|
|
|
/*
|
|
|
|
*
|
|
|
|
* Copyright 2015, Google Inc.
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions are
|
|
|
|
* met:
|
|
|
|
*
|
|
|
|
* * Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* * Redistributions in binary form must reproduce the above
|
|
|
|
* copyright notice, this list of conditions and the following disclaimer
|
|
|
|
* in the documentation and/or other materials provided with the
|
|
|
|
* distribution.
|
|
|
|
* * Neither the name of Google Inc. nor the names of its
|
|
|
|
* contributors may be used to endorse or promote products derived from
|
|
|
|
* this software without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*is % allowed in string
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "test/cpp/util/metrics_server.h"
|
|
|
|
|
|
|
|
#include <grpc++/server.h>
|
|
|
|
#include <grpc++/server_builder.h>
|
|
|
|
#include <grpc/support/log.h>
|
|
|
|
|
|
|
|
#include "src/proto/grpc/testing/metrics.grpc.pb.h"
|
|
|
|
#include "src/proto/grpc/testing/metrics.pb.h"
|
|
|
|
|
|
|
|
namespace grpc {
|
|
|
|
namespace testing {
|
|
|
|
|
|
|
|
QpsGauge::QpsGauge()
|
|
|
|
: start_time_(gpr_now(GPR_CLOCK_REALTIME)), num_queries_(0) {}
|
|
|
|
|
|
|
|
void QpsGauge::Reset() {
|
|
|
|
std::lock_guard<std::mutex> lock(num_queries_mu_);
|
|
|
|
num_queries_ = 0;
|
|
|
|
start_time_ = gpr_now(GPR_CLOCK_REALTIME);
|
|
|
|
}
|
|
|
|
|
|
|
|
void QpsGauge::Incr() {
|
|
|
|
std::lock_guard<std::mutex> lock(num_queries_mu_);
|
|
|
|
num_queries_++;
|
|
|
|
}
|
|
|
|
|
|
|
|
long QpsGauge::Get() {
|
|
|
|
std::lock_guard<std::mutex> lock(num_queries_mu_);
|
|
|
|
gpr_timespec time_diff =
|
|
|
|
gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), start_time_);
|
|
|
|
long duration_secs = time_diff.tv_sec > 0 ? time_diff.tv_sec : 1;
|
|
|
|
return num_queries_ / duration_secs;
|
|
|
|
}
|
|
|
|
|
|
|
|
grpc::Status MetricsServiceImpl::GetAllGauges(
|
|
|
|
ServerContext* context, const EmptyMessage* request,
|
|
|
|
ServerWriter<GaugeResponse>* writer) {
|
|
|
|
gpr_log(GPR_DEBUG, "GetAllGauges called");
|
|
|
|
|
|
|
|
std::lock_guard<std::mutex> lock(mu_);
|
|
|
|
for (auto it = qps_gauges_.begin(); it != qps_gauges_.end(); it++) {
|
|
|
|
GaugeResponse resp;
|
|
|
|
resp.set_name(it->first); // Gauge name
|
|
|
|
resp.set_long_value(it->second->Get()); // Gauge value
|
|
|
|
writer->Write(resp);
|
|
|
|
}
|
|
|
|
|
|
|
|
return Status::OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
grpc::Status MetricsServiceImpl::GetGauge(ServerContext* context,
|
|
|
|
const GaugeRequest* request,
|
|
|
|
GaugeResponse* response) {
|
|
|
|
std::lock_guard<std::mutex> lock(mu_);
|
|
|
|
|
|
|
|
const auto it = qps_gauges_.find(request->name());
|
|
|
|
if (it != qps_gauges_.end()) {
|
|
|
|
response->set_name(it->first);
|
|
|
|
response->set_long_value(it->second->Get());
|
|
|
|
}
|
|
|
|
|
|
|
|
return Status::OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::shared_ptr<QpsGauge> MetricsServiceImpl::CreateQpsGauge(
|
|
|
|
const grpc::string& name, bool* already_present) {
|
|
|
|
std::lock_guard<std::mutex> lock(mu_);
|
|
|
|
|
|
|
|
std::shared_ptr<QpsGauge> qps_gauge(new QpsGauge());
|
|
|
|
const auto p = qps_gauges_.insert(std::make_pair(name, qps_gauge));
|
|
|
|
|
|
|
|
// p.first is an iterator pointing to <name, shared_ptr<QpsGauge>> pair.
|
|
|
|
// p.second is a boolean which is set to 'true' if the QpsGauge is
|
|
|
|
// successfully inserted in the guages_ map and 'false' if it is already
|
|
|
|
// present in the map
|
|
|
|
*already_present = !p.second;
|
|
|
|
return p.first->second;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Starts the metrics server and returns the grpc::Server instance. Call Wait()
|
|
|
|
// on the returned server instance.
|
|
|
|
std::unique_ptr<grpc::Server> MetricsServiceImpl::StartServer(int port) {
|
|
|
|
gpr_log(GPR_INFO, "Building metrics server..");
|
|
|
|
|
|
|
|
const grpc::string address = "0.0.0.0:" + grpc::to_string(port);
|
|
|
|
|
|
|
|
ServerBuilder builder;
|
|
|
|
builder.AddListeningPort(address, grpc::InsecureServerCredentials());
|
|
|
|
builder.RegisterService(this);
|
|
|
|
|
|
|
|
std::unique_ptr<grpc::Server> server(builder.BuildAndStart());
|
|
|
|
gpr_log(GPR_INFO, "Metrics server %s started. Ready to receive requests..",
|
|
|
|
address.c_str());
|
|
|
|
|
|
|
|
return server;
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace testing
|
|
|
|
} // namespace grpc
|