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server: split cursor test (pingcap#50683)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_test") | ||
|
|
||
| go_test( | ||
| name = "cursor_test", | ||
| timeout = "short", | ||
| srcs = [ | ||
| "cursor_test.go", | ||
| "main_test.go", | ||
| ], | ||
| flaky = True, | ||
| shard_count = 3, | ||
| deps = [ | ||
| "//pkg/config", | ||
| "//pkg/metrics", | ||
| "//pkg/parser/mysql", | ||
| "//pkg/server", | ||
| "//pkg/session", | ||
| "//pkg/store/mockstore/unistore", | ||
| "//pkg/testkit", | ||
| "//pkg/testkit/testsetup", | ||
| "//pkg/util/topsql/state", | ||
| "@com_github_pingcap_failpoint//:failpoint", | ||
| "@com_github_stretchr_testify//require", | ||
| "@com_github_tikv_client_go_v2//tikv", | ||
| "@org_uber_go_goleak//:goleak", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // 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. | ||
|
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| package cursor | ||
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| import ( | ||
| "context" | ||
| "encoding/binary" | ||
| "fmt" | ||
| "math/rand" | ||
| "testing" | ||
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| "github.com/pingcap/failpoint" | ||
| "github.com/pingcap/tidb/pkg/config" | ||
| tmysql "github.com/pingcap/tidb/pkg/parser/mysql" | ||
| server2 "github.com/pingcap/tidb/pkg/server" | ||
| "github.com/pingcap/tidb/pkg/testkit" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
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| func TestCursorFetchErrorInFetch(t *testing.T) { | ||
| tmpStoragePath := t.TempDir() | ||
| restore := config.RestoreFunc() | ||
| defer restore() | ||
| config.UpdateGlobal(func(conf *config.Config) { | ||
| conf.TempStoragePath = tmpStoragePath | ||
| }) | ||
|
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| store, dom := testkit.CreateMockStoreAndDomain(t) | ||
| srv := server2.CreateMockServer(t, store) | ||
| srv.SetDomain(dom) | ||
| defer srv.Close() | ||
|
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| appendUint32 := binary.LittleEndian.AppendUint32 | ||
| ctx := context.Background() | ||
| c := server2.CreateMockConn(t, srv) | ||
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| tk := testkit.NewTestKitWithSession(t, store, c.Context().Session) | ||
| tk.MustExec("use test") | ||
| tk.MustExec("drop table if exists t") | ||
| tk.MustExec("create table t(id int, payload BLOB)") | ||
| payload := make([]byte, 512) | ||
| for i := 0; i < 2048; i++ { | ||
| rand.Read(payload) | ||
| tk.MustExec("insert into t values (?, ?)", i, payload) | ||
| } | ||
|
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| tk.MustExec("set global tidb_enable_tmp_storage_on_oom = ON") | ||
| tk.MustExec("set global tidb_mem_oom_action = 'CANCEL'") | ||
| defer tk.MustExec("set global tidb_mem_oom_action= DEFAULT") | ||
| require.Len(t, tk.Session().GetSessionVars().MemTracker.GetChildrenForTest(), 1) | ||
|
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| // execute a normal statement, it'll spill to disk | ||
| stmt, _, _, err := c.Context().Prepare("select * from t") | ||
| require.NoError(t, err) | ||
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| tk.MustExec(fmt.Sprintf("set tidb_mem_quota_query=%d", 1)) | ||
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| require.NoError(t, c.Dispatch(ctx, append( | ||
| appendUint32([]byte{tmysql.ComStmtExecute}, uint32(stmt.ID())), | ||
| tmysql.CursorTypeReadOnly, 0x1, 0x0, 0x0, 0x0, | ||
| ))) | ||
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| require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/util/chunk/get-chunk-error", "return(true)")) | ||
| defer func() { | ||
| require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/util/chunk/get-chunk-error")) | ||
| }() | ||
| require.ErrorContains(t, c.Dispatch(ctx, appendUint32(appendUint32([]byte{tmysql.ComStmtFetch}, uint32(stmt.ID())), 1024)), "fail to get chunk for test") | ||
