client: skip update backward safets #393
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Signed-off-by: yisaer <disxiaofei@163.com>
JmPotato
approved these changes
Dec 13, 2021
disksing
reviewed
Dec 13, 2021
| @@ -540,6 +540,11 @@ func (s *KVStore) updateSafeTS(ctx context.Context) { | |||
| return | |||
| } | |||
| safeTS := resp.Resp.(*kvrpcpb.StoreSafeTSResponse).GetSafeTs() | |||
| preSafeTS := s.getSafeTS(storeID) | |||
| if preSafeTS > safeTS { | |||
| metrics.TiKVSafeTSUpdateCounter.WithLabelValues("skip", storeIDStr).Inc() | |||
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need to record TiKVMinSafeTSGapSeconds?
Signed-off-by: yisaer <disxiaofei@163.com>
disksing
approved these changes
Dec 13, 2021
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Signed-off-by: yisaer disxiaofei@163.com
During tikv restarted, the safeTS might be 0 in a short period. This requests forbid tidb update backward safets.