mirror of
https://github.com/minio/minio.git
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a17f14f73a
epoll contention on TCP causes latency build-up when we have high volume ingress. This PR is an attempt to relieve this pressure. upstream issue https://github.com/golang/go/issues/65064 It seems to be a deeper problem; haven't yet tried the fix provide in this issue, but however this change without changing the compiler helps. Of course, this is a workaround for now, hoping for a more comprehensive fix from Go runtime.
1330 lines
36 KiB
Go
1330 lines
36 KiB
Go
// Copyright (c) 2015-2023 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package grid
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"os"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/minio/minio/internal/logger/target/testlogger"
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)
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func TestSingleRoundtrip(t *testing.T) {
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defer testlogger.T.SetLogTB(t)()
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errFatal := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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grid, err := SetupTestGrid(2)
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errFatal(err)
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remoteHost := grid.Hosts[1]
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local := grid.Managers[0]
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// 1: Echo
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errFatal(local.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("1: server payload: ", len(payload), "bytes.")
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return append([]byte{}, payload...), nil
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}))
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// 2: Return as error
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errFatal(local.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("2: server payload: ", len(payload), "bytes.")
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err := RemoteErr(payload)
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return nil, &err
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}))
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remote := grid.Managers[1]
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// 1: Echo
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errFatal(remote.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("1: server payload: ", len(payload), "bytes.")
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return append([]byte{}, payload...), nil
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}))
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// 2: Return as error
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errFatal(remote.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("2: server payload: ", len(payload), "bytes.")
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err := RemoteErr(payload)
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return nil, &err
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}))
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// local to remote
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remoteConn := local.Connection(remoteHost)
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remoteConn.WaitForConnect(context.Background())
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defer testlogger.T.SetErrorTB(t)()
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t.Run("localToRemote", func(t *testing.T) {
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const testPayload = "Hello Grid World!"
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start := time.Now()
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resp, err := remoteConn.Request(context.Background(), handlerTest, []byte(testPayload))
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errFatal(err)
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if string(resp) != testPayload {
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t.Errorf("want %q, got %q", testPayload, string(resp))
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}
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t.Log("Roundtrip:", time.Since(start))
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})
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t.Run("localToRemoteErr", func(t *testing.T) {
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const testPayload = "Hello Grid World!"
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start := time.Now()
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resp, err := remoteConn.Request(context.Background(), handlerTest2, []byte(testPayload))
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t.Log("Roundtrip:", time.Since(start))
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if len(resp) != 0 {
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t.Errorf("want nil, got %q", string(resp))
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}
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if err != RemoteErr(testPayload) {
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t.Errorf("want error %v(%T), got %v(%T)", RemoteErr(testPayload), RemoteErr(testPayload), err, err)
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}
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t.Log("Roundtrip:", time.Since(start))
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})
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t.Run("localToRemoteHuge", func(t *testing.T) {
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testPayload := bytes.Repeat([]byte("?"), 1<<20)
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start := time.Now()
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resp, err := remoteConn.Request(context.Background(), handlerTest, testPayload)
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errFatal(err)
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if string(resp) != string(testPayload) {
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t.Errorf("want %q, got %q", testPayload, string(resp))
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}
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t.Log("Roundtrip:", time.Since(start))
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})
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t.Run("localToRemoteErrHuge", func(t *testing.T) {
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testPayload := bytes.Repeat([]byte("!"), 1<<10)
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start := time.Now()
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resp, err := remoteConn.Request(context.Background(), handlerTest2, testPayload)
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if len(resp) != 0 {
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t.Errorf("want nil, got %q", string(resp))
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}
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if err != RemoteErr(testPayload) {
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t.Errorf("want error %v(%T), got %v(%T)", RemoteErr(testPayload), RemoteErr(testPayload), err, err)
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}
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t.Log("Roundtrip:", time.Since(start))
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})
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}
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func TestSingleRoundtripNotReady(t *testing.T) {
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defer testlogger.T.SetLogTB(t)()
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errFatal := func(t testing.TB, err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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grid, err := SetupTestGrid(2)
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errFatal(t, err)
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remoteHost := grid.Hosts[1]
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local := grid.Managers[0]
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// 1: Echo
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errFatal(t, local.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("1: server payload: ", len(payload), "bytes.")
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return append([]byte{}, payload...), nil
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}))
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// 2: Return as error
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errFatal(t, local.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
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t.Log("2: server payload: ", len(payload), "bytes.")