| // after getting a failed FETCH, the cursor should have been reseted | ||
| require.False(t, stmt.GetCursorActive()) | ||
| require.Len(t, tk.Session().GetSessionVars().MemTracker.GetChildrenForTest(), 0) | ||
| require.Len(t, tk.Session().GetSessionVars().DiskTracker.GetChildrenForTest(), 0) | ||
| } | ||
|
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| func TestCursorFetchShouldSpill(t *testing.T) { | ||
| restore := config.RestoreFunc() | ||
| defer restore() | ||
| config.UpdateGlobal(func(conf *config.Config) { | ||
| conf.TempStoragePath = t.TempDir() | ||
| }) | ||
|
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| store, dom := testkit.CreateMockStoreAndDomain(t) | ||
| srv := server2.CreateMockServer(t, store) | ||
| srv.SetDomain(dom) | ||
| defer srv.Close() | ||
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| require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/server/testCursorFetchSpill", "return(true)")) | ||
| defer func() { | ||
| require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/server/testCursorFetchSpill")) | ||
| }() | ||
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| appendUint32 := binary.LittleEndian.AppendUint32 | ||
| ctx := context.Background() | ||
| c := server2.CreateMockConn(t, srv) | ||
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| tk := testkit.NewTestKitWithSession(t, store, c.Context().Session) | ||
| tk.MustExec("use test") | ||
| tk.MustExec("drop table if exists t") | ||
| tk.MustExec("create table t(id_1 int, id_2 int)") | ||
| tk.MustExec("insert into t values (1, 1), (1, 2)") | ||
| tk.MustExec("set global tidb_enable_tmp_storage_on_oom = ON") | ||
| tk.MustExec("set global tidb_mem_oom_action = 'CANCEL'") | ||
| defer tk.MustExec("set global tidb_mem_oom_action= DEFAULT") | ||
| require.Len(t, tk.Session().GetSessionVars().MemTracker.GetChildrenForTest(), 1) | ||
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| // execute a normal statement, it'll spill to disk | ||
| stmt, _, _, err := c.Context().Prepare("select * from t") | ||
| require.NoError(t, err) | ||
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| tk.MustExec(fmt.Sprintf("set tidb_mem_quota_query=%d", 1)) | ||
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| require.NoError(t, c.Dispatch(ctx, append( | ||
| appendUint32([]byte{tmysql.ComStmtExecute}, uint32(stmt.ID())), | ||
| tmysql.CursorTypeReadOnly, 0x1, 0x0, 0x0, 0x0, | ||
| ))) | ||
| } | ||
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| func TestCursorFetchExecuteCheck(t *testing.T) { | ||
| store, dom := testkit.CreateMockStoreAndDomain(t) | ||
| srv := server2.CreateMockServer(t, store) | ||
| srv.SetDomain(dom) | ||
| defer srv.Close() | ||
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| appendUint32 := binary.LittleEndian.AppendUint32 | ||
| ctx := context.Background() | ||
| c := server2.CreateMockConn(t, srv) | ||
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| stmt, _, _, err := c.Context().Prepare("select 1") | ||
| require.NoError(t, err) | ||
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| // execute with wrong ID | ||
| require.Error(t, c.Dispatch(ctx, append( | ||
| appendUint32([]byte{tmysql.ComStmtExecute}, uint32(stmt.ID()+1)), | ||
| tmysql.CursorTypeReadOnly, 0x1, 0x0, 0x0, 0x0, | ||
| ))) | ||
|
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| // execute with wrong flag | ||
| require.Error(t, c.Dispatch(ctx, append( | ||
| appendUint32([]byte{tmysql.ComStmtExecute}, uint32(stmt.ID())), | ||
| tmysql.CursorTypeReadOnly|tmysql.CursorTypeForUpdate, 0x1, 0x0, 0x0, 0x0, | ||
| ))) | ||
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| require.Error(t, c.Dispatch(ctx, append( | ||
| appendUint32([]byte{tmysql.ComStmtExecute}, uint32(stmt.ID())), | ||
| tmysql.CursorTypeReadOnly|tmysql.CursorTypeScrollable, 0x1, 0x0, 0x0, 0x0, | ||
| ))) | ||
| } |
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