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//
//
// Copyright 2015 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.
// is % allowed in string
//
#include <limits.h>
#include <memory>
#include <string>
#include <thread>
#include <utility>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/log/check.h"
#include "absl/log/globals.h"
#include "absl/log/log.h"
#include <grpc/support/time.h>
#include <grpcpp/create_channel.h>
#include <grpcpp/grpcpp.h>
#include "src/core/lib/gprpp/crash.h"
#include "src/proto/grpc/testing/metrics.grpc.pb.h"
#include "src/proto/grpc/testing/metrics.pb.h"
#include "test/cpp/interop/interop_client.h"
#include "test/cpp/interop/stress_interop_client.h"
#include "test/cpp/util/create_test_channel.h"
#include "test/cpp/util/metrics_server.h"
#include "test/cpp/util/test_config.h"
ABSL_FLAG(int32_t, metrics_port, 8081, "The metrics server port.");
// TODO(Capstan): Consider using absl::Duration
ABSL_FLAG(int32_t, sleep_duration_ms, 0,
"The duration (in millisec) between two"
" consecutive test calls (per server) issued by the server.");
// TODO(Capstan): Consider using absl::Duration
ABSL_FLAG(int32_t, test_duration_secs, -1,
"The length of time (in seconds) to run"
" the test. Enter -1 if the test should run continuously until"
" forcefully terminated.");
ABSL_FLAG(std::string, server_addresses, "localhost:8080",
"The list of server addresses. The format is: \n"
" \"<name_1>:<port_1>,<name_2>:<port_1>...<name_N>:<port_N>\"\n"
" Note: <name> can be servername or IP address.");
ABSL_FLAG(int32_t, num_channels_per_server, 1,
"Number of channels for each server");
ABSL_FLAG(int32_t, num_stubs_per_channel, 1,
"Number of stubs per each channels to server. This number also "
"indicates the max number of parallel RPC calls on each channel "
"at any given time.");
// TODO(sreek): Add more test cases here in future
ABSL_FLAG(std::string, test_cases, "",
"List of test cases to call along with the"
" relative weights in the following format:\n"
" \"<testcase_1:w_1>,<testcase_2:w_2>...<testcase_n:w_n>\"\n"
" The following testcases are currently supported:\n"
" empty_unary\n"
" large_unary\n"
" large_compressed_unary\n"
" client_streaming\n"
" server_streaming\n"
" server_compressed_streaming\n"
" slow_consumer\n"
" half_duplex\n"
" ping_pong\n"
" cancel_after_begin\n"
" cancel_after_first_response\n"
" timeout_on_sleeping_server\n"
" empty_stream\n"
" status_code_and_message\n"
" custom_metadata\n"
" Example: \"empty_unary:20,large_unary:10,empty_stream:70\"\n"
" The above will execute 'empty_unary', 20% of the time,"
" 'large_unary', 10% of the time and 'empty_stream' the remaining"
" 70% of the time");
ABSL_FLAG(
int32_t, absl_min_log_level,
static_cast<int32_t>(absl::LogSeverityAtLeast::kInfo),
"Severity level of messages that should be logged by absl::SetMinLogLevel");
ABSL_FLAG(int32_t, absl_vlog_level, -1,
"Severity level of messages that should be logged. Set using "
"absl::SetVLogLevel");
ABSL_FLAG(bool, do_not_abort_on_transient_failures, true,
"If set to 'true', abort() is not called in case of transient "
"failures like temporary connection failures.");
// Options from client.cc (for compatibility with interop test).
