Rpcs5050 =
ComputeIdealNumRpcs(kWeight50Percent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args3({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args3, kNewEdsService3Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
Cluster new_cluster3 = default_cluster_;
new_cluster3.set_name(kNewCluster3Name);
new_cluster3.mutable_eds_cluster_config()->set_service_name(
kNewEdsService3Name);
balancer_->ads_service()->SetCdsResource(new_cluster3);
// Populating Route Configurations.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* weighted_cluster1 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster1->set_name(kNewCluster1Name);
weighted_cluster1->mutable_weight()->set_value(kWeight75);
auto* weighted_cluster2 =
route1->mutable_route()->mutable_weighted_clusters()->add_clusters();
weighted_cluster2->set_name(kDefaultClusterName);
weighted_cluster2->mutable_weight()->set_value(kWeight25);
auto* default_route = new_route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForBackend(DEBUG_LOCATION, 0);
WaitForBackend(DEBUG_LOCATION, 1, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs7525,
RpcOptions().set_rpc_service(SERVICE_ECHO1));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
int weight_25_request_count =
backends_[0]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
int weight_75_request_count =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
gpr_log(GPR_INFO, "target_75 received %d rpcs and target_25 received %d rpcs",
weight_75_request_count, weight_25_request_count);
EXPECT_THAT(static_cast<double>(weight_75_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight75Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight_25_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight25Percent, kErrorTolerance));
// Change Route Configurations: new set of clusters with different weights.
weighted_cluster1->mutable_weight()->set_value(kWeight50);
weighted_cluster2->set_name(kNewCluster2Name);
weighted_cluster2->mutable_weight()->set_value(kWeight50);
SetRouteConfiguration(balancer_.get(), new_route_config);
ResetBackendCounters();
WaitForBackend(DEBUG_LOCATION, 2, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs5050,
RpcOptions().set_rpc_service(SERVICE_ECHO1));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
const int weight_50_request_count_1 =
backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
const int weight_50_request_count_2 =
backends_[2]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service1()->request_count());
EXPECT_THAT(
static_cast<double>(weight_50_request_count_1) / kNumEcho1Rpcs5050,
::testing::DoubleNear(kWeight50Percent, kErrorTolerance));
EXPECT_THAT(
static_cast<double>(weight_50_request_count_2) / kNumEcho1Rpcs5050,
::testing::DoubleNear(kWeight50Percent, kErrorTolerance));
// Change Route Configurations.
weighted_cluster1->mutable_weight()->set_value(kWeight75);
weighted_cluster2->set_name(kNewCluster3Name);
weighted_cluster2->mutable_weight()->set_value(kWeight25);
SetRouteConfiguration(balancer_.get(), new_route_config);
ResetBackendCounters();
WaitForBackend(DEBUG_LOCATION, 3, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs7525,
RpcOptions().set_rpc_service(SERVICE_ECHO1));
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
weight_75_request_count = backends_[1]->backend_service1()->request_count();
EXPECT_EQ(0, backends_[2]->backend_service()->request_count());
EXPECT_EQ(0, backends_[2]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[3]->backend_service()->request_count());
weight_25_request_count = backends_[3]->backend_service1()->request_count();
gpr_log(GPR_INFO, "target_75 received %d rpcs and target_25 received %d rpcs",
weight_75_request_count, weight_25_request_count);
EXPECT_THAT(static_cast<double>(weight_75_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight75Percent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(weight_25_request_count) / kNumEcho1Rpcs7525,
::testing::DoubleNear(kWeight25Percent, kErrorTolerance));
}
TEST_P(LdsRdsTest, XdsRoutingClusterUpdateClusters) {
CreateAndStartBackends(2);
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
const size_t kNumEchoRpcs = 5;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Send Route Configuration.
RouteConfiguration new_route_config = default_route_config_;
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
// Change Route Configurations: new default cluster.
auto* default_route =
new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
default_route->mutable_route()->set_cluster(kNewClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
WaitForAllBackends(DEBUG_LOCATION, 1, 2);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
// Make sure RPCs all go to the correct backend.
EXPECT_EQ(kNumEchoRpcs, backends_[1]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingClusterUpdateClustersWithPickingDelays) {
// Start with only backend 1 up, but the default cluster pointing to
// backend 0, which is down.
CreateBackends(2);
StartBackend(1);
EdsResourceArgs args({{"locality0", CreateEndpointsForBackends(0, 1)}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Start an RPC with wait_for_ready=true and no deadline. This will
// stay pending until backend 0 is reachable.