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err := RemoteErr(payload)
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return nil, &err
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}))
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// Do not register remote handlers
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// local to remote
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remoteConn := local.Connection(remoteHost)
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remoteConn.WaitForConnect(context.Background())
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defer testlogger.T.SetErrorTB(t)()
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t.Run("localToRemote", func(t *testing.T) {
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const testPayload = "Hello Grid World!"
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// Single requests should have remote errors.
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_, err := remoteConn.Request(context.Background(), handlerTest, []byte(testPayload))
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if _, ok := err.(*RemoteErr); !ok {
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t.Fatalf("Unexpected error: %v, %T", err, err)
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}
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// Streams should not be able to set up until registered.
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// Thus, the error is a local error.
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_, err = remoteConn.NewStream(context.Background(), handlerTest, []byte(testPayload))
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if !errors.Is(err, ErrUnknownHandler) {
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t.Fatalf("Unexpected error: %v, %T", err, err)
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}
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})
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}
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func TestSingleRoundtripGenerics(t *testing.T) {
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defer testlogger.T.SetLogTB(t)()
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errFatal := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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grid, err := SetupTestGrid(2)
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errFatal(err)
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remoteHost := grid.Hosts[1]
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local := grid.Managers[0]
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remote := grid.Managers[1]
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// 1: Echo
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h1 := NewSingleHandler[*testRequest, *testResponse](handlerTest, func() *testRequest {
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return &testRequest{}
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}, func() *testResponse {
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return &testResponse{}
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})
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// Handles incoming requests, returns a response
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handler1 := func(req *testRequest) (resp *testResponse, err *RemoteErr) {
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resp = h1.NewResponse()
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*resp = testResponse{
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OrgNum: req.Num,
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OrgString: req.String,
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Embedded: *req,
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}
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return resp, nil
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}
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// Return error
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h2 := NewSingleHandler[*testRequest, *testResponse](handlerTest2, newTestRequest, newTestResponse)
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handler2 := func(req *testRequest) (resp *testResponse, err *RemoteErr) {
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r := RemoteErr(req.String)
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return nil, &r
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}
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errFatal(h1.Register(local, handler1))
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errFatal(h2.Register(local, handler2))
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errFatal(h1.Register(remote, handler1))
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errFatal(h2.Register(remote, handler2))
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// local to remote connection
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remoteConn := local.Connection(remoteHost)
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const testPayload = "Hello Grid World!"
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start := time.Now()
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req := testRequest{Num: 1, String: testPayload}
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resp, err := h1.Call(context.Background(), remoteConn, &req)
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errFatal(err)
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if resp.OrgString != testPayload {
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t.Errorf("want %q, got %q", testPayload, resp.OrgString)
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}
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t.Log("Roundtrip:", time.Since(start))
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h1.PutResponse(resp)
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start = time.Now()
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resp, err = h2.Call(context.Background(), remoteConn, &testRequest{Num: 1, String: testPayload})
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t.Log("Roundtrip:", time.Since(start))
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if err != RemoteErr(testPayload) {
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t.Errorf("want error %v(%T), got %v(%T)", RemoteErr(testPayload), RemoteErr(testPayload), err, err)
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}
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if resp != nil {
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t.Errorf("want nil, got %q", resp)
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}
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h2.PutResponse(resp)
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t.Log("Roundtrip:", time.Since(start))
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}
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func TestSingleRoundtripGenericsRecycle(t *testing.T) {
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defer testlogger.T.SetLogTB(t)()
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errFatal := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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grid, err := SetupTestGrid(2)
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errFatal(err)
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remoteHost := grid.Hosts[1]
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local := grid.Managers[0]
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remote := grid.Managers[1]
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// 1: Echo
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h1 := NewSingleHandler[*MSS, *MSS](handlerTest, NewMSS, NewMSS)
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// Handles incoming requests, returns a response
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handler1 := func(req *MSS) (resp *MSS, err *RemoteErr) {
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resp = h1.NewResponse()
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for k, v := range *req {
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(*resp)[k] = v
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}
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return resp, nil
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}
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// Return error
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h2 := NewSingleHandler[*MSS, *MSS](handlerTest2, NewMSS, NewMSS)
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handler2 := func(req *MSS) (resp *MSS, err *RemoteErr) {
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defer req.Recycle()
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r := RemoteErr(req.Get("err"))
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return nil, &r
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}
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errFatal(h1.Register(local, handler1))
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errFatal(h2.Register(local, handler2))
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errFatal(h1.Register(remote, handler1))
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errFatal(h2.Register(remote, handler2))
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// local to remote connection
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remoteConn := local.Connection(remoteHost)
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const testPayload = "Hello Grid World!"
