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*: update tikv/client-go to fix batch-client send loop panic issue #47716

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*: update tikv/client-go to fix batch-client send loop panic issue #47716

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03aabee
init
crazycs520 Oct 17, 2023
95f4f6e
*: update tikv/client-go to fix batch-client send loop panic issue
crazycs520 Oct 17, 2023
2dec85a
make bazel_prepare
crazycs520 Oct 17, 2023
29e50b1
address comment
crazycs520 Oct 18, 2023
2f2c554
refine test
crazycs520 Oct 18, 2023
8aa4cf6
refine test
crazycs520 Oct 18, 2023
b5b720e
fix test
crazycs520 Oct 18, 2023
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12 changes: 6 additions & 6 deletions DEPS.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -7067,13 +7067,13 @@ def go_deps():
name = "com_github_tikv_client_go_v2",
build_file_proto_mode = "disable_global",
importpath = "github.com/tikv/client-go/v2",
sha256 = "e4953948d2346bf26d95fcc860b612c7c1d86f07c80a754db2551067912d37c8",
strip_prefix = "github.com/tikv/client-go/v2@v2.0.8-0.20231010061802-07432ef6c031",
sha256 = "6ad31199d7498e5bd6e493790db713ee8b253276c116a414b25d67cf31e7fb5a",
strip_prefix = "github.com/tikv/client-go/v2@v2.0.8-0.20231017074406-2eaf68e0cd3d",
urls = [
"http://bazel-cache.pingcap.net:8080/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231010061802-07432ef6c031.zip",
"http://ats.apps.svc/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231010061802-07432ef6c031.zip",
"https://cache.hawkingrei.com/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231010061802-07432ef6c031.zip",
"https://storage.googleapis.com/pingcapmirror/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231010061802-07432ef6c031.zip",
"http://bazel-cache.pingcap.net:8080/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231017074406-2eaf68e0cd3d.zip",
"http://ats.apps.svc/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231017074406-2eaf68e0cd3d.zip",
"https://cache.hawkingrei.com/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231017074406-2eaf68e0cd3d.zip",
"https://storage.googleapis.com/pingcapmirror/gomod/github.com/tikv/client-go/v2/com_github_tikv_client_go_v2-v2.0.8-0.20231017074406-2eaf68e0cd3d.zip",
],
)
go_repository(
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2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,7 @@ require (
github.com/stretchr/testify v1.8.4
github.com/tdakkota/asciicheck v0.2.0
github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2
github.com/tikv/client-go/v2 v2.0.8-0.20231010061802-07432ef6c031
github.com/tikv/client-go/v2 v2.0.8-0.20231017074406-2eaf68e0cd3d
github.com/tikv/pd/client v0.0.0-20230912103610-2f57a9f050eb
github.com/timakin/bodyclose v0.0.0-20230421092635-574207250966
github.com/twmb/murmur3 v1.1.6
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4 changes: 2 additions & 2 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -1027,8 +1027,8 @@ github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2 h1:mbAskLJ0oJf
github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2/go.mod h1:2PfKggNGDuadAa0LElHrByyrz4JPZ9fFx6Gs7nx7ZZU=
github.com/tiancaiamao/gp v0.0.0-20221230034425-4025bc8a4d4a h1:J/YdBZ46WKpXsxsW93SG+q0F8KI+yFrcIDT4c/RNoc4=
github.com/tiancaiamao/gp v0.0.0-20221230034425-4025bc8a4d4a/go.mod h1:h4xBhSNtOeEosLJ4P7JyKXX7Cabg7AVkWCK5gV2vOrM=
github.com/tikv/client-go/v2 v2.0.8-0.20231010061802-07432ef6c031 h1:+D3p4UBbL1V3vCZ7FtaW9mZgeGq3U14+VfcHyiYn1mU=
github.com/tikv/client-go/v2 v2.0.8-0.20231010061802-07432ef6c031/go.mod h1:AjaU1PM3aVQih/zsYvc5sE9z7dAMxV+e881GNeZGTck=
github.com/tikv/client-go/v2 v2.0.8-0.20231017074406-2eaf68e0cd3d h1:PLGpRLh1E1zBdXNER52L5VCDCAuk8Bh1mowNvO1OUp4=
github.com/tikv/client-go/v2 v2.0.8-0.20231017074406-2eaf68e0cd3d/go.mod h1:AjaU1PM3aVQih/zsYvc5sE9z7dAMxV+e881GNeZGTck=
github.com/tikv/pd/client v0.0.0-20230912103610-2f57a9f050eb h1:hAcH9tFjQzQ3+ofrAHm4ajOTLliYCOfXpj3+boKOtac=
github.com/tikv/pd/client v0.0.0-20230912103610-2f57a9f050eb/go.mod h1:E+6qtPu8fJm5kNjvKWPVFqSgNAFPk07y2EjD03GWzuI=
github.com/timakin/bodyclose v0.0.0-20230421092635-574207250966 h1:quvGphlmUVU+nhpFa4gg4yJyTRJ13reZMDHrKwYw53M=
Expand Down
41 changes: 41 additions & 0 deletions tests/realtikvtest/sessiontest/session_fail_test.go
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Expand Up @@ -17,8 +17,11 @@ package sessiontest
import (
"context"
"fmt"
"math/rand"
"strconv"
"sync"
"testing"
"time"