LongRunningRpc rpc;
rpc.StartRpc(stub_.get(),
RpcOptions().set_wait_for_ready(true).set_timeout_ms(0));
// Send a non-wait_for_ready RPC, which should fail. This tells us
// that the client has received the update and attempted to connect.
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::UNAVAILABLE,
MakeConnectionFailureRegex(
"connections to all backends failing; last error: "));
// Now create a new cluster, pointing to backend 1.
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
EdsResourceArgs args1({{"locality0", CreateEndpointsForBackends(1, 2)}});
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Send a update RouteConfiguration to use backend 1.
RouteConfiguration new_route_config = default_route_config_;
auto* default_route =
new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
default_route->mutable_route()->set_cluster(kNewClusterName);
SetRouteConfiguration(balancer_.get(), new_route_config);
// Wait for RPCs to go to the new backend: 1, this ensures that the client
// has processed the update.
WaitForBackend(
DEBUG_LOCATION, 1,
[&](const RpcResult& result) {
if (!result.status.ok()) {
EXPECT_EQ(result.status.error_code(), StatusCode::UNAVAILABLE);
EXPECT_THAT(
result.status.error_message(),
::testing::MatchesRegex(MakeConnectionFailureRegex(
"connections to all backends failing; last error: ")));
}
},
WaitForBackendOptions().set_reset_counters(false));
// Bring up the backend 0. Yhis will allow the delayed RPC to finally
// complete.
StartBackend(0);
Status status = rpc.GetStatus();
EXPECT_TRUE(status.ok()) << "code=" << status.error_code()
<< " message=" << status.error_message();
// Make sure RPCs went to the correct backends.
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
EXPECT_EQ(1, backends_[1]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingApplyXdsTimeout) {
const auto kTimeoutGrpcHeaderMax = grpc_core::Duration::Milliseconds(1500);
const auto kTimeoutMaxStreamDuration =
grpc_core::Duration::Milliseconds(2500);
const auto kTimeoutHttpMaxStreamDuration =
grpc_core::Duration::Milliseconds(3500);
const auto kTimeoutApplication = grpc_core::Duration::Milliseconds(4500);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const char* kNewCluster3Name = "new_cluster_3";
const char* kNewEdsService3Name = "new_eds_service_name_3";
// Populate new EDS resources.
EdsResourceArgs args({{"locality0", {MakeNonExistantEndpoint()}}});
EdsResourceArgs args1({{"locality0", {MakeNonExistantEndpoint()}}});
EdsResourceArgs args2({{"locality0", {MakeNonExistantEndpoint()}}});
EdsResourceArgs args3({{"locality0", {MakeNonExistantEndpoint()}}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args3, kNewEdsService3Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
Cluster new_cluster3 = default_cluster_;
new_cluster3.set_name(kNewCluster3Name);
new_cluster3.mutable_eds_cluster_config()->set_service_name(
kNewEdsService3Name);
balancer_->ads_service()->SetCdsResource(new_cluster3);
// Construct listener.
auto listener = default_listener_;
HttpConnectionManager http_connection_manager;
listener.mutable_api_listener()->mutable_api_listener()->UnpackTo(
&http_connection_manager);
// Set up HTTP max_stream_duration of 3.5 seconds
SetProtoDuration(
kTimeoutHttpMaxStreamDuration,
http_connection_manager.mutable_common_http_protocol_options()
->mutable_max_stream_duration());
listener.mutable_api_listener()->mutable_api_listener()->PackFrom(
http_connection_manager);
// Construct route config.
RouteConfiguration new_route_config = default_route_config_;
// route 1: Set max_stream_duration of 2.5 seconds, Set
// grpc_timeout_header_max of 1.5
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_path("/grpc.testing.EchoTest1Service/Echo1");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* max_stream_duration =
route1->mutable_route()->mutable_max_stream_duration();
SetProtoDuration(kTimeoutMaxStreamDuration,
max_stream_duration->mutable_max_stream_duration());
SetProtoDuration(kTimeoutGrpcHeaderMax,
max_stream_duration->mutable_grpc_timeout_header_max());
// route 2: Set max_stream_duration of 2.5 seconds
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_path("/grpc.testing.EchoTest2Service/Echo2");
route2->mutable_route()->set_cluster(kNewCluster2Name);
max_stream_duration = route2->mutable_route()->mutable_max_stream_duration();
SetProtoDuration(kTimeoutMaxStreamDuration,
max_stream_duration->mutable_max_stream_duration());
// route 3: No timeout values in route configuration
auto* route3 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route3->mutable_match()->set_path("/grpc.testing.EchoTestService/Echo");
route3->mutable_route()->set_cluster(kNewCluster3Name);
// Set listener and route config.
