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ddl, util/codec: fix add index OOM and prevent panic in logging #29925

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merged 6 commits into from
Nov 24, 2021
Merged

ddl, util/codec: fix add index OOM and prevent panic in logging #29925

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51f199c
ddl, util/codec: prevent panic in logging
tangenta Nov 18, 2021
9cbf918
check recover result
tangenta Nov 19, 2021
79396e4
address comment
tangenta Nov 19, 2021
f998c6e
add test for DecodeRowKey
tangenta Nov 19, 2021
c024760
Merge branch 'master' into fix-decode-panic
ti-chi-bot Nov 23, 2021
b181b6f
Merge branch 'master' into fix-decode-panic
ti-chi-bot Nov 24, 2021
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6 changes: 6 additions & 0 deletions ddl/backfilling.go
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Original file line number Diff line number Diff line change
Expand Up @@ -425,6 +425,12 @@ func (w *worker) handleReorgTasks(reorgInfo *reorgInfo, totalAddedCount *int64,
}

func tryDecodeToHandleString(key kv.Key) string {
defer func() {
r := recover()
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logutil.BgLogger().Warn("tryDecodeToHandleString panic",
zap.Any("recover()", r),
zap.Binary("key", key))
}()
handle, err := tablecodec.DecodeRowKey(key)
if err != nil {
recordPrefixIdx := bytes.Index(key, []byte("_r"))
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2 changes: 1 addition & 1 deletion util/codec/codec.go
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Expand Up @@ -962,7 +962,7 @@ func peek(b []byte) (length int, err error) {
return 0, errors.Trace(err)
}
length += l
if length < 0 {
if length <= 0 {
return 0, errors.New("invalid encoded key")
} else if length > originLength {
return 0, errors.Errorf("invalid encoded key, "+
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