298 lines
9.1 KiB
Go
298 lines
9.1 KiB
Go
/*
|
|
*
|
|
* Copyright 2016, 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.
|
|
*
|
|
*/
|
|
|
|
// client starts an interop client to do stress test and a metrics server to report qps.
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"math/rand"
|
|
"net"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"golang.org/x/net/context"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/grpclog"
|
|
"google.golang.org/grpc/interop"
|
|
testpb "google.golang.org/grpc/interop/grpc_testing"
|
|
metricspb "google.golang.org/grpc/stress/grpc_testing"
|
|
)
|
|
|
|
var (
|
|
serverAddresses = flag.String("server_addresses", "localhost:8080", "a list of server addresses")
|
|
testCases = flag.String("test_cases", "", "a list of test cases along with the relative weights")
|
|
testDurationSecs = flag.Int("test_duration_secs", -1, "test duration in seconds")
|
|
numChannelsPerServer = flag.Int("num_channels_per_server", 1, "Number of channels (i.e connections) to each server")
|
|
numStubsPerChannel = flag.Int("num_stubs_per_channel", 1, "Number of client stubs per each connection to server")
|
|
metricsPort = flag.Int("metrics_port", 8081, "The port at which the stress client exposes QPS metrics")
|
|
)
|
|
|
|
// testCaseWithWeight contains the test case type and its weight.
|
|
type testCaseWithWeight struct {
|
|
name string
|
|
weight int
|
|
}
|
|
|
|
// parseTestCases converts test case string to a list of struct testCaseWithWeight.
|
|
func parseTestCases(testCaseString string) []testCaseWithWeight {
|
|
testCaseStrings := strings.Split(testCaseString, ",")
|
|
testCases := make([]testCaseWithWeight, len(testCaseStrings))
|
|
for i, str := range testCaseStrings {
|
|
testCase := strings.Split(str, ":")
|
|
if len(testCase) != 2 {
|
|
panic(fmt.Sprintf("invalid test case with weight: %s", str))
|
|
}
|
|
// Check if test case is supported.
|
|
switch testCase[0] {
|
|
case
|
|
"empty_unary",
|
|
"large_unary",
|
|
"client_streaming",
|
|
"server_streaming",
|
|
"empty_stream":
|
|
default:
|
|
panic(fmt.Sprintf("unknown test type: %s", testCase[0]))
|
|
}
|
|
testCases[i].name = testCase[0]
|
|
w, err := strconv.Atoi(testCase[1])
|
|
if err != nil {
|
|
panic(fmt.Sprintf("%v", err))
|
|
}
|
|
testCases[i].weight = w
|
|
}
|
|
return testCases
|
|
}
|
|
|
|
// weightedRandomTestSelector defines a weighted random selector for test case types.
|
|
type weightedRandomTestSelector struct {
|
|
tests []testCaseWithWeight
|
|
totalWeight int
|
|
}
|
|
|
|
// newWeightedRandomTestSelector constructs a weightedRandomTestSelector with the given list of testCaseWithWeight.
|
|
func newWeightedRandomTestSelector(tests []testCaseWithWeight) *weightedRandomTestSelector {
|
|
var totalWeight int
|
|
for _, t := range tests {
|
|
totalWeight += t.weight
|
|
}
|
|
rand.Seed(time.Now().UnixNano())
|
|
return &weightedRandomTestSelector{tests, totalWeight}
|
|
}
|
|
|
|
func (selector weightedRandomTestSelector) getNextTest() string {
|
|
random := rand.Intn(selector.totalWeight)
|
|
var weightSofar int
|
|
for _, test := range selector.tests {
|
|
weightSofar += test.weight
|
|
if random < weightSofar {
|
|
return test.name
|
|
}
|
|
}
|
|
panic("no test case selected by weightedRandomTestSelector")
|
|
}
|
|
|
|
// gauge stores the qps of one interop client (one stub).
|
|
type gauge struct {
|
|
mutex sync.RWMutex
|
|
val int64
|
|
}
|
|
|
|
func (g *gauge) set(v int64) {
|
|
g.mutex.Lock()
|
|
defer g.mutex.Unlock()
|
|
g.val = v
|
|
}
|
|
|
|
func (g *gauge) get() int64 {
|
|
g.mutex.RLock()
|
|
defer g.mutex.RUnlock()
|
|
return g.val
|
|
}
|
|
|
|
// server implements metrics server functions.
|
|
type server struct {
|
|
mutex sync.RWMutex
|
|
// gauges is a map from /stress_test/server_<n>/channel_<n>/stub_<n>/qps to its qps gauge.
|
|
gauges map[string]*gauge
|
|
}
|
|
|
|
// newMetricsServer returns a new metrics server.
|
|
func newMetricsServer() *server {
|
|
return &server{gauges: make(map[string]*gauge)}
|
|
}
|
|
|
|
// GetAllGauges returns all gauges.
|
|
func (s *server) GetAllGauges(in *metricspb.EmptyMessage, stream metricspb.MetricsService_GetAllGaugesServer) error {
|
|
s.mutex.RLock()
|
|
defer s.mutex.RUnlock()
|
|
|
|
for name, gauge := range s.gauges {
|
|
if err := stream.Send(&metricspb.GaugeResponse{Name: name, Value: &metricspb.GaugeResponse_LongValue{LongValue: gauge.get()}}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// GetGauge returns the gauge for the given name.