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
new_route_config);
// Test grpc_timeout_header_max of 1.5 seconds applied
grpc_core::Timestamp t0 = NowFromCycleCounter();
grpc_core::Timestamp t1 =
t0 + (kTimeoutGrpcHeaderMax * grpc_test_slowdown_factor());
grpc_core::Timestamp t2 =
t0 + (kTimeoutMaxStreamDuration * grpc_test_slowdown_factor());
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED,
"Deadline Exceeded",
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_wait_for_ready(true)
.set_timeout(kTimeoutApplication));
EXPECT_THAT(NowFromCycleCounter(), AdjustedClockInRange(t1, t2));
// Test max_stream_duration of 2.5 seconds applied
t0 = NowFromCycleCounter();
t1 = t0 + (kTimeoutMaxStreamDuration * grpc_test_slowdown_factor());
t2 = t0 + (kTimeoutHttpMaxStreamDuration * grpc_test_slowdown_factor());
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED,
"Deadline Exceeded",
RpcOptions()
.set_rpc_service(SERVICE_ECHO2)
.set_rpc_method(METHOD_ECHO2)
.set_wait_for_ready(true)
.set_timeout(kTimeoutApplication));
EXPECT_THAT(NowFromCycleCounter(), AdjustedClockInRange(t1, t2));
// Test http_stream_duration of 3.5 seconds applied
t0 = NowFromCycleCounter();
t1 = t0 + (kTimeoutHttpMaxStreamDuration * grpc_test_slowdown_factor());
t2 = t0 + (kTimeoutApplication * grpc_test_slowdown_factor());
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "Deadline Exceeded",
RpcOptions().set_wait_for_ready(true).set_timeout(kTimeoutApplication));
EXPECT_THAT(NowFromCycleCounter(), AdjustedClockInRange(t1, t2));
}
TEST_P(LdsRdsTest, XdsRoutingApplyApplicationTimeoutWhenXdsTimeoutExplicit) {
const auto kTimeoutMaxStreamDuration =
grpc_core::Duration::Milliseconds(2500);
const auto kTimeoutHttpMaxStreamDuration =
grpc_core::Duration::Milliseconds(3500);
const auto kTimeoutApplication = grpc_core::Duration::Milliseconds(4500);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
// Populate new EDS resources.
EdsResourceArgs args({{"locality0", {MakeNonExistantEndpoint()}}});
EdsResourceArgs args1({{"locality0", {MakeNonExistantEndpoint()}}});
EdsResourceArgs args2({{"locality0", {MakeNonExistantEndpoint()}}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
// Construct listener.
auto listener = default_listener_;
HttpConnectionManager http_connection_manager;
listener.mutable_api_listener()->mutable_api_listener()->UnpackTo(
&http_connection_manager);
// Set up HTTP max_stream_duration of 3.5 seconds
SetProtoDuration(
kTimeoutHttpMaxStreamDuration,
http_connection_manager.mutable_common_http_protocol_options()
->mutable_max_stream_duration());
listener.mutable_api_listener()->mutable_api_listener()->PackFrom(
http_connection_manager);
// Construct route config.
RouteConfiguration new_route_config = default_route_config_;
// route 1: Set max_stream_duration of 2.5 seconds, Set
// grpc_timeout_header_max of 0
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_path("/grpc.testing.EchoTest1Service/Echo1");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* max_stream_duration =
route1->mutable_route()->mutable_max_stream_duration();
SetProtoDuration(kTimeoutMaxStreamDuration,
max_stream_duration->mutable_max_stream_duration());
SetProtoDuration(grpc_core::Duration::Zero(),
max_stream_duration->mutable_grpc_timeout_header_max());
// route 2: Set max_stream_duration to 0
auto* route2 = new_route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_path("/grpc.testing.EchoTest2Service/Echo2");
route2->mutable_route()->set_cluster(kNewCluster2Name);
max_stream_duration = route2->mutable_route()->mutable_max_stream_duration();
SetProtoDuration(grpc_core::Duration::Zero(),
max_stream_duration->mutable_max_stream_duration());
// Set listener and route config.
