mirror of https://github.com/tikv/client-go.git
109 lines
3.7 KiB
Go
109 lines
3.7 KiB
Go
// Copyright 2021 TiKV Authors
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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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// NOTE: The code in this file is based on code from the
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// TiDB project, licensed under the Apache License v 2.0
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//
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// https://github.com/pingcap/tidb/tree/cc5e161ac06827589c4966674597c137cc9e809c/store/tikv/cleanup.go
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//
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// Copyright 2020 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 transaction
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import (
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"github.com/pingcap/kvproto/pkg/kvrpcpb"
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"github.com/pkg/errors"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/tikv/client-go/v2/config/retry"
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"github.com/tikv/client-go/v2/internal/client"
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"github.com/tikv/client-go/v2/internal/logutil"
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"github.com/tikv/client-go/v2/metrics"
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"github.com/tikv/client-go/v2/tikvrpc"
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"go.uber.org/zap"
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)
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type actionCleanup struct{ isInternal bool }
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var _ twoPhaseCommitAction = actionCleanup{}
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func (action actionCleanup) String() string {
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return "cleanup"
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}
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func (action actionCleanup) tiKVTxnRegionsNumHistogram() prometheus.Observer {
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if action.isInternal {
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return metrics.TxnRegionsNumHistogramCleanupInternal
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}
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return metrics.TxnRegionsNumHistogramCleanup
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}
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func (action actionCleanup) handleSingleBatch(c *twoPhaseCommitter, bo *retry.Backoffer, batch batchMutations) error {
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req := tikvrpc.NewRequest(tikvrpc.CmdBatchRollback, &kvrpcpb.BatchRollbackRequest{
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Keys: batch.mutations.GetKeys(),
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StartVersion: c.startTS,
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}, kvrpcpb.Context{
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Priority: c.priority,
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SyncLog: c.syncLog,
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ResourceGroupTag: c.resourceGroupTag,
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MaxExecutionDurationMs: uint64(client.MaxWriteExecutionTime.Milliseconds()),
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RequestSource: c.txn.GetRequestSource(),
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ResourceControlContext: &kvrpcpb.ResourceControlContext{
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ResourceGroupName: c.resourceGroupName,
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},
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})
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if c.resourceGroupTag == nil && c.resourceGroupTagger != nil {
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c.resourceGroupTagger(req)
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}
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resp, err := c.store.SendReq(bo, req, batch.region, client.ReadTimeoutShort)
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if err != nil {
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return err
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}
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regionErr, err := resp.GetRegionError()
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if err != nil {
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return err
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}
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if regionErr != nil {
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err = bo.Backoff(retry.BoRegionMiss, errors.New(regionErr.String()))
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if err != nil {
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return err
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}
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return c.cleanupMutations(bo, batch.mutations)
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}
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if keyErr := resp.Resp.(*kvrpcpb.BatchRollbackResponse).GetError(); keyErr != nil {
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err = errors.Errorf("session %d 2PC cleanup failed: %s", c.sessionID, keyErr)
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logutil.BgLogger().Debug("2PC failed cleanup key",
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zap.Error(err),
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zap.Uint64("txnStartTS", c.startTS))
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return err
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}
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return nil
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}
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func (c *twoPhaseCommitter) cleanupMutations(bo *retry.Backoffer, mutations CommitterMutations) error {
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return c.doActionOnMutations(bo, actionCleanup{isInternal: c.txn.isInternal()}, mutations)
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}
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