select timediff(now(),tidb_parse_tso(substr(checkpoint,32,18))) from tidb_binlog.checkpoint
可以查看上下游集群同步时间的时间差
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select timediff(now(),tidb_parse_tso(substr(checkpoint,32,18))) from tidb_binlog.checkpoint
可以查看上下游集群同步时间的时间差