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
new_route_config);
// Test application timeout is applied for route 1
auto t0 = system_clock::now();
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED,
"Deadline Exceeded",
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_wait_for_ready(true)
.set_timeout(kTimeoutApplication));
auto elapsed_nano_seconds =
std::chrono::duration_cast<std::chrono::nanoseconds>(system_clock::now() -
t0);
EXPECT_GT(
elapsed_nano_seconds.count(),
(kTimeoutApplication * grpc_test_slowdown_factor()).millis() * 1000);
// Test application timeout is applied for route 2
t0 = system_clock::now();
CheckRpcSendFailure(DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED,
"Deadline Exceeded",
RpcOptions()
.set_rpc_service(SERVICE_ECHO2)
.set_rpc_method(METHOD_ECHO2)
.set_wait_for_ready(true)
.set_timeout(kTimeoutApplication));
elapsed_nano_seconds = std::chrono::duration_cast<std::chrono::nanoseconds>(
system_clock::now() - t0);
EXPECT_GT(
elapsed_nano_seconds.count(),
(kTimeoutApplication * grpc_test_slowdown_factor()).millis() * 1000);
}
TEST_P(LdsRdsTest, XdsRoutingApplyApplicationTimeoutWhenHttpTimeoutExplicit) {
const auto kTimeoutApplication = grpc_core::Duration::Milliseconds(4500);
// Populate new EDS resources.
EdsResourceArgs args({{"locality0", {MakeNonExistantEndpoint()}}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
auto listener = default_listener_;
HttpConnectionManager http_connection_manager;
listener.mutable_api_listener()->mutable_api_listener()->UnpackTo(
&http_connection_manager);
// Set up HTTP max_stream_duration to be explicit 0
auto* duration =
http_connection_manager.mutable_common_http_protocol_options()
->mutable_max_stream_duration();
duration->set_seconds(0);
duration->set_nanos(0);
listener.mutable_api_listener()->mutable_api_listener()->PackFrom(
http_connection_manager);
// Set listener and route config.
SetListenerAndRouteConfiguration(balancer_.get(), std::move(listener),
default_route_config_);
// Test application timeout is applied for route 1
auto t0 = system_clock::now();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "Deadline Exceeded",
RpcOptions().set_wait_for_ready(true).set_timeout(kTimeoutApplication));
auto elapsed_nano_seconds =
std::chrono::duration_cast<std::chrono::nanoseconds>(system_clock::now() -
t0);
EXPECT_GT(
elapsed_nano_seconds.count(),
(kTimeoutApplication * grpc_test_slowdown_factor()).millis() * 1000);
}
// Test to ensure application-specified deadline won't be affected when
// the xDS config does not specify a timeout.
TEST_P(LdsRdsTest, XdsRoutingWithOnlyApplicationTimeout) {
const auto kTimeoutApplication = grpc_core::Duration::Milliseconds(4500);
// Populate new EDS resources.
EdsResourceArgs args({{"locality0", {MakeNonExistantEndpoint()}}});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
auto t0 = system_clock::now();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "Deadline Exceeded",
RpcOptions().set_wait_for_ready(true).set_timeout(kTimeoutApplication));
auto elapsed_nano_seconds =
std::chrono::duration_cast<std::chrono::nanoseconds>(system_clock::now() -
t0);
EXPECT_GT(
elapsed_nano_seconds.count(),
(kTimeoutApplication * grpc_test_slowdown_factor()).millis() * 1000);
}
TEST_P(LdsRdsTest, XdsRetryPolicyNumRetries) {
CreateAndStartBackends(1);
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
auto* retry_policy = route1->mutable_route()->mutable_retry_policy();
retry_policy->set_retry_on(
"5xx,cancelled,deadline-exceeded,internal,resource-exhausted,"
"unavailable");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
SetRouteConfiguration(balancer_.get(), new_route_config);
// Ensure we retried the correct number of times on all supported status.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::CANCELLED, "",
RpcOptions().set_server_expected_error(StatusCode::CANCELLED));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
ResetBackendCounters();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "",
RpcOptions().set_server_expected_error(StatusCode::DEADLINE_EXCEEDED));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
ResetBackendCounters();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::INTERNAL, "",
RpcOptions().set_server_expected_error(StatusCode::INTERNAL));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
ResetBackendCounters();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::RESOURCE_EXHAUSTED, "",
RpcOptions().set_server_expected_error(StatusCode::RESOURCE_EXHAUSTED));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
ResetBackendCounters();
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::UNAVAILABLE, "",
RpcOptions().set_server_expected_error(StatusCode::UNAVAILABLE));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
ResetBackendCounters();
// Ensure we don't retry on an unsupported status.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::UNAUTHENTICATED, "",
RpcOptions().set_server_expected_error(StatusCode::UNAUTHENTICATED));
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRetryPolicyAtVirtualHostLevel) {
CreateAndStartBackends(1);
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy.
