91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
// Copyright 2021 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 txn
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import (
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"context"
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"sync"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/pkg/sessionctx/binloginfo"
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"github.com/pingcap/tidb/pkg/util/logutil"
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"github.com/pingcap/tipb/go-binlog"
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"github.com/tikv/client-go/v2/tikv"
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"go.uber.org/zap"
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)
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type binlogExecutor struct {
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txn *tikv.KVTxn
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binInfo *binloginfo.BinlogInfo
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}
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func (e *binlogExecutor) Skip() {
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binloginfo.RemoveOneSkippedCommitter()
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}
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func (e *binlogExecutor) Prewrite(ctx context.Context, primary []byte) <-chan tikv.BinlogWriteResult {
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ch := make(chan tikv.BinlogWriteResult, 1)
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go func() {
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logutil.Eventf(ctx, "start prewrite binlog")
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bin := e.binInfo.Data
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bin.StartTs = int64(e.txn.StartTS())
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if bin.Tp == binlog.BinlogType_Prewrite {
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bin.PrewriteKey = primary
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}
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wr := e.binInfo.WriteBinlog(e.txn.GetClusterID())
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if wr.Skipped() {
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e.binInfo.Data.PrewriteValue = nil
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binloginfo.AddOneSkippedCommitter()
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}
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logutil.Eventf(ctx, "finish prewrite binlog")
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ch <- wr
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}()
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return ch
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}
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func (e *binlogExecutor) Commit(ctx context.Context, commitTS int64) {
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e.binInfo.Data.Tp = binlog.BinlogType_Commit
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if commitTS == 0 {
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e.binInfo.Data.Tp = binlog.BinlogType_Rollback
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}
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e.binInfo.Data.CommitTs = commitTS
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e.binInfo.Data.PrewriteValue = nil
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wg := sync.WaitGroup{}
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mock := false
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failpoint.Inject("mockSyncBinlogCommit", func(val failpoint.Value) {
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if val.(bool) {
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wg.Add(1)
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mock = true
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}
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})
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go func() {
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logutil.Eventf(ctx, "start write finish binlog")
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binlogWriteResult := e.binInfo.WriteBinlog(e.txn.GetClusterID())
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err := binlogWriteResult.GetError()
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if err != nil {
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logutil.BgLogger().Error("failed to write binlog",
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zap.Error(err))
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}
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logutil.Eventf(ctx, "finish write finish binlog")
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if mock {
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wg.Done()
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}
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}()
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if mock {
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wg.Wait()
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}
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}
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