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462 lines
16 KiB
462 lines
16 KiB
// Copyright 2019 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor
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import (
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"bufio"
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"bytes"
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"context"
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"io"
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"os"
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"strings"
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"time"
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. "github.com/pingcap/check"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/parser/terror"
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plannercore "github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/sessionctx/variable"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/logutil"
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"github.com/pingcap/tidb/util/mock"
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)
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func parseLog(retriever *slowQueryRetriever, sctx sessionctx.Context, reader *bufio.Reader, logNum int) ([][]types.Datum, error) {
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retriever.parsedSlowLogCh = make(chan parsedSlowLog, 100)
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ctx := context.Background()
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retriever.parseSlowLog(ctx, sctx, reader, logNum)
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slowLog := <-retriever.parsedSlowLogCh
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rows, err := slowLog.rows, slowLog.err
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if err == io.EOF {
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err = nil
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}
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return rows, err
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}
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func parseSlowLog(sctx sessionctx.Context, reader *bufio.Reader, logNum int) ([][]types.Datum, error) {
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retriever := &slowQueryRetriever{}
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// Ignore the error is ok for test.
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terror.Log(retriever.initialize(context.Background(), sctx))
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rows, err := parseLog(retriever, sctx, reader, logNum)
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return rows, err
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}
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func (s *testExecSuite) TestParseSlowLogPanic(c *C) {
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slowLogStr :=
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`# Time: 2019-04-28T15:24:04.309074+08:00
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# Txn_start_ts: 405888132465033227
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# User@Host: root[root] @ localhost [127.0.0.1]
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# Query_time: 0.216905
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# Cop_time: 0.38 Process_time: 0.021 Request_count: 1 Total_keys: 637 Processed_keys: 436
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# Is_internal: true
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# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
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# Stats: t1:1,t2:2
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# Cop_proc_avg: 0.1 Cop_proc_p90: 0.2 Cop_proc_max: 0.03 Cop_proc_addr: 127.0.0.1:20160
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# Cop_wait_avg: 0.05 Cop_wait_p90: 0.6 Cop_wait_max: 0.8 Cop_wait_addr: 0.0.0.0:20160
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# Mem_max: 70724
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# Disk_max: 65536
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# Plan_from_cache: true
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# Succ: false
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# Plan_digest: 60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4
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# Prev_stmt: update t set i = 1;
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use test;
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select * from t;`
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c.Assert(failpoint.Enable("github.com/pingcap/tidb/executor/errorMockParseSlowLogPanic", `return(true)`), IsNil)
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defer func() {
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c.Assert(failpoint.Disable("github.com/pingcap/tidb/executor/errorMockParseSlowLogPanic"), IsNil)
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}()
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reader := bufio.NewReader(bytes.NewBufferString(slowLogStr))
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loc, err := time.LoadLocation("Asia/Shanghai")
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c.Assert(err, IsNil)
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sctx := mock.NewContext()
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sctx.GetSessionVars().TimeZone = loc
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_, err = parseSlowLog(sctx, reader, 64)
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c.Assert(err, NotNil)
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c.Assert(err.Error(), Equals, "panic test")
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}
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func (s *testExecSuite) TestParseSlowLogFile(c *C) {
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slowLogStr :=
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`# Time: 2019-04-28T15:24:04.309074+08:00
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# Txn_start_ts: 405888132465033227
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# User@Host: root[root] @ localhost [127.0.0.1]
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# Exec_retry_time: 0.12 Exec_retry_count: 57
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# Query_time: 0.216905
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# Cop_time: 0.38 Process_time: 0.021 Request_count: 1 Total_keys: 637 Processed_keys: 436
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# Is_internal: true
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# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
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# Stats: t1:1,t2:2
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# Cop_proc_avg: 0.1 Cop_proc_p90: 0.2 Cop_proc_max: 0.03 Cop_proc_addr: 127.0.0.1:20160
