具体查到的日志是[WARN]级别的日志里面有提示binlog写入失败：
[2022/11/11 18:22:06.116 +08:00] [INFO] [region_cache.go:839] ["switch region leader to specific leader due to kv return NotLeader"] [regionID=1133841] [currIdx=2] [leaderStoreID=4]
[2022/11/11 18:22:06.635 +08:00] [INFO] [client.go:570] ["[pumps client] write detect binlog to unavailable pump success"] [NodeID=172.16.17.53:8250]
[2022/11/11 18:22:06.636 +08:00] [WARN] [client.go:573] ["[pumps client] write detect binlog to pump failed"] [NodeID=172.16.32.16:8250] [error="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing dial tcp 172.16.32.16:8250: connect: connection refused\""]
[2022/11/11 18:22:06.636 +08:00] [INFO] [client.go:397] ["[pumps client] set pump available"] [NodeID=172.16.17.53:8250] [available=true]
[2022/11/11 18:22:07.336 +08:00] [INFO] [gc_worker.go:237] ["[gc worker] there's already a gc job running, skipped"] ["leaderTick on"=610a90fcf340091]
所以可以确认是网络问题导致的对吧？