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lightning: make OpLevelOptional suppress the error of DoChecksum (#45486) #45865

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merged 4 commits into from
Aug 15, 2023
Merged

lightning: make OpLevelOptional suppress the error of DoChecksum (#45486) #45865

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6e06cdc
This is an automated cherry-pick of #45486
lyzx2001 Aug 7, 2023
ad54ea6
lightning: make OpLevelOptional suppress the error of DoChecksum
lyzx2001 Aug 14, 2023
08433b0
lightning: make OpLevelOptional suppress the error of DoChecksum
lyzx2001 Aug 14, 2023
7acb6aa
lightning: make OpLevelOptional suppress the error of DoChecksum
lyzx2001 Aug 15, 2023
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35 changes: 27 additions & 8 deletions br/pkg/lightning/restore/table_restore.go
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,8 @@ import (
"github.com/pingcap/tidb/util/mathutil"
"go.uber.org/multierr"
"go.uber.org/zap"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)

type TableRestore struct {
Expand Down Expand Up @@ -800,11 +802,27 @@ func (tr *TableRestore) postProcess(
return false, err
}
err = tr.compareChecksum(remoteChecksum, localChecksum)
failpoint.Inject("checksum-error", func() {
tr.logger.Info("failpoint checksum-error injected.")
remoteChecksum = nil
err = status.Error(codes.Unknown, "Compare checksum meets error.")
})
// with post restore level 'optional', we will skip checksum error
if rc.cfg.PostRestore.Checksum == config.OpLevelOptional {
if err != nil {
tr.logger.Warn("compare checksum failed, will skip this error and go on", log.ShortError(err))
err = nil
if err != nil {
if rc.cfg.PostRestore.Checksum != config.OpLevelOptional {
return false, err
}
tr.logger.Warn("do checksum failed, will skip this error and go on", log.ShortError(err))
err = nil
}
if remoteChecksum != nil {
err = tr.compareChecksum(remoteChecksum, localChecksum)
// with post restore level 'optional', we will skip checksum error
if rc.cfg.PostRestore.Checksum == config.OpLevelOptional {
if err != nil {
tr.logger.Warn("compare checksum failed, will skip this error and go on", log.ShortError(err))
err = nil
}
}
}
} else {
Expand Down Expand Up @@ -846,11 +864,12 @@ func (tr *TableRestore) postProcess(
case forcePostProcess || !rc.cfg.PostRestore.PostProcessAtLast:
err := tr.analyzeTable(ctx, rc.tidbGlue.GetSQLExecutor())
// witch post restore level 'optional', we will skip analyze error
if rc.cfg.PostRestore.Analyze == config.OpLevelOptional {
if err != nil {
tr.logger.Warn("analyze table failed, will skip this error and go on", log.ShortError(err))
err = nil
if err != nil {
if rc.cfg.PostRestore.Analyze != config.OpLevelOptional {
return false, err
}
tr.logger.Warn("analyze table failed, will skip this error and go on", log.ShortError(err))
err = nil
}
saveCpErr := rc.saveStatusCheckpoint(ctx, tr.tableName, checkpoints.WholeTableEngineID, err, checkpoints.CheckpointStatusAnalyzed)
if err = firstErr(err, saveCpErr); err != nil {
Expand Down
3 changes: 3 additions & 0 deletions br/tests/lightning_routes/config.toml
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Expand Up @@ -8,3 +8,6 @@ schema-pattern = "routes_a*"
table-pattern = "t*"
target-schema = "routes_b"
target-table = "u"

[post-restore]
checksum = "optional"
5 changes: 5 additions & 0 deletions br/tests/lightning_routes/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,17 @@

set -eux

echo "testing checksum-error..."
export GO_FAILPOINTS="github.com/pingcap/tidb/br/pkg/lightning/restore/checksum-error=1*return()"

run_sql 'DROP DATABASE IF EXISTS routes_a0;'
run_sql 'DROP DATABASE IF EXISTS routes_a1;'
run_sql 'DROP DATABASE IF EXISTS routes_b;'

run_lightning

echo "test checksum-error success!"

run_sql 'SELECT count(1), sum(x) FROM routes_b.u;'
check_contains 'count(1): 4'
check_contains 'sum(x): 259'
Expand Down