|
|
func (s *server) GetGauge(ctx context.Context, in *metricspb.GaugeRequest) (*metricspb.GaugeResponse, error) {
|
|
s.mutex.RLock()
|
|
defer s.mutex.RUnlock()
|
|
|
|
if g, ok := s.gauges[in.Name]; ok {
|
|
return &metricspb.GaugeResponse{Name: in.Name, Value: &metricspb.GaugeResponse_LongValue{LongValue: g.get()}}, nil
|
|
}
|
|
return nil, grpc.Errorf(codes.InvalidArgument, "gauge with name %s not found", in.Name)
|
|
}
|
|
|
|
// createGauge creates a guage using the given name in metrics server.
|
|
func (s *server) createGauge(name string) *gauge {
|
|
s.mutex.Lock()
|
|
defer s.mutex.Unlock()
|
|
|
|
if _, ok := s.gauges[name]; ok {
|
|
// gauge already exists.
|
|
panic(fmt.Sprintf("gauge %s already exists", name))
|
|
}
|
|
var g gauge
|
|
s.gauges[name] = &g
|
|
return &g
|
|
}
|
|
|
|
func startServer(server *server, port int) {
|
|
lis, err := net.Listen("tcp", ":"+strconv.Itoa(port))
|
|
if err != nil {
|
|
grpclog.Fatalf("failed to listen: %v", err)
|
|
}
|
|
|
|
s := grpc.NewServer()
|
|
metricspb.RegisterMetricsServiceServer(s, server)
|
|
s.Serve(lis)
|
|
|
|
}
|
|
|
|
// performRPCs uses weightedRandomTestSelector to select test case and runs the tests.
|
|
func performRPCs(gauge *gauge, conn *grpc.ClientConn, selector *weightedRandomTestSelector, stop <-chan bool) {
|
|
client := testpb.NewTestServiceClient(conn)
|
|
var numCalls int64
|
|
startTime := time.Now()
|
|
for {
|
|
done := make(chan bool, 1)
|
|
go func() {
|
|
test := selector.getNextTest()
|
|
switch test {
|
|
case "empty_unary":
|
|
interop.DoEmptyUnaryCall(client)
|
|
case "large_unary":
|
|
interop.DoLargeUnaryCall(client)
|
|
case "client_streaming":
|
|
interop.DoClientStreaming(client)
|
|
case "server_streaming":
|
|
interop.DoServerStreaming(client)
|
|
case "empty_stream":
|
|
interop.DoEmptyStream(client)
|
|
}
|
|
done <- true
|
|
}()
|
|
select {
|
|
case <-stop:
|
|
return
|
|
case <-done:
|
|
numCalls++
|
|
gauge.set(int64(float64(numCalls) / time.Since(startTime).Seconds()))
|
|
}
|
|
}
|
|
}
|
|
|
|
func logParameterInfo(addresses []string, tests []testCaseWithWeight) {
|
|
grpclog.Printf("server_addresses: %s", *serverAddresses)
|
|
grpclog.Printf("test_cases: %s", *testCases)
|
|
grpclog.Printf("test_duration-secs: %d", *testDurationSecs)
|
|
grpclog.Printf("num_channels_per_server: %d", *numChannelsPerServer)
|
|
grpclog.Printf("num_stubs_per_channel: %d", *numStubsPerChannel)
|
|
grpclog.Printf("metrics_port: %d", *metricsPort)
|
|
|
|
grpclog.Println("addresses:")
|
|
for i, addr := range addresses {
|
|
grpclog.Printf("%d. %s\n", i+1, addr)
|
|
}
|
|
grpclog.Println("tests:")
|
|
for i, test := range tests {
|
|
grpclog.Printf("%d. %v\n", i+1, test)
|
|
}
|
|
}
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
addresses := strings.Split(*serverAddresses, ",")
|
|
tests := parseTestCases(*testCases)
|
|
logParameterInfo(addresses, tests)
|
|
testSelector := newWeightedRandomTestSelector(tests)
|
|
metricsServer := newMetricsServer()
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(addresses) * *numChannelsPerServer * *numStubsPerChannel)
|
|
stop := make(chan bool)
|
|
|
|
for serverIndex, address := range addresses {
|
|
for connIndex := 0; connIndex < *numChannelsPerServer; connIndex++ {
|
|
conn, err := grpc.Dial(address, grpc.WithInsecure())
|
|
if err != nil {
|
|
grpclog.Fatalf("Fail to dial: %v", err)
|
|
}
|
|
defer conn.Close()
|
|
for clientIndex := 0; clientIndex < *numStubsPerChannel; clientIndex++ {
|
|
name := fmt.Sprintf("/stress_test/server_%d/channel_%d/stub_%d/qps", serverIndex+1, connIndex+1, clientIndex+1)
|
|
go func() {
|
|
defer wg.Done()
|
|
g := metricsServer.createGauge(name)
|
|
performRPCs(g, conn, testSelector, stop)
|
|
}()
|
|
}
|
|
|
|
}
|
|
}
|
|
go startServer(metricsServer, *metricsPort)
|
|
if *testDurationSecs > 0 {
|
|
time.Sleep(time.Duration(*testDurationSecs) * time.Second)
|
|
close(stop)
|
|
}
|
|
wg.Wait()
|
|
grpclog.Printf(" ===== ALL DONE ===== ")
|
|
|
|
}
|