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restore: add local checksum log #153

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Mar 27, 2019
Merged

restore: add local checksum log #153

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6cdf061
restore: add local checksum log
lonng Mar 27, 2019
6b5cd4c
Update lightning/restore/restore.go
kennytm Mar 27, 2019
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19 changes: 10 additions & 9 deletions lightning/restore/restore.go
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Original file line number Diff line number Diff line change
Expand Up @@ -824,12 +824,20 @@ func (t *TableRestore) postProcess(ctx context.Context, rc *RestoreController, c
}

// 4. do table checksum
var localChecksum verify.KVChecksum
for _, engine := range cp.Engines {
for _, chunk := range engine.Chunks {
localChecksum.Add(&chunk.Checksum)
}
}
common.AppLogger.Infof("[%s] local checksum [sum:%d, kvs:%d, size:%v]",
t.tableName, localChecksum.Sum(), localChecksum.SumKVS(), localChecksum.SumSize())
if cp.Status < CheckpointStatusChecksummed {
if !rc.cfg.PostRestore.Checksum {
common.AppLogger.Infof("[%s] Skip checksum.", t.tableName)
rc.saveStatusCheckpoint(t.tableName, wholeTableEngineID, nil, CheckpointStatusChecksumSkipped)
} else {
err := t.compareChecksum(ctx, rc.tidbMgr.db, cp)
err := t.compareChecksum(ctx, rc.tidbMgr.db, localChecksum)
rc.saveStatusCheckpoint(t.tableName, wholeTableEngineID, err, CheckpointStatusChecksummed)
if err != nil {
common.AppLogger.Errorf("[%s] checksum failed: %v", t.tableName, err.Error())
Expand Down Expand Up @@ -1198,14 +1206,7 @@ func (tr *TableRestore) importKV(ctx context.Context, closedEngine *kv.ClosedEng
}

// do checksum for each table.
func (tr *TableRestore) compareChecksum(ctx context.Context, db *sql.DB, cp *TableCheckpoint) error {
var localChecksum verify.KVChecksum
for _, engine := range cp.Engines {
for _, chunk := range engine.Chunks {
localChecksum.Add(&chunk.Checksum)
}
}

func (tr *TableRestore) compareChecksum(ctx context.Context, db *sql.DB, localChecksum verify.KVChecksum) error {
start := time.Now()
remoteChecksum, err := DoChecksum(ctx, db, tr.tableName)
dur := time.Since(start)
Expand Down