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start := time.Now()
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req := NewMSSWith(map[string]string{"test": testPayload})
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resp, err := h1.Call(context.Background(), remoteConn, req)
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errFatal(err)
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if resp.Get("test") != testPayload {
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t.Errorf("want %q, got %q", testPayload, resp.Get("test"))
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}
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t.Log("Roundtrip:", time.Since(start))
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h1.PutResponse(resp)
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start = time.Now()
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resp, err = h2.Call(context.Background(), remoteConn, NewMSSWith(map[string]string{"err": testPayload}))
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t.Log("Roundtrip:", time.Since(start))
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if err != RemoteErr(testPayload) {
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t.Errorf("want error %v(%T), got %v(%T)", RemoteErr(testPayload), RemoteErr(testPayload), err, err)
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}
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if resp != nil {
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t.Errorf("want nil, got %q", resp)
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}
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t.Log("Roundtrip:", time.Since(start))
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h2.PutResponse(resp)
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}
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func TestStreamSuite(t *testing.T) {
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defer testlogger.T.SetErrorTB(t)()
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errFatal := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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grid, err := SetupTestGrid(2)
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errFatal(err)
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t.Cleanup(grid.Cleanup)
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local := grid.Managers[0]
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localHost := grid.Hosts[0]
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remote := grid.Managers[1]
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remoteHost := grid.Hosts[1]
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connLocalToRemote := local.Connection(remoteHost)
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connRemoteLocal := remote.Connection(localHost)
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t.Run("testStreamRoundtrip", func(t *testing.T) {
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defer timeout(5 * time.Second)()
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testStreamRoundtrip(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testStreamCancel", func(t *testing.T) {
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defer timeout(5 * time.Second)()
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testStreamCancel(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testStreamDeadline", func(t *testing.T) {
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defer timeout(5 * time.Second)()
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testStreamDeadline(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerOutCongestion", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerOutCongestion(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerInCongestion", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerInCongestion(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testGenericsStreamRoundtrip", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testGenericsStreamRoundtrip(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testGenericsStreamRoundtripSubroute", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testGenericsStreamRoundtripSubroute(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamResponseBlocked", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamResponseBlocked(t, local, remote)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamOnewayNoPing", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamNoPing(t, local, remote, 0)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamTwowayNoPing", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamNoPing(t, local, remote, 1)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamTwowayPing", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 1, false, false)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamTwowayPingReq", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 1, false, true)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamTwowayPingResp", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 1, true, false)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamTwowayPingReqResp", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 1, true, true)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamOnewayPing", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 0, false, true)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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t.Run("testServerStreamOnewayPingUnblocked", func(t *testing.T) {
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defer timeout(1 * time.Minute)()
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testServerStreamPingRunning(t, local, remote, 0, false, false)
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assertNoActive(t, connRemoteLocal)
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assertNoActive(t, connLocalToRemote)
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})
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}
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func testStreamRoundtrip(t *testing.T, local, remote *Manager) {
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defer testlogger.T.SetErrorTB(t)()
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defer timeout(5 * time.Second)()
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errFatal := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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// We fake a local and remote server.
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remoteHost := remote.HostName()
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// 1: Echo
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register := func(manager *Manager) {
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errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
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Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
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for in := range request {
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b := append([]byte{}, payload...)
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b = append(b, in...)
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resp <- b
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}
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t.Log(GetCaller(ctx).Name, "Handler done")
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return nil
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},
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OutCapacity: 1,
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InCapacity: 1,
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}))
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// 2: Return as error
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errFatal(manager.RegisterStreamingHandler(handlerTest2, StreamHandler{
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Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
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for in := range request {
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t.Log("2: Got err request", string(in))
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err := RemoteErr(append(payload, in...))
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return &err
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}
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return nil
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},
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OutCapacity: 1,
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InCapacity: 1,
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}))
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}
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register(local)
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register(remote)
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// local to remote
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remoteConn := local.Connection(remoteHost)
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|
const testPayload = "Hello Grid World!"