RouteConfiguration new_route_config = default_route_config_;
auto* retry_policy =
new_route_config.mutable_virtual_hosts(0)->mutable_retry_policy();
retry_policy->set_retry_on(
"cancelled,deadline-exceeded,internal,resource-exhausted,unavailable");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
SetRouteConfiguration(balancer_.get(), new_route_config);
// Ensure we retried the correct number of times on a supported status.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "",
RpcOptions().set_server_expected_error(StatusCode::DEADLINE_EXCEEDED));
EXPECT_EQ(kNumRetries + 1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRetryPolicyLongBackOff) {
CreateAndStartBackends(1);
// Set num retries to 3, but due to longer back off, we expect only 1 retry
// will take place.
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
auto* retry_policy = route1->mutable_route()->mutable_retry_policy();
retry_policy->set_retry_on(
"5xx,cancelled,deadline-exceeded,internal,resource-exhausted,"
"unavailable");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
// Set backoff to 1 second, 1/2 of rpc timeout of 2 second.
SetProtoDuration(
grpc_core::Duration::Seconds(1),
retry_policy->mutable_retry_back_off()->mutable_base_interval());
SetRouteConfiguration(balancer_.get(), new_route_config);
// No need to set max interval and just let it be the default of 10x of base.
// We expect 1 retry before the RPC times out with DEADLINE_EXCEEDED.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "Deadline Exceeded",
RpcOptions().set_timeout_ms(2500).set_server_expected_error(
StatusCode::CANCELLED));
EXPECT_EQ(1 + 1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRetryPolicyMaxBackOff) {
CreateAndStartBackends(1);
// Set num retries to 3, but due to longer back off, we expect only 2 retry
// will take place, while the 2nd one will obey the max backoff.
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
auto* retry_policy = route1->mutable_route()->mutable_retry_policy();
retry_policy->set_retry_on(
"5xx,cancelled,deadline-exceeded,internal,resource-exhausted,"
"unavailable");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
// Set backoff to 1 second.
SetProtoDuration(
grpc_core::Duration::Seconds(1),
retry_policy->mutable_retry_back_off()->mutable_base_interval());
// Set max interval to be the same as base, so 2 retries will take 2 seconds
// and both retries will take place before the 2.5 seconds rpc timeout.
// Tested to ensure if max is not set, this test will be the same as
// XdsRetryPolicyLongBackOff and we will only see 1 retry in that case.
SetProtoDuration(
grpc_core::Duration::Seconds(1),
retry_policy->mutable_retry_back_off()->mutable_max_interval());
SetRouteConfiguration(balancer_.get(), new_route_config);
// Send an initial RPC to make sure we get connected (we don't want
// the channel startup time to affect the retry timing).
CheckRpcSendOk(DEBUG_LOCATION);
ResetBackendCounters();
// We expect 2 retry before the RPC times out with DEADLINE_EXCEEDED.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "Deadline Exceeded",
RpcOptions().set_timeout_ms(2500).set_server_expected_error(
StatusCode::CANCELLED));
EXPECT_EQ(2 + 1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRetryPolicyUnsupportedStatusCode) {
CreateAndStartBackends(1);
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
auto* retry_policy = route1->mutable_route()->mutable_retry_policy();
retry_policy->set_retry_on("5xx");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
SetRouteConfiguration(balancer_.get(), new_route_config);
// We expect no retry.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "",
RpcOptions().set_server_expected_error(StatusCode::DEADLINE_EXCEEDED));
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest,
XdsRetryPolicyUnsupportedStatusCodeWithVirtualHostLevelRetry) {
CreateAndStartBackends(1);
const size_t kNumRetries = 3;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
// Construct route config to set retry policy with no supported retry_on
// statuses.
RouteConfiguration new_route_config = default_route_config_;
auto* route1 = new_route_config.mutable_virtual_hosts(0)->mutable_routes(0);
auto* retry_policy = route1->mutable_route()->mutable_retry_policy();
retry_policy->set_retry_on("5xx");
retry_policy->mutable_num_retries()->set_value(kNumRetries);
// Construct a virtual host level retry policy with supported statuses.
auto* virtual_host_retry_policy =
new_route_config.mutable_virtual_hosts(0)->mutable_retry_policy();
virtual_host_retry_policy->set_retry_on(
"cancelled,deadline-exceeded,internal,resource-exhausted,unavailable");
virtual_host_retry_policy->mutable_num_retries()->set_value(kNumRetries);
SetRouteConfiguration(balancer_.get(), new_route_config);
// We expect no retry.