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# Cop_wait_avg: 0.05 Cop_wait_p90: 0.6 Cop_wait_max: 0.8 Cop_wait_addr: 0.0.0.0:20160
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# Cop_backoff_regionMiss_total_times: 200 Cop_backoff_regionMiss_total_time: 0.2 Cop_backoff_regionMiss_max_time: 0.2 Cop_backoff_regionMiss_max_addr: 127.0.0.1 Cop_backoff_regionMiss_avg_time: 0.2 Cop_backoff_regionMiss_p90_time: 0.2
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# Cop_backoff_rpcPD_total_times: 200 Cop_backoff_rpcPD_total_time: 0.2 Cop_backoff_rpcPD_max_time: 0.2 Cop_backoff_rpcPD_max_addr: 127.0.0.1 Cop_backoff_rpcPD_avg_time: 0.2 Cop_backoff_rpcPD_p90_time: 0.2
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# Cop_backoff_rpcTiKV_total_times: 200 Cop_backoff_rpcTiKV_total_time: 0.2 Cop_backoff_rpcTiKV_max_time: 0.2 Cop_backoff_rpcTiKV_max_addr: 127.0.0.1 Cop_backoff_rpcTiKV_avg_time: 0.2 Cop_backoff_rpcTiKV_p90_time: 0.2
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# Mem_max: 70724
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# Disk_max: 65536
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# Plan_from_cache: true
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# Succ: false
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# Plan_digest: 60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4
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# Prev_stmt: update t set i = 1;
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use test;
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select * from t;`
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reader := bufio.NewReader(bytes.NewBufferString(slowLogStr))
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loc, err := time.LoadLocation("Asia/Shanghai")
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c.Assert(err, IsNil)
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ctx := mock.NewContext()
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ctx.GetSessionVars().TimeZone = loc
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rows, err := parseSlowLog(ctx, reader, 64)
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c.Assert(err, IsNil)
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c.Assert(len(rows), Equals, 1)
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recordString := ""
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for i, value := range rows[0] {
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str, err := value.ToString()
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c.Assert(err, IsNil)
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if i > 0 {
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recordString += ","
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}
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recordString += str
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}
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expectRecordString := `2019-04-28 15:24:04.309074,` +
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`405888132465033227,root,localhost,0,57,0.12,0.216905,` +
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`0,0,0,0,0,0,0,0,0,0,,0,0,0,0,0,0,0.38,0.021,0,0,0,1,637,0,,,1,42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772,t1:1,t2:2,` +
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`0.1,0.2,0.03,127.0.0.1:20160,0.05,0.6,0.8,0.0.0.0:20160,70724,65536,0,0,0,0,` +
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`Cop_backoff_regionMiss_total_times: 200 Cop_backoff_regionMiss_total_time: 0.2 Cop_backoff_regionMiss_max_time: 0.2 Cop_backoff_regionMiss_max_addr: 127.0.0.1 Cop_backoff_regionMiss_avg_time: 0.2 Cop_backoff_regionMiss_p90_time: 0.2 Cop_backoff_rpcPD_total_times: 200 Cop_backoff_rpcPD_total_time: 0.2 Cop_backoff_rpcPD_max_time: 0.2 Cop_backoff_rpcPD_max_addr: 127.0.0.1 Cop_backoff_rpcPD_avg_time: 0.2 Cop_backoff_rpcPD_p90_time: 0.2 Cop_backoff_rpcTiKV_total_times: 200 Cop_backoff_rpcTiKV_total_time: 0.2 Cop_backoff_rpcTiKV_max_time: 0.2 Cop_backoff_rpcTiKV_max_addr: 127.0.0.1 Cop_backoff_rpcTiKV_avg_time: 0.2 Cop_backoff_rpcTiKV_p90_time: 0.2,` +
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`0,0,1,,60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4,` +
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`update t set i = 1;,select * from t;`
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c.Assert(recordString, Equals, expectRecordString)
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// Issue 20928
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reader = bufio.NewReader(bytes.NewBufferString(slowLogStr))
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rows, err = parseSlowLog(ctx, reader, 1)
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c.Assert(err, IsNil)
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c.Assert(len(rows), Equals, 1)
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recordString = ""
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for i, value := range rows[0] {
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str, err := value.ToString()
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c.Assert(err, IsNil)
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if i > 0 {
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recordString += ","
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}
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recordString += str
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}
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c.Assert(expectRecordString, Equals, recordString)
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// fix sql contain '# ' bug
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slowLog := bytes.NewBufferString(
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`# Time: 2019-04-28T15:24:04.309074+08:00
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select a# from t;
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# Time: 2019-01-24T22:32:29.313255+08:00
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# Txn_start_ts: 405888132465033227
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# Query_time: 0.216905
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# Process_time: 0.021 Request_count: 1 Total_keys: 637 Processed_keys: 436
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# Is_internal: true
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# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
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# Stats: t1:1,t2:2
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# Succ: false
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select * from t;
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`)
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reader = bufio.NewReader(slowLog)
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_, err = parseSlowLog(ctx, reader, 64)
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c.Assert(err, IsNil)
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// test for time format compatibility.