|
|
|
|
start := time.Now()
|
|
stream, err := remoteConn.NewStream(context.Background(), handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
var n int
|
|
stream.Requests <- []byte(strconv.Itoa(n))
|
|
for resp := range stream.responses {
|
|
errFatal(resp.Err)
|
|
t.Logf("got resp: %+v", string(resp.Msg))
|
|
if string(resp.Msg) != testPayload+strconv.Itoa(n) {
|
|
t.Errorf("want %q, got %q", testPayload+strconv.Itoa(n), string(resp.Msg))
|
|
}
|
|
if n == 10 {
|
|
close(stream.Requests)
|
|
continue
|
|
}
|
|
n++
|
|
t.Log("sending new client request")
|
|
stream.Requests <- []byte(strconv.Itoa(n))
|
|
}
|
|
t.Log("EOF. 10 Roundtrips:", time.Since(start))
|
|
}
|
|
|
|
func testStreamCancel(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
serverCanceled := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
<-ctx.Done()
|
|
serverCanceled <- struct{}{}
|
|
fmt.Println(GetCaller(ctx).Name, "Server Context canceled")
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 0,
|
|
}))
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest2, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
<-ctx.Done()
|
|
serverCanceled <- struct{}{}
|
|
fmt.Println(GetCaller(ctx).Name, "Server Context canceled")
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 1,
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
// local to remote
|
|
testHandler := func(t *testing.T, handler HandlerID, sendReq bool) {
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
st, err := remoteConn.NewStream(ctx, handler, []byte(testPayload))
|
|
errFatal(err)
|
|
clientCanceled := make(chan time.Time, 1)
|
|
err = nil
|
|
go func(t *testing.T) {
|
|
for resp := range st.responses {
|
|
t.Log("got resp:", string(resp.Msg), "err:", resp.Err)
|
|
if err != nil {
|
|
t.Log("ERROR: got second error:", resp.Err, "first:", err)
|
|
continue
|
|
}
|
|
err = resp.Err
|
|
}
|
|
t.Log("Client Context canceled. err state:", err)
|
|
clientCanceled <- time.Now()
|
|
}(t)
|
|
start := time.Now()
|
|
if st.Requests != nil {
|
|
defer close(st.Requests)
|
|
}
|
|
// Fill up queue.
|
|
for sendReq {
|
|
select {
|
|
case st.Requests <- []byte("Hello"):
|
|
time.Sleep(10 * time.Millisecond)
|
|
default:
|
|
sendReq = false
|
|
}
|
|
}
|
|
cancel()
|
|
<-serverCanceled
|
|
t.Log("server cancel time:", time.Since(start))
|
|
clientEnd := <-clientCanceled
|
|
if !errors.Is(err, context.Canceled) {
|
|
t.Error("expected context.Canceled, got", err)
|
|
}
|
|
t.Log("client after", time.Since(clientEnd))
|
|
}
|
|
// local to remote, unbuffered
|
|
t.Run("unbuffered", func(t *testing.T) {
|
|
testHandler(t, handlerTest, false)
|
|
})
|
|
t.Run("buffered", func(t *testing.T) {
|
|
testHandler(t, handlerTest2, false)
|
|
})
|
|
t.Run("buffered", func(t *testing.T) {
|
|
testHandler(t, handlerTest2, true)
|
|
})
|
|
}
|
|
|
|
// testStreamDeadline will test if server
|
|
func testStreamDeadline(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
const wantDL = 50 * time.Millisecond
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
serverCanceled := make(chan time.Duration, 1)
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
started := time.Now()
|
|
dl, _ := ctx.Deadline()
|
|
if testing.Verbose() {
|
|
fmt.Println(GetCaller(ctx).Name, "Server deadline:", time.Until(dl))
|
|
}
|
|
<-ctx.Done()
|
|
serverCanceled <- time.Since(started)
|
|
if testing.Verbose() {
|
|
fmt.Println(GetCaller(ctx).Name, "Server Context canceled with", ctx.Err(), "after", time.Since(started))
|
|
}
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 0,
|
|
}))
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest2, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
started := time.Now()
|
|
dl, _ := ctx.Deadline()
|
|
if testing.Verbose() {
|
|
fmt.Println(GetCaller(ctx).Name, "Server deadline:", time.Until(dl))
|
|
}
|
|
<-ctx.Done()
|
|
serverCanceled <- time.Since(started)
|
|
if testing.Verbose() {
|
|
fmt.Println(GetCaller(ctx).Name, "Server Context canceled with", ctx.Err(), "after", time.Since(started))
|
|
}
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 1,
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
// Double remote DL
|
|
local.debugMsg(debugAddToDeadline, wantDL)
|
|
defer local.debugMsg(debugAddToDeadline, time.Duration(0))
|
|
remote.debugMsg(debugAddToDeadline, wantDL)
|
|
defer remote.debugMsg(debugAddToDeadline, time.Duration(0))
|
|
|
|
testHandler := func(t *testing.T, handler HandlerID) {
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), wantDL)
|
|
defer cancel()
|
|
st, err := remoteConn.NewStream(ctx, handler, []byte(testPayload))
|
|
errFatal(err)
|
|
clientCanceled := make(chan time.Duration, 1)
|
|
go func() {
|
|
started := time.Now()
|
|
for resp := range st.responses {
|
|
err = resp.Err
|
|
}
|
|
clientCanceled <- time.Since(started)
|
|
}()
|
|
serverEnd := <-serverCanceled
|
|
clientEnd := <-clientCanceled
|
|
t.Log("server cancel time:", serverEnd)
|
|
t.Log("client cancel time:", clientEnd)
|
|
if !errors.Is(err, context.DeadlineExceeded) {
|
|
t.Error("expected context.DeadlineExceeded, got", err)
|
|
}
|
|
}
|
|
// local to remote, unbuffered
|
|
t.Run("unbuffered", func(t *testing.T) {
|
|
testHandler(t, handlerTest)
|
|
})
|
|
|
|
t.Run("buffered", func(t *testing.T) {
|
|
testHandler(t, handlerTest2)
|
|
})
|
|
}
|
|
|
|
func testServerOutCongestion(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
serverSent := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
// Send many responses.