CheckRpcSendFailure(
DEBUG_LOCATION, StatusCode::DEADLINE_EXCEEDED, "",
RpcOptions().set_server_expected_error(StatusCode::DEADLINE_EXCEEDED));
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
}
TEST_P(LdsRdsTest, XdsRoutingHeadersMatching) {
CreateAndStartBackends(2);
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
const size_t kNumEcho1Rpcs = 100;
const size_t kNumEchoRpcs = 5;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* header_matcher1 = route1->mutable_match()->add_headers();
header_matcher1->set_name("header1");
header_matcher1->set_exact_match("POST,PUT,GET");
auto* header_matcher2 = route1->mutable_match()->add_headers();
header_matcher2->set_name("header2");
header_matcher2->mutable_safe_regex_match()->set_regex("[a-z]*");
auto* header_matcher3 = route1->mutable_match()->add_headers();
header_matcher3->set_name("header3");
header_matcher3->mutable_range_match()->set_start(1);
header_matcher3->mutable_range_match()->set_end(1000);
auto* header_matcher4 = route1->mutable_match()->add_headers();
header_matcher4->set_name("header4");
header_matcher4->set_present_match(false);
auto* header_matcher5 = route1->mutable_match()->add_headers();
header_matcher5->set_name("header5");
header_matcher5->set_present_match(true);
auto* header_matcher6 = route1->mutable_match()->add_headers();
header_matcher6->set_name("header6");
header_matcher6->set_prefix_match("/grpc");
auto* header_matcher7 = route1->mutable_match()->add_headers();
header_matcher7->set_name("header7");
header_matcher7->set_suffix_match(".cc");
header_matcher7->set_invert_match(true);
route1->mutable_route()->set_cluster(kNewClusterName);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
std::vector<std::pair<std::string, std::string>> metadata = {
{"header1", "POST"},
{"header2", "blah"},
{"header3", "1"},
{"header5", "anything"},
{"header6", "/grpc.testing.EchoTest1Service/"},
{"header1", "PUT"},
{"header7", "grpc.java"},
{"header1", "GET"},
};
const auto header_match_rpc_options = RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_metadata(std::move(metadata));
// Make sure all backends are up.
WaitForBackend(DEBUG_LOCATION, 0);
WaitForBackend(DEBUG_LOCATION, 1, /*check_status=*/nullptr,
WaitForBackendOptions(), header_match_rpc_options);
// Send RPCs.
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs, header_match_rpc_options);
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service2()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[1]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service2()->request_count());
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, XdsRoutingHeadersMatchingSpecialHeaderContentType) {
CreateAndStartBackends(2);
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
const size_t kNumEchoRpcs = 100;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("");
auto* header_matcher1 = route1->mutable_match()->add_headers();
header_matcher1->set_name("content-type");
header_matcher1->set_exact_match("notapplication/grpc");
route1->mutable_route()->set_cluster(kNewClusterName);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
auto* header_matcher2 = default_route->mutable_match()->add_headers();
header_matcher2->set_name("content-type");
header_matcher2->set_exact_match("application/grpc");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
// Make sure the backend is up.
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
// Send RPCs.
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs);
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, XdsRoutingHeadersMatchingSpecialCasesToIgnore) {
CreateAndStartBackends(2);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const size_t kNumEchoRpcs = 100;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("");
auto* header_matcher1 = route1->mutable_match()->add_headers();
header_matcher1->set_name("grpc-foo-bin");
header_matcher1->set_present_match(true);
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
// Send headers which will mismatch each route
std::vector<std::pair<std::string, std::string>> metadata = {
{"grpc-foo-bin", "grpc-foo-bin"},
};
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_metadata(metadata));
// Verify that only the default backend got RPCs since all previous routes
// were mismatched.