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slowLog = bytes.NewBufferString(
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`# Time: 2019-04-28T15:24:04.309074+08:00
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select * from t;
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# Time: 2019-04-24-19:41:21.716221 +0800
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select * from t;
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`)
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reader = bufio.NewReader(slowLog)
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rows, err = parseSlowLog(ctx, reader, 64)
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c.Assert(err, IsNil)
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c.Assert(len(rows) == 2, IsTrue)
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t0Str, err := rows[0][0].ToString()
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c.Assert(err, IsNil)
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c.Assert(t0Str, Equals, "2019-04-28 15:24:04.309074")
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t1Str, err := rows[1][0].ToString()
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c.Assert(err, IsNil)
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c.Assert(t1Str, Equals, "2019-04-24 19:41:21.716221")
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// Add parse error check.
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slowLog = bytes.NewBufferString(
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`# Time: 2019-04-28T15:24:04.309074+08:00
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# Succ: abc
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select * from t;
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`)
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reader = bufio.NewReader(slowLog)
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_, err = parseSlowLog(ctx, reader, 64)
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c.Assert(err, IsNil)
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warnings := ctx.GetSessionVars().StmtCtx.GetWarnings()
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c.Assert(warnings, HasLen, 1)
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c.Assert(warnings[0].Err.Error(), Equals, "Parse slow log at line 2 failed. Field: `Succ`, error: strconv.ParseBool: parsing \"abc\": invalid syntax")
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}
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// It changes variable.MaxOfMaxAllowedPacket, so must be stayed in SerialSuite.
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func (s *testExecSerialSuite) TestParseSlowLogFileSerial(c *C) {
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loc, err := time.LoadLocation("Asia/Shanghai")
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c.Assert(err, IsNil)
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ctx := mock.NewContext()
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ctx.GetSessionVars().TimeZone = loc
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// test for bufio.Scanner: token too long.
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slowLog := bytes.NewBufferString(
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`# Time: 2019-04-28T15:24:04.309074+08:00
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select * from t;
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# Time: 2019-04-24-19:41:21.716221 +0800
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`)
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originValue := variable.MaxOfMaxAllowedPacket
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variable.MaxOfMaxAllowedPacket = 65536
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sql := strings.Repeat("x", int(variable.MaxOfMaxAllowedPacket+1))
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slowLog.WriteString(sql)
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reader := bufio.NewReader(slowLog)
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_, err = parseSlowLog(ctx, reader, 64)
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c.Assert(err, NotNil)
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c.Assert(err.Error(), Equals, "single line length exceeds limit: 65536")
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variable.MaxOfMaxAllowedPacket = originValue
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reader = bufio.NewReader(slowLog)
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_, err = parseSlowLog(ctx, reader, 64)
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c.Assert(err, IsNil)
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}
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func (s *testExecSuite) TestSlowLogParseTime(c *C) {
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t1Str := "2019-01-24T22:32:29.313255+08:00"
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t2Str := "2019-01-24T22:32:29.313255"
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t1, err := ParseTime(t1Str)
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c.Assert(err, IsNil)
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loc, err := time.LoadLocation("Asia/Shanghai")
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c.Assert(err, IsNil)
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t2, err := time.ParseInLocation("2006-01-02T15:04:05.999999999", t2Str, loc)
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c.Assert(err, IsNil)
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c.Assert(t1.Unix(), Equals, t2.Unix())
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t1Format := t1.In(loc).Format(logutil.SlowLogTimeFormat)
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c.Assert(t1Format, Equals, t1Str)
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}
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// TestFixParseSlowLogFile bugfix
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// sql select * from INFORMATION_SCHEMA.SLOW_QUERY limit 1;