|
|
// Test that this doesn't block.
|
|
for i := byte(0); i < 100; i++ {
|
|
select {
|
|
case resp <- []byte{i}:
|
|
// ok
|
|
case <-ctx.Done():
|
|
return NewRemoteErr(ctx.Err())
|
|
}
|
|
if i == 0 {
|
|
close(serverSent)
|
|
}
|
|
}
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 0,
|
|
}))
|
|
errFatal(manager.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
|
|
// Simple roundtrip
|
|
return append([]byte{}, payload...), nil
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
|
|
defer cancel()
|
|
st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
|
|
// Wait for the server to send the first response.
|
|
<-serverSent
|
|
|
|
// Now do 100 other requests to ensure that the server doesn't block.
|
|
for i := 0; i < 100; i++ {
|
|
_, err := remoteConn.Request(ctx, handlerTest2, []byte(testPayload))
|
|
errFatal(err)
|
|
}
|
|
// Drain responses
|
|
got := 0
|
|
for resp := range st.responses {
|
|
// t.Log("got response", resp)
|
|
errFatal(resp.Err)
|
|
if resp.Msg[0] != byte(got) {
|
|
t.Error("expected response", got, "got", resp.Msg[0])
|
|
}
|
|
got++
|
|
}
|
|
if got != 100 {
|
|
t.Error("expected 100 responses, got", got)
|
|
}
|
|
}
|
|
|
|
func testServerInCongestion(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
processHandler := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
// Block incoming requests.
|
|
var n byte
|
|
<-processHandler
|
|
for {
|
|
select {
|
|
case in, ok := <-request:
|
|
if !ok {
|
|
return nil
|
|
}
|
|
if in[0] != n {
|
|
return NewRemoteErrString(fmt.Sprintf("expected incoming %d, got %d", n, in[0]))
|
|
}
|
|
n++
|
|
resp <- append([]byte{}, in...)
|
|
case <-ctx.Done():
|
|
return NewRemoteErr(ctx.Err())
|
|
}
|
|
}
|
|
},
|
|
OutCapacity: 5,
|
|
InCapacity: 5,
|
|
}))
|
|
errFatal(manager.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
|
|
// Simple roundtrip
|
|
return append([]byte{}, payload...), nil
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
|
|
defer cancel()
|
|
st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
|
|
// Start sending requests.
|
|
go func() {
|
|
for i := byte(0); i < 100; i++ {
|
|
st.Requests <- []byte{i}
|
|
}
|
|
close(st.Requests)
|
|
}()
|
|
// Now do 100 other requests to ensure that the server doesn't block.
|
|
for i := 0; i < 100; i++ {
|
|
_, err := remoteConn.Request(ctx, handlerTest2, []byte(testPayload))
|
|
errFatal(err)
|
|
}
|
|
// Start processing requests.
