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* Support local_log_reader && remote_log_reader * support predicate push down to log reader * refine log names * refine http log handler * specific host to read log * 1. support multi-node log-reader 2. support uniform tikv-tidb log reader * finding log path from global config * bug fix
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| // Copyright 2018 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package executor | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/parser/model" | ||
| "github.com/pingcap/parser/mysql" | ||
| "github.com/pingcap/tidb/config" | ||
| log2 "github.com/pingcap/tidb/infoschema/inspection/log" | ||
| "github.com/pingcap/tidb/infoschema/inspection/log/item" | ||
| "github.com/pingcap/tidb/infoschema/inspection/log/search" | ||
| "github.com/pingcap/tidb/types" | ||
| "github.com/pingcap/tidb/util/chunk" | ||
| "golang.org/x/net/context" | ||
| ) | ||
|
|
||
| // make sure `LocalLogReaderExecutor` implements `Executor`. | ||
| var _ Executor = &LocalLogReaderExecutor{} | ||
|
|
||
| type LocalLogReaderExecutor struct { | ||
| baseExecutor | ||
| Table *model.TableInfo | ||
| Columns []*model.ColumnInfo | ||
|
|
||
| se *search.Sequence | ||
| result *chunk.Chunk | ||
| cnt int | ||
| limit int | ||
| startTimeStr string | ||
| endTimeStr string | ||
| LimitStr string | ||
| } | ||
|
|
||
| func (e *LocalLogReaderExecutor) Open(ctx context.Context) error { | ||
| TimeStampLayout := "2006-01-02T15:04:05" | ||
| local, err := time.LoadLocation("Asia/Chongqing") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| // startTime, _ := time.ParseInLocation(TimeStampLayout ,"1970-01-01T00:00:00", local) | ||
| // endTime, _ := time.ParseInLocation(TimeStampLayout , "2030-01-01T00:00:00", local) | ||
| startTime, err := time.ParseInLocation(TimeStampLayout ,e.startTimeStr, local) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| endTime, err := time.ParseInLocation(TimeStampLayout , e.endTimeStr, local) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| l, err := strconv.ParseInt(e.LimitStr, 10, 64) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| e.limit = int(l) | ||
| if e.se, err = search.NewSequence(log2.GetTiDBLogPath(), startTime, endTime); err != nil { | ||
| return err | ||
| } | ||
| e.cnt = 0 | ||
| return nil | ||
| } | ||
|
|
||
| // Next fills data into the chunk passed by its caller. | ||
| func (e *LocalLogReaderExecutor) Next(ctx context.Context, chk *chunk.Chunk) error { | ||
| var err error | ||
|
|
||
| chk.GrowAndReset(e.maxChunkSize) | ||
| if e.result == nil { | ||
| e.result = newFirstChunk(e) | ||
| } | ||
| e.result.Reset() | ||
| err = e.fetchAll() | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
| iter := chunk.NewIterator4Chunk(e.result) | ||
| for colIdx := 0; colIdx < e.Schema().Len(); colIdx++ { | ||
| retType := e.Schema().Columns[colIdx].RetType | ||
| if !types.IsTypeVarchar(retType.Tp) { | ||
| continue | ||
| } | ||
| for row := iter.Begin(); row != iter.End(); row = iter.Next() { | ||
| if valLen := len(row.GetString(colIdx)); retType.Flen < valLen { | ||
| retType.Flen = valLen | ||
| } | ||
| } | ||
| } | ||
| chk.Append(e.result, 0, e.result.NumRows()) | ||
| return nil | ||
| } | ||
|
|
||
| // Close implements the Executor Close interface. | ||
| func (e *LocalLogReaderExecutor) Close() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (e *LocalLogReaderExecutor) fetchAll() error { | ||
| err := e.fetchData() | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (e *LocalLogReaderExecutor) fetchData() error { | ||
| for i := 0; i < 10; i++ { | ||
| if e.cnt >= e.limit { | ||
| break | ||
| } | ||
| item, err := e.se.Next() | ||
| if err != nil { | ||
| if err.Error() == "EOF" { | ||
| break | ||
| } else { | ||
| return errors.Trace(err) | ||
| } | ||
| } | ||
| data, err := e.parseData(item) | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
| row := chunk.MutRowFromDatums(data).ToRow() | ||
| e.result.AppendRow(row) | ||
| e.cnt++ | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (e *LocalLogReaderExecutor) parseData(data item.Item) ([]types.Datum, error) { | ||
| row := make([]types.Datum, 0, len(e.Columns)) | ||
| for _, col := range e.Columns { | ||
| switch col.Name.L { | ||
| case "address": | ||
| row = append(row, types.NewStringDatum(fmt.Sprintf("%s:%d", config.GetGlobalConfig().Status.StatusHost, config.GetGlobalConfig().Status.StatusPort))) | ||
| case "component": | ||
| row = append(row, types.NewStringDatum("tidb")) | ||
| case "filename": | ||
| row = append(row, types.NewStringDatum(data.GetFileName())) | ||
| case "time": | ||
| tm := types.Time{ | ||
| Time: types.FromGoTime(data.GetTime()), | ||
| Type: mysql.TypeDatetime, | ||
| Fsp: 0, | ||
| } | ||
| row = append(row, types.NewTimeDatum(tm)) | ||
| case "level": | ||
| row = append(row, types.NewStringDatum(log2.ParseLevelToStr(data.GetLevel()))) | ||
| case "content": | ||
| row = append(row, types.NewStringDatum(string(data.GetContent()))) | ||
| default: | ||
| data := types.NewDatum(nil) | ||
| row = append(row, data) | ||
| } | ||
| } | ||
| return row, nil | ||
| } |
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