// TODO(sreek): Consolidate overlapping options
ABSL_FLAG(bool, use_alts, false,
"Whether to use alts. Enable alts will disable tls.");
ABSL_FLAG(bool, use_tls, false, "Whether to use tls.");
ABSL_FLAG(bool, use_test_ca, false, "False to use SSL roots for google");
ABSL_FLAG(std::string, server_host_override, "",
"Override the server host which is sent in HTTP header");
using grpc::testing::ALTS;
using grpc::testing::INSECURE;
using grpc::testing::kTestCaseList;
using grpc::testing::MetricsServiceImpl;
using grpc::testing::StressTestInteropClient;
using grpc::testing::TestCaseType;
using grpc::testing::TLS;
using grpc::testing::transport_security;
using grpc::testing::UNKNOWN_TEST;
using grpc::testing::WeightedRandomTestSelector;
static int absl_vlog_level = -1;
static absl::LogSeverityAtLeast absl_min_log_level =
absl::LogSeverityAtLeast::kInfo;
TestCaseType GetTestTypeFromName(const std::string& test_name) {
TestCaseType test_case = UNKNOWN_TEST;
for (auto it = kTestCaseList.begin(); it != kTestCaseList.end(); it++) {
if (test_name == it->second) {
test_case = it->first;
break;
}
}
return test_case;
}
// Converts a string of comma delimited tokens to a vector of tokens
bool ParseCommaDelimitedString(const std::string& comma_delimited_str,
std::vector<std::string>& tokens) {
size_t bpos = 0;
size_t epos = std::string::npos;
while ((epos = comma_delimited_str.find(',', bpos)) != std::string::npos) {
tokens.emplace_back(comma_delimited_str.substr(bpos, epos - bpos));
bpos = epos + 1;
}
tokens.emplace_back(comma_delimited_str.substr(bpos)); // Last token
return true;
}
// Input: Test case string "<testcase_name:weight>,<testcase_name:weight>...."
// Output:
// - Whether parsing was successful (return value)
// - Vector of (test_type_enum, weight) pairs returned via 'tests' parameter
bool ParseTestCasesString(const std::string& test_cases,
std::vector<std::pair<TestCaseType, int>>& tests) {
bool is_success = true;
std::vector<std::string> tokens;
ParseCommaDelimitedString(test_cases, tokens);
for (auto it = tokens.begin(); it != tokens.end(); it++) {
// Token is in the form <test_name>:<test_weight>
size_t colon_pos = it->find(':');
if (colon_pos == std::string::npos) {
LOG(ERROR) << "Error in parsing test case string: " << it->c_str();
is_success = false;
break;
}
std::string test_name = it->substr(0, colon_pos);
int weight = std::stoi(it->substr(colon_pos + 1));
TestCaseType test_case = GetTestTypeFromName(test_name);
if (test_case == UNKNOWN_TEST) {
LOG(ERROR) << "Unknown test case: " << test_name;
is_success = false;
break;
}
tests.emplace_back(std::make_pair(test_case, weight));
}
return is_success;
}
// For debugging purposes
void LogParameterInfo(const std::vector<std::string>& addresses,
const std::vector<std::pair<TestCaseType, int>>& tests) {
LOG(INFO) << "server_addresses: " << absl::GetFlag(FLAGS_server_addresses);
LOG(INFO) << "test_cases : " << absl::GetFlag(FLAGS_test_cases);
LOG(INFO) << "sleep_duration_ms: " << absl::GetFlag(FLAGS_sleep_duration_ms);
LOG(INFO) << "test_duration_secs: "
<< absl::GetFlag(FLAGS_test_duration_secs);
LOG(INFO) << "num_channels_per_server: "
<< absl::GetFlag(FLAGS_num_channels_per_server);
LOG(INFO) << "num_stubs_per_channel: "
<< absl::GetFlag(FLAGS_num_stubs_per_channel);
LOG(INFO) << "absl_vlog_level: " << absl::GetFlag(FLAGS_absl_vlog_level);
LOG(INFO) << "absl_min_log_level: "
<< absl::GetFlag(FLAGS_absl_min_log_level);
LOG(INFO) << "do_not_abort_on_transient_failures: "
<< (absl::GetFlag(FLAGS_do_not_abort_on_transient_failures)
? "true"
: "false");
int num = 0;
for (auto it = addresses.begin(); it != addresses.end(); it++) {
LOG(INFO) << ++num << ":" << it->c_str();
}
num = 0;
for (auto it = tests.begin(); it != tests.end(); it++) {
TestCaseType test_case = it->first;