|
|
close(processHandler)
|
|
|
|
// Drain responses
|
|
got := 0
|
|
for resp := range st.responses {
|
|
// t.Log("got response", resp)
|
|
errFatal(resp.Err)
|
|
if resp.Msg[0] != byte(got) {
|
|
t.Error("expected response", got, "got", resp.Msg[0])
|
|
}
|
|
got++
|
|
}
|
|
if got != 100 {
|
|
t.Error("expected 100 responses, got", got)
|
|
}
|
|
}
|
|
|
|
func testGenericsStreamRoundtrip(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
defer timeout(5 * time.Second)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
handler := NewStream[*testRequest, *testRequest, *testResponse](handlerTest, newTestRequest, newTestRequest, newTestResponse)
|
|
handler.InCapacity = 1
|
|
handler.OutCapacity = 1
|
|
const payloads = 10
|
|
|
|
// 1: Echo
|
|
register := func(manager *Manager) {
|
|
errFatal(handler.Register(manager, func(ctx context.Context, pp *testRequest, in <-chan *testRequest, out chan<- *testResponse) *RemoteErr {
|
|
n := 0
|
|
for i := range in {
|
|
if n > payloads {
|
|
panic("too many requests")
|
|
}
|
|
|
|
// t.Log("Got request:", *i)
|
|
out <- &testResponse{
|
|
OrgNum: i.Num + pp.Num,
|
|
OrgString: pp.String + i.String,
|
|
Embedded: *i,
|
|
}
|
|
n++
|
|
}
|
|
return nil
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
// local to remote
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
start := time.Now()
|
|
stream, err := handler.Call(context.Background(), remoteConn, &testRequest{Num: 1, String: testPayload})
|
|
errFatal(err)
|
|
go func() {
|
|
defer close(stream.Requests)
|
|
for i := 0; i < payloads; i++ {
|
|
// t.Log("sending new client request")
|
|
stream.Requests <- &testRequest{Num: i, String: testPayload}
|
|
}
|
|
}()
|
|
var n int
|
|
err = stream.Results(func(resp *testResponse) error {
|
|
const wantString = testPayload + testPayload
|
|
if resp.OrgString != testPayload+testPayload {
|
|
t.Errorf("want %q, got %q", wantString, resp.OrgString)
|
|
}
|
|
if resp.OrgNum != n+1 {
|
|
t.Errorf("want %d, got %d", n+1, resp.OrgNum)
|
|
}
|
|
handler.PutResponse(resp)
|
|
n++
|
|
return nil
|
|
})
|
|
errFatal(err)
|
|
t.Log("EOF.", payloads, " Roundtrips:", time.Since(start))
|
|
}
|
|
|
|
func testGenericsStreamRoundtripSubroute(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
defer timeout(5 * time.Second)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
handler := NewStream[*testRequest, *testRequest, *testResponse](handlerTest, newTestRequest, newTestRequest, newTestResponse)
|
|
handler.InCapacity = 1
|
|
handler.OutCapacity = 1
|
|
const payloads = 10
|
|
|
|
// 1: Echo
|
|
register := func(manager *Manager) {
|
|
errFatal(handler.Register(manager, func(ctx context.Context, pp *testRequest, in <-chan *testRequest, out chan<- *testResponse) *RemoteErr {
|
|
sub := GetSubroute(ctx)
|
|
if sub != "subroute/1" {
|
|
t.Fatal("expected subroute/1, got", sub)
|
|
}
|
|
n := 0
|
|
for i := range in {
|
|
if n > payloads {
|
|
panic("too many requests")
|
|
}
|
|
|
|
// t.Log("Got request:", *i)
|
|
out <- &testResponse{
|
|
OrgNum: i.Num + pp.Num,
|
|
OrgString: pp.String + i.String,
|
|
Embedded: *i,
|
|
}
|
|
n++
|
|
}
|
|
return nil
|
|
}, "subroute", "1"))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
// local to remote
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
// Add subroute
|
|
remoteSub := remoteConn.Subroute(strings.Join([]string{"subroute", "1"}, "/"))
|
|
|
|
start := time.Now()
|
|
stream, err := handler.Call(context.Background(), remoteSub, &testRequest{Num: 1, String: testPayload})
|
|
errFatal(err)
|
|
go func() {
|
|
defer close(stream.Requests)
|
|
for i := 0; i < payloads; i++ {
|
|
// t.Log("sending new client request")
|
|
stream.Requests <- &testRequest{Num: i, String: testPayload}
|
|
}
|
|
}()
|
|
var n int
|
|
err = stream.Results(func(resp *testResponse) error {
|
|
// t.Logf("got resp: %+v", *resp.Msg)
|
|
const wantString = testPayload + testPayload
|
|
if resp.OrgString != testPayload+testPayload {
|
|
t.Errorf("want %q, got %q", wantString, resp.OrgString)
|
|
}
|
|
if resp.OrgNum != n+1 {
|
|
t.Errorf("want %d, got %d", n+1, resp.OrgNum)
|
|
}
|
|
handler.PutResponse(resp)
|
|
n++
|
|
return nil
|
|
})
|
|
|
|
errFatal(err)
|
|
t.Log("EOF.", payloads, " Roundtrips:", time.Since(start))
|
|
}
|
|
|
|
// testServerStreamResponseBlocked will test if server can handle a blocked response stream
|
|
func testServerStreamResponseBlocked(t *testing.T, local, remote *Manager) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
serverSent := make(chan struct{})
|
|
serverCanceled := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, _ <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
// Send many responses.
|
|
// Test that this doesn't block.