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// ERROR 1105 (HY000): string "2019-05-12-11:23:29.61474688" doesn't has a prefix that matches format "2006-01-02-15:04:05.999999999 -0700", err: parsing time "2019-05-12-11:23:29.61474688" as "2006-01-02-15:04:05.999999999 -0700": cannot parse "" as "-0700"
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func (s *testExecSuite) TestFixParseSlowLogFile(c *C) {
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slowLog := bytes.NewBufferString(
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`# Time: 2019-05-12-11:23:29.614327491 +0800
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# Txn_start_ts: 405888132465033227
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# Query_time: 0.216905
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# Process_time: 0.021 Request_count: 1 Total_keys: 637 Processed_keys: 436
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# Is_internal: true
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# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
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# Stats: t1:1,t2:2
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# Cop_proc_avg: 0.1 Cop_proc_p90: 0.2 Cop_proc_max: 0.03
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# Cop_wait_avg: 0.05 Cop_wait_p90: 0.6 Cop_wait_max: 0.8
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# Mem_max: 70724
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select * from t
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# Time: 2019-05-12-11:23:29.614327491 +0800
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# Txn_start_ts: 405888132465033227
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# Query_time: 0.216905
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# Process_time: 0.021 Request_count: 1 Total_keys: 637 Processed_keys: 436
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# Is_internal: true
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# Digest: 42a1c8aae6f133e934d4bf0147491709a8812ea05ff8819ec522780fe657b772
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# Stats: t1:1,t2:2
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# Cop_proc_avg: 0.1 Cop_proc_p90: 0.2 Cop_proc_max: 0.03
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# Cop_wait_avg: 0.05 Cop_wait_p90: 0.6 Cop_wait_max: 0.8
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# Mem_max: 70724
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# Plan_digest: 60e9378c746d9a2be1c791047e008967cf252eb6de9167ad3aa6098fa2d523f4
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select * from t;`)
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scanner := bufio.NewReader(slowLog)
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loc, err := time.LoadLocation("Asia/Shanghai")
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c.Assert(err, IsNil)
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ctx := mock.NewContext()
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ctx.GetSessionVars().TimeZone = loc
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_, err = parseSlowLog(ctx, scanner, 64)
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c.Assert(err, IsNil)
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// Test parser error.
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slowLog = bytes.NewBufferString(
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`# Time: 2019-05-12-11:23:29.614327491 +0800
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# Txn_start_ts: 405888132465033227#
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`)
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scanner = bufio.NewReader(slowLog)
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_, err = parseSlowLog(ctx, scanner, 64)
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c.Assert(err, IsNil)
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warnings := ctx.GetSessionVars().StmtCtx.GetWarnings()
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c.Assert(warnings, HasLen, 1)
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c.Assert(warnings[0].Err.Error(), Equals, "Parse slow log at line 2 failed. Field: `Txn_start_ts`, error: strconv.ParseUint: parsing \"405888132465033227#\": invalid syntax")
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}
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func (s *testExecSuite) TestSlowQueryRetriever(c *C) {
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writeFile := func(file string, data string) {
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f, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY, 0644)
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c.Assert(err, IsNil)
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_, err = f.Write([]byte(data))
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c.Assert(f.Close(), IsNil)
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c.Assert(err, IsNil)
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}
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logData0 := ""
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logData1 := `
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# Time: 2020-02-15T18:00:01.000000+08:00
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select 1;
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# Time: 2020-02-15T19:00:05.000000+08:00
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select 2;`
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logData2 := `
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# Time: 2020-02-16T18:00:01.000000+08:00
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select 3;
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# Time: 2020-02-16T18:00:05.000000+08:00
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select 4;`
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logData3 := `
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# Time: 2020-02-16T19:00:00.000000+08:00
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select 5;
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# Time: 2020-02-17T18:00:05.000000+08:00