int weight = it->second;
LOG(INFO) << ++num << ". TestCaseType: " << test_case
<< ", Weight: " << weight;
}
}
void SetLogLevels() {
absl_vlog_level = absl::GetFlag(FLAGS_absl_vlog_level);
CHECK_LE(-1, absl_vlog_level);
CHECK_LE(absl_vlog_level, (INT_MAX - 1));
absl::SetVLogLevel("*grpc*/*", absl_vlog_level);
absl_min_log_level = static_cast<absl::LogSeverityAtLeast>(
absl::GetFlag(FLAGS_absl_min_log_level));
CHECK_LE(absl::LogSeverityAtLeast::kInfo, absl_min_log_level);
CHECK_LE(absl_min_log_level, absl::LogSeverityAtLeast::kInfinity);
absl::SetMinLogLevel(absl_min_log_level);
}
int main(int argc, char** argv) {
grpc::testing::InitTest(&argc, &argv, true);
SetLogLevels();
srand(time(nullptr));
// Parse the server addresses
std::vector<std::string> server_addresses;
ParseCommaDelimitedString(absl::GetFlag(FLAGS_server_addresses),
server_addresses);
// Parse test cases and weights
if (absl::GetFlag(FLAGS_test_cases).length() == 0) {
LOG(ERROR) << "No test cases supplied";
return 1;
}
std::vector<std::pair<TestCaseType, int>> tests;
if (!ParseTestCasesString(absl::GetFlag(FLAGS_test_cases), tests)) {
LOG(ERROR) << "Error in parsing test cases string "
<< absl::GetFlag(FLAGS_test_cases);
return 1;
}
LogParameterInfo(server_addresses, tests);
WeightedRandomTestSelector test_selector(tests);
MetricsServiceImpl metrics_service;
LOG(INFO) << "Starting test(s)..";
std::vector<std::thread> test_threads;
std::vector<std::unique_ptr<StressTestInteropClient>> clients;
// Create and start the test threads.
// Note that:
// - Each server can have multiple channels (as configured by
// FLAGS_num_channels_per_server).
//
// - Each channel can have multiple stubs (as configured by
// FLAGS_num_stubs_per_channel). This is to test calling multiple RPCs in
// parallel on the same channel.
int thread_idx = 0;
int server_idx = -1;
char buffer[256];
transport_security security_type =
absl::GetFlag(FLAGS_use_alts)
? ALTS
: (absl::GetFlag(FLAGS_use_tls) ? TLS : INSECURE);
for (auto it = server_addresses.begin(); it != server_addresses.end(); it++) {
++server_idx;
// Create channel(s) for each server
for (int channel_idx = 0;
channel_idx < absl::GetFlag(FLAGS_num_channels_per_server);
channel_idx++) {
LOG(INFO) << "Starting test with " << it->c_str()
<< " channel_idx=" << channel_idx << "..";
grpc::testing::ChannelCreationFunc channel_creation_func =
std::bind(static_cast<std::shared_ptr<grpc::Channel> (*)(
const std::string&, const std::string&,
grpc::testing::transport_security, bool)>(
grpc::CreateTestChannel),
*it, absl::GetFlag(FLAGS_server_host_override),
security_type, !absl::GetFlag(FLAGS_use_test_ca));
// Create stub(s) for each channel
for (int stub_idx = 0;
stub_idx < absl::GetFlag(FLAGS_num_stubs_per_channel); stub_idx++) {
clients.emplace_back(new StressTestInteropClient(
++thread_idx, *it, channel_creation_func, test_selector,
absl::GetFlag(FLAGS_test_duration_secs),
absl::GetFlag(FLAGS_sleep_duration_ms),
absl::GetFlag(FLAGS_do_not_abort_on_transient_failures)));
bool is_already_created = false;
// QpsGauge name
std::snprintf(buffer, sizeof(buffer),
"/stress_test/server_%d/channel_%d/stub_%d/qps",
server_idx, channel_idx, stub_idx);
test_threads.emplace_back(std::thread(
&StressTestInteropClient::MainLoop, clients.back().get(),
metrics_service.CreateQpsGauge(buffer, &is_already_created)));
// The QpsGauge should not have been already created
CHECK(!is_already_created);
}
}
}
// Start metrics server before waiting for the stress test threads
std::unique_ptr<grpc::Server> metrics_server;
if (absl::GetFlag(FLAGS_metrics_port) > 0) {
metrics_server =
metrics_service.StartServer(absl::GetFlag(FLAGS_metrics_port));
}
// Wait for the stress test threads to complete
for (auto it = test_threads.begin(); it != test_threads.end(); it++) {
it->join();
}
return 0;
}