|
|
for i := byte(0); i < 100; i++ {
|
|
select {
|
|
case resp <- []byte{i}:
|
|
// ok
|
|
case <-ctx.Done():
|
|
close(serverCanceled)
|
|
return NewRemoteErr(ctx.Err())
|
|
}
|
|
if i == 1 {
|
|
close(serverSent)
|
|
}
|
|
}
|
|
return nil
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: 0,
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
|
|
|
st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
|
|
// Wait for the server to send the first response.
|
|
<-serverSent
|
|
|
|
// Read back from the stream and block.
|
|
nowBlocking := make(chan struct{})
|
|
stopBlocking := make(chan struct{})
|
|
defer close(stopBlocking)
|
|
go func() {
|
|
st.Results(func(b []byte) error {
|
|
close(nowBlocking)
|
|
// Block until test is done.
|
|
<-stopBlocking
|
|
return nil
|
|
})
|
|
}()
|
|
|
|
<-nowBlocking
|
|
// Wait for the receiver channel to fill.
|
|
for len(st.responses) != cap(st.responses) {
|
|
time.Sleep(time.Millisecond)
|
|
}
|
|
cancel()
|
|
<-serverCanceled
|
|
local.debugMsg(debugIsOutgoingClosed, st.muxID, func(closed bool) {
|
|
if !closed {
|
|
t.Error("expected outgoing closed")
|
|
} else {
|
|
t.Log("outgoing was closed")
|
|
}
|
|
})
|
|
|
|
// Drain responses and check if error propagated.
|
|
err = st.Results(func(b []byte) error {
|
|
return nil
|
|
})
|
|
if !errors.Is(err, context.Canceled) {
|
|
t.Error("expected context.Canceled, got", err)
|
|
}
|
|
}
|
|
|
|
// testServerStreamNoPing will test if server and client handle no pings.
|
|
func testServerStreamNoPing(t *testing.T, local, remote *Manager, inCap int) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
reqStarted := make(chan struct{})
|
|
serverCanceled := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, _ <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
close(reqStarted)
|
|
// Just wait for it to cancel.
|
|
<-ctx.Done()
|
|
close(serverCanceled)
|
|
return NewRemoteErr(ctx.Err())
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: inCap,
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
remoteConn.debugMsg(debugSetClientPingDuration, 100*time.Millisecond)
|
|
defer remoteConn.debugMsg(debugSetClientPingDuration, clientPingInterval)
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
|
|
defer cancel()
|
|
st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
|
|
// Wait for the server start the request.
|
|
<-reqStarted
|
|
|
|
// Stop processing requests
|
|
nowBlocking := make(chan struct{})
|
|
remoteConn.debugMsg(debugBlockInboundMessages, nowBlocking)
|
|
|
|
// Check that local returned.
|
|
err = st.Results(func(b []byte) error {
|
|
return nil
|
|
})
|
|
if err == nil {
|
|
t.Fatal("expected error, got nil")
|
|
}
|
|
t.Logf("response: %v", err)
|
|
|
|
// Check that remote is canceled.
|
|
<-serverCanceled
|
|
close(nowBlocking)
|
|
}
|
|
|
|
// testServerStreamPingRunning will test if server and client handle ping even when blocked.
|
|
func testServerStreamPingRunning(t *testing.T, local, remote *Manager, inCap int, blockResp, blockReq bool) {
|
|
defer testlogger.T.SetErrorTB(t)()
|
|
errFatal := func(err error) {
|
|
t.Helper()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// We fake a local and remote server.
|
|
remoteHost := remote.HostName()
|
|
|
|
// 1: Echo
|
|
reqStarted := make(chan struct{})
|
|
serverCanceled := make(chan struct{})
|
|
register := func(manager *Manager) {
|
|
errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
|
|
Handle: func(ctx context.Context, payload []byte, req <-chan []byte, resp chan<- []byte) *RemoteErr {
|
|
close(reqStarted)
|
|
// Just wait for it to cancel.
|
|
for blockResp {
|
|
select {
|
|
case <-ctx.Done():
|
|
close(serverCanceled)
|
|
return NewRemoteErr(ctx.Err())
|
|
case resp <- []byte{1}:
|
|
time.Sleep(10 * time.Millisecond)
|
|
}
|
|
}
|
|
// Just wait for it to cancel.
|
|
<-ctx.Done()
|
|
close(serverCanceled)
|
|
return NewRemoteErr(ctx.Err())
|
|
},
|
|
OutCapacity: 1,
|
|
InCapacity: inCap,
|
|
}))
|
|
}
|
|
register(local)
|
|
register(remote)
|
|
|
|
remoteConn := local.Connection(remoteHost)
|
|
const testPayload = "Hello Grid World!"