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, XdsRoutingRuntimeFractionMatching) {
CreateAndStartBackends(2);
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
const double kErrorTolerance = 0.05;
const size_t kRouteMatchNumerator = 25;
const double kRouteMatchPercent =
static_cast<double>(kRouteMatchNumerator) / 100;
const size_t kNumRpcs =
ComputeIdealNumRpcs(kRouteMatchPercent, kErrorTolerance);
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()
->mutable_runtime_fraction()
->mutable_default_value()
->set_numerator(kRouteMatchNumerator);
route1->mutable_route()->set_cluster(kNewClusterName);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
WaitForAllBackends(DEBUG_LOCATION, 0, 2);
CheckRpcSendOk(DEBUG_LOCATION, kNumRpcs);
const int default_backend_count =
backends_[0]->backend_service()->request_count();
const int matched_backend_count =
backends_[1]->backend_service()->request_count();
EXPECT_THAT(static_cast<double>(default_backend_count) / kNumRpcs,
::testing::DoubleNear(1 - kRouteMatchPercent, kErrorTolerance));
EXPECT_THAT(static_cast<double>(matched_backend_count) / kNumRpcs,
::testing::DoubleNear(kRouteMatchPercent, kErrorTolerance));
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, XdsRoutingHeadersMatchingUnmatchCases) {
CreateAndStartBackends(4);
const char* kNewCluster1Name = "new_cluster_1";
const char* kNewEdsService1Name = "new_eds_service_name_1";
const char* kNewCluster2Name = "new_cluster_2";
const char* kNewEdsService2Name = "new_eds_service_name_2";
const char* kNewCluster3Name = "new_cluster_3";
const char* kNewEdsService3Name = "new_eds_service_name_3";
const size_t kNumEcho1Rpcs = 100;
const size_t kNumEchoRpcs = 5;
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
EdsResourceArgs args2({
{"locality0", CreateEndpointsForBackends(2, 3)},
});
EdsResourceArgs args3({
{"locality0", CreateEndpointsForBackends(3, 4)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsService1Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args2, kNewEdsService2Name));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args3, kNewEdsService3Name));
// Populate new CDS resources.
Cluster new_cluster1 = default_cluster_;
new_cluster1.set_name(kNewCluster1Name);
new_cluster1.mutable_eds_cluster_config()->set_service_name(
kNewEdsService1Name);
balancer_->ads_service()->SetCdsResource(new_cluster1);
Cluster new_cluster2 = default_cluster_;
new_cluster2.set_name(kNewCluster2Name);
new_cluster2.mutable_eds_cluster_config()->set_service_name(
kNewEdsService2Name);
balancer_->ads_service()->SetCdsResource(new_cluster2);
Cluster new_cluster3 = default_cluster_;
new_cluster3.set_name(kNewCluster3Name);
new_cluster3.mutable_eds_cluster_config()->set_service_name(
kNewEdsService3Name);
balancer_->ads_service()->SetCdsResource(new_cluster3);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* header_matcher1 = route1->mutable_match()->add_headers();
header_matcher1->set_name("header1");
header_matcher1->set_exact_match("POST");
route1->mutable_route()->set_cluster(kNewCluster1Name);
auto route2 = route_config.mutable_virtual_hosts(0)->add_routes();
route2->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* header_matcher2 = route2->mutable_match()->add_headers();
header_matcher2->set_name("header2");
header_matcher2->mutable_range_match()->set_start(1);
header_matcher2->mutable_range_match()->set_end(1000);
route2->mutable_route()->set_cluster(kNewCluster2Name);
auto route3 = route_config.mutable_virtual_hosts(0)->add_routes();
route3->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
auto* header_matcher3 = route3->mutable_match()->add_headers();
header_matcher3->set_name("header3");
header_matcher3->mutable_safe_regex_match()->set_regex("[a-z]*");
route3->mutable_route()->set_cluster(kNewCluster3Name);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
// Send headers which will mismatch each route
std::vector<std::pair<std::string, std::string>> metadata = {
{"header1", "POST"},
{"header2", "1000"},
{"header3", "123"},
{"header1", "GET"},
};
WaitForAllBackends(DEBUG_LOCATION, 0, 1);
CheckRpcSendOk(DEBUG_LOCATION, kNumEchoRpcs,
RpcOptions().set_metadata(metadata));
CheckRpcSendOk(DEBUG_LOCATION, kNumEcho1Rpcs,
RpcOptions()
.set_rpc_service(SERVICE_ECHO1)
.set_rpc_method(METHOD_ECHO1)
.set_metadata(metadata));
// Verify that only the default backend got RPCs since all previous routes
// were mismatched.
for (size_t i = 1; i < 4; ++i) {
EXPECT_EQ(0, backends_[i]->backend_service()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[i]->backend_service2()->request_count());
}
EXPECT_EQ(kNumEchoRpcs, backends_[0]->backend_service()->request_count());
EXPECT_EQ(kNumEcho1Rpcs, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service2()->request_count());
auto response_state = RouteConfigurationResponseState(balancer_.get());
ASSERT_TRUE(response_state.has_value());
EXPECT_EQ(response_state->state, AdsServiceImpl::ResponseState::ACKED);
}
TEST_P(LdsRdsTest, XdsRoutingChangeRoutesWithoutChangingClusters) {
CreateAndStartBackends(2);
const char* kNewClusterName = "new_cluster";
const char* kNewEdsServiceName = "new_eds_service_name";
// Populate new EDS resources.