"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/pkg/config"
Expand Down Expand Up @@ -317,3 +320,41 @@ func TestTiKVClientReadTimeout(t *testing.T) {
explain = fmt.Sprintf("%v", rows[0])
require.Regexp(t, ".*TableReader.* root time:.*, loops:.* cop_task: {num: 1, .* rpc_num: (3|4|5).*", explain)
}

func TestBatchClientDataRace(t *testing.T) {
// This test uses to detect data race, so it should run by `go test -race`.
if !*realtikvtest.WithRealTiKV {
t.Skip("skip test since it's only work for tikv")
}
config.UpdateGlobal(func(conf *config.Config) {
conf.TiKVClient.MaxBatchSize = 128
})
store := realtikvtest.CreateMockStoreAndSetup(t)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table if not exists t (a int primary key, b int)")

var wg sync.WaitGroup
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
for j := 0; j < 100; j++ {
ctx, cancel := context.WithCancel(context.Background())
go func() {
// mock for kill query execution or timeout.
time.Sleep(time.Millisecond * time.Duration(rand.Intn(10)+1))
cancel()
}()
rs, _ := tk.ExecWithContext(ctx, "select * from t where a = 1")
if rs != nil {
session.ResultSetToStringSlice(ctx, tk.Session(), rs)
}
}

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Please remove this useless line.
Besides, I ran this test（with --with-real-tikv and -race） locally with the master version 2 twice and passed both times. Is this test unreliable or does it need to work well on CI?

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Nice catch. I wrote this test in the release-6.5 branch first time, and the test will fail in release-6.5 branch.

Master branch can pass the test even without tikv/client-go#1021 , I still keep the test to detect data race in future.

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@crazycs520 crazycs520 Oct 18, 2023 •
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In release-6.5 run this test will fail.

github.com/pingcap/tidb  release-6.5 ✗                                                                                                                                          
▶ cd tests/realtikvtest/sessiontest/

tests/realtikvtest/sessiontest  release-6.5 ✗                                                                                                                                   
▶ go test -race --tags=intest -run=TestBatchClientDataRace --with-real-tikv=true
...
...
...
[2023/10/18 14:56:15.607 +08:00] [INFO] [pd.go:209] ["closed pd http client"]
--- FAIL: TestBatchClientDataRace (31.54s)
    testing.go:1465: race detected during execution of test
FAIL
exit status 1
FAIL    github.com/pingcap/tidb/tests/realtikvtest/sessiontest  32.724s

}()
}
wg.Wait()
}