|
|
remoteConn.debugMsg(debugSetClientPingDuration, 100*time.Millisecond)
|
|
defer remoteConn.debugMsg(debugSetClientPingDuration, clientPingInterval)
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
|
|
defer cancel()
|
|
st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
|
|
errFatal(err)
|
|
|
|
// Wait for the server start the request.
|
|
<-reqStarted
|
|
|
|
// Block until we have exceeded the deadline several times over.
|
|
nowBlocking := make(chan struct{})
|
|
var mu sync.Mutex
|
|
time.AfterFunc(time.Second, func() {
|
|
mu.Lock()
|
|
cancel()
|
|
close(nowBlocking)
|
|
mu.Unlock()
|
|
})
|
|
if inCap > 0 {
|
|
go func() {
|
|
defer close(st.Requests)
|
|
if !blockReq {
|
|
<-nowBlocking
|
|
return
|
|
}
|
|
for {
|
|
select {
|
|
case <-nowBlocking:
|
|
return
|
|
case <-st.Done():
|
|
case st.Requests <- []byte{1}:
|
|
time.Sleep(10 * time.Millisecond)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
// Check that local returned.
|
|
err = st.Results(func(b []byte) error {
|
|
<-st.Done()
|
|
return ctx.Err()
|
|
})
|
|
mu.Lock()
|
|
select {
|
|
case <-nowBlocking:
|
|
default:
|
|
t.Fatal("expected to be blocked. got err", err)
|
|
}
|
|
if err == nil {
|
|
t.Fatal("expected error, got nil")
|
|
}
|
|
t.Logf("response: %v", err)
|
|
// Check that remote is canceled.
|
|
<-serverCanceled
|
|
}
|
|
|
|
func timeout(after time.Duration) (cancel func()) {
|
|
c := time.After(after)
|
|
cc := make(chan struct{})
|
|
go func() {
|
|
select {
|
|
case <-cc:
|
|
return
|
|
case <-c:
|
|
buf := make([]byte, 1<<20)
|
|
stacklen := runtime.Stack(buf, true)
|
|
fmt.Printf("=== Timeout, assuming deadlock ===\n*** goroutine dump...\n%s\n*** end\n", string(buf[:stacklen]))
|
|
os.Exit(2)
|
|
}
|
|
}()
|
|
return func() {
|
|
close(cc)
|
|
}
|
|
}
|
|
|
|
func assertNoActive(t *testing.T, c *Connection) {
|
|
t.Helper()
|
|
// Tiny bit racy for tests, but we try to play nice.
|
|
for i := 10; i >= 0; i-- {
|
|
runtime.Gosched()
|
|
stats := c.Stats()
|
|
if stats.IncomingStreams != 0 {
|
|
if i > 0 {
|
|
time.Sleep(100 * time.Millisecond)
|
|
continue
|
|
}
|
|
var found []uint64
|
|
c.inStream.Range(func(key uint64, value *muxServer) bool {
|
|
found = append(found, key)
|
|
return true
|
|
})
|
|
t.Errorf("expected no active streams, got %d incoming: %v", stats.IncomingStreams, found)
|
|
}
|
|
if stats.OutgoingStreams != 0 {
|
|
if i > 0 {
|
|
time.Sleep(100 * time.Millisecond)
|
|
continue
|
|
}
|
|
var found []uint64
|
|
c.outgoing.Range(func(key uint64, value *muxClient) bool {
|
|
found = append(found, key)
|
|
return true
|
|
})
|
|
t.Errorf("expected no active streams, got %d outgoing: %v", stats.OutgoingStreams, found)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
|
|
// Inserted manually.
|
|
func _() {
|
|
// An "invalid array index" compiler error signifies that the constant values have changed.
|
|
// Re-run the stringer command to generate them again.
|
|
var x [1]struct{}
|
|
_ = x[StateUnconnected-0]
|
|
_ = x[StateConnecting-1]
|
|
_ = x[StateConnected-2]
|
|
_ = x[StateConnectionError-3]
|
|
_ = x[StateShutdown-4]
|
|
}
|
|
|
|
const stateName = "UnconnectedConnectingConnectedConnectionErrorShutdown"
|
|
|
|
var stateIndex = [...]uint8{0, 11, 21, 30, 45, 53}
|
|
|
|
func (i State) String() string {
|
|
if i >= State(len(stateIndex)-1) {
|
|
return "State(" + strconv.FormatInt(int64(i), 10) + ")"
|
|
}
|
|
return stateName[stateIndex[i]:stateIndex[i+1]]
|
|
}
|