EdsResourceArgs args({
{"locality0", CreateEndpointsForBackends(0, 1)},
});
EdsResourceArgs args1({
{"locality0", CreateEndpointsForBackends(1, 2)},
});
balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
balancer_->ads_service()->SetEdsResource(
BuildEdsResource(args1, kNewEdsServiceName));
// Populate new CDS resources.
Cluster new_cluster = default_cluster_;
new_cluster.set_name(kNewClusterName);
new_cluster.mutable_eds_cluster_config()->set_service_name(
kNewEdsServiceName);
balancer_->ads_service()->SetCdsResource(new_cluster);
// Populating Route Configurations for LDS.
RouteConfiguration route_config = default_route_config_;
auto* route1 = route_config.mutable_virtual_hosts(0)->mutable_routes(0);
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest1Service/");
route1->mutable_route()->set_cluster(kNewClusterName);
auto* default_route = route_config.mutable_virtual_hosts(0)->add_routes();
default_route->mutable_match()->set_prefix("");
default_route->mutable_route()->set_cluster(kDefaultClusterName);
SetRouteConfiguration(balancer_.get(), route_config);
// Make sure all backends are up and that requests for each RPC
// service go to the right backends.
WaitForBackend(DEBUG_LOCATION, 0, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false));
WaitForBackend(DEBUG_LOCATION, 1, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
WaitForBackend(DEBUG_LOCATION, 0, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false),
RpcOptions().set_rpc_service(SERVICE_ECHO2));
// Requests for services Echo and Echo2 should have gone to backend 0.
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(1, backends_[0]->backend_service2()->request_count());
// Requests for service Echo1 should have gone to backend 1.
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
EXPECT_EQ(1, backends_[1]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service2()->request_count());
// Now send an update that changes the first route to match a
// different RPC service, and wait for the client to make the change.
route1->mutable_match()->set_prefix("/grpc.testing.EchoTest2Service/");
SetRouteConfiguration(balancer_.get(), route_config);
WaitForBackend(DEBUG_LOCATION, 1, /*check_status=*/nullptr,
WaitForBackendOptions(),
RpcOptions().set_rpc_service(SERVICE_ECHO2));
// Now repeat the earlier test, making sure all traffic goes to the
// right place.
WaitForBackend(DEBUG_LOCATION, 0, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false));
WaitForBackend(DEBUG_LOCATION, 0, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false),
RpcOptions().set_rpc_service(SERVICE_ECHO1));
WaitForBackend(DEBUG_LOCATION, 1, /*check_status=*/nullptr,
WaitForBackendOptions().set_reset_counters(false),
RpcOptions().set_rpc_service(SERVICE_ECHO2));
// Requests for services Echo and Echo1 should have gone to backend 0.
EXPECT_EQ(1, backends_[0]->backend_service()->request_count());
EXPECT_EQ(1, backends_[0]->backend_service1()->request_count());
EXPECT_EQ(0, backends_[0]->backend_service2()->request_count());
// Requests for service Echo2 should have gone to backend 1.
EXPECT_EQ(0, backends_[1]->backend_service()->request_count());
EXPECT_EQ(0, backends_[1]->backend_service1()->request_count());
EXPECT_EQ(1, backends_[1]->backend_service2()->request_count());
}
} // namespace
} // namespace testing
} // namespace grpc
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
::testing::InitGoogleTest(&argc, argv);
// Make the backup poller poll very frequently in order to pick up
// updates from all the subchannels's FDs.
GPR_GLOBAL_CONFIG_SET(grpc_client_channel_backup_poll_interval_ms, 1);
#if TARGET_OS_IPHONE
// Workaround Apple CFStream bug
grpc_core::SetEnv("grpc_cfstream", "0");
#endif
grpc_init();
const auto result = RUN_ALL_TESTS();
grpc_shutdown();
return result;
}