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select 6;
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# Time: 2020-04-15T18:00:05.299063744+08:00
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select 7;`
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fileName0 := "tidb-slow-2020-02-14T19-04-05.01.log"
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fileName1 := "tidb-slow-2020-02-15T19-04-05.01.log"
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fileName2 := "tidb-slow-2020-02-16T19-04-05.01.log"
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fileName3 := "tidb-slow.log"
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writeFile(fileName0, logData0)
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writeFile(fileName1, logData1)
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writeFile(fileName2, logData2)
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writeFile(fileName3, logData3)
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defer func() {
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os.Remove(fileName0)
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os.Remove(fileName1)
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os.Remove(fileName2)
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os.Remove(fileName3)
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}()
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cases := []struct {
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startTime string
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endTime string
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files []string
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querys []string
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}{
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{
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startTime: "2020-02-15T18:00:00.000000+08:00",
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endTime: "2020-02-17T20:00:00.000000+08:00",
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files: []string{fileName1, fileName2, fileName3},
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querys: []string{
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"select 1;",
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"select 2;",
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"select 3;",
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"select 4;",
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"select 5;",
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"select 6;",
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},
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},
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{
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startTime: "2020-02-15T18:00:02.000000+08:00",
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endTime: "2020-02-16T20:00:00.000000+08:00",
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files: []string{fileName1, fileName2, fileName3},
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querys: []string{
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"select 2;",
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"select 3;",
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"select 4;",
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"select 5;",
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},
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},
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{
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|
startTime: "2020-02-16T18:00:03.000000+08:00",
|
|
endTime: "2020-02-16T18:59:00.000000+08:00",
|
|
files: []string{fileName2},
|
|
querys: []string{
|
|
"select 4;",
|
|
},
|
|
},
|
|
{
|
|
startTime: "2020-02-16T18:00:03.000000+08:00",
|
|
endTime: "2020-02-16T20:00:00.000000+08:00",
|
|
files: []string{fileName2, fileName3},
|
|
querys: []string{
|
|
"select 4;",
|
|
"select 5;",
|
|
},
|
|
},
|
|
{
|
|
startTime: "2020-02-16T19:00:00.000000+08:00",
|
|
endTime: "2020-02-17T17:00:00.000000+08:00",
|
|
files: []string{fileName3},
|
|
querys: []string{
|
|
"select 5;",
|
|
},
|
|
},
|
|
{
|
|
startTime: "2010-01-01T00:00:00.000000+08:00",
|
|
endTime: "2010-01-01T01:00:00.000000+08:00",
|
|
files: []string{},
|
|
},
|
|
{
|
|
startTime: "2020-03-01T00:00:00.000000+08:00",
|
|
endTime: "2010-03-01T01:00:00.000000+08:00",
|
|
files: []string{},
|
|
},
|
|
{
|
|
startTime: "",
|
|
endTime: "",
|
|
files: []string{fileName3},
|
|
querys: []string{
|
|
"select 5;",
|
|
"select 6;",
|
|
"select 7;",
|
|
},
|
|
},
|
|
{
|
|
startTime: "2020-04-15T18:00:05.299063744+08:00",
|
|
endTime: "2020-04-15T18:00:05.299063744+08:00",
|
|
files: []string{fileName3},
|
|
querys: []string{
|
|
"select 7;",
|
|
},
|
|
},
|
|
}
|
|
|
|
loc, err := time.LoadLocation("Asia/Shanghai")
|
|
c.Assert(err, IsNil)
|
|
sctx := mock.NewContext()
|
|
sctx.GetSessionVars().TimeZone = loc
|
|
sctx.GetSessionVars().SlowQueryFile = fileName3
|
|
for i, cas := range cases {
|
|
extractor := &plannercore.SlowQueryExtractor{Enable: (len(cas.startTime) > 0 && len(cas.endTime) > 0)}
|
|
if extractor.Enable {
|
|
startTime, err := ParseTime(cas.startTime)
|
|
c.Assert(err, IsNil)
|
|
endTime, err := ParseTime(cas.endTime)
|
|
c.Assert(err, IsNil)
|
|
extractor.StartTime = startTime
|
|
extractor.EndTime = endTime
|
|
|
|
}
|
|
retriever := &slowQueryRetriever{extractor: extractor}
|
|
err := retriever.initialize(context.Background(), sctx)
|
|
c.Assert(err, IsNil)
|
|
comment := Commentf("case id: %v", i)
|
|
c.Assert(retriever.files, HasLen, len(cas.files), comment)
|
|
if len(retriever.files) > 0 {
|
|
reader := bufio.NewReader(retriever.files[0].file)
|
|
rows, err := parseLog(retriever, sctx, reader, 64)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(len(rows), Equals, len(cas.querys), comment)
|
|
for i, row := range rows {
|
|
c.Assert(row[len(row)-1].GetString(), Equals, cas.querys[i], comment)
|
|
}
|
|
}
|
|
|
|
for i, file := range retriever.files {
|
|
c.Assert(file.file.Name(), Equals, cas.files[i])
|
|
c.Assert(file.file.Close(), IsNil)
|
|
}
|
|
}
|
|
}
|
|
|