【 TiDB 使用环境】生产环境
【 TiDB 版本】7.5.3
从TIDB server日志中，存在大量如下日志
[2024/10/16 17:16:45.760 +08:00] [INFO] [region_request.go:1531] ["send request failed, err: context canceled"] [conn=1774233796] [session_alias=] [req-ts=453265380011409445] [req-type=Cop] [region="{ region id: 174377, ver: 9458, confVer: 1811 }"] [replica-read-type=leader] [stale-read=false] [request-sender="{rpcError:context canceled,replicaSelector: replicaSelector{selectorStateStr: accessKnownLeader, cacheRegionIsValid: true, replicaStatus: [peer: 174378, store: 98030, isEpochStale: false, attempts: 0, replica-epoch: 2, store-epoch: 2, store-state: resolved, store-liveness-state: reachable peer: 174379, store: 1, isEpochStale: false, attempts: 1, replica-epoch: 1, store-epoch: 1, store-state: resolved, store-liveness-state: reachable peer: 174380, store: 98031, isEpochStale: false, attempts: 0, replica-epoch: 0, store-epoch: 0, store-state: resolved, store-liveness-state: reachable]}}"] [retry-times=0] [total-backoff-ms=0] [total-backoff-times=0] [max-exec-timeout-ms=60000] [total-region-errors=]
[2024/10/16 17:16:45.760 +08:00] [INFO] [region_request.go:1531] ["send request failed, err: context canceled"] [conn=1774233796] [session_alias=] [req-ts=453265380011409445] [req-type=Cop] [region="{ region id: 161767, ver: 9458, confVer: 1835 }"] [replica-read-type=leader] [stale-read=false] [request-sender="{rpcError:context canceled,replicaSelector: replicaSelector{selectorStateStr: accessKnownLeader, cacheRegionIsValid: true, replicaStatus: [peer: 161769, store: 98030, isEpochStale: false, attempts: 0, replica-epoch: 2, store-epoch: 2, store-state: resolved, store-liveness-state: reachable peer: 18183206, store: 8, isEpochStale: false, attempts: 0, replica-epoch: 0, store-epoch: 0, store-state: resolved, store-liveness-state: reachable peer: 18399917, store: 98032, isEpochStale: false, attempts: 1, replica-epoch: 0, store-epoch: 0, store-state: resolved, store-liveness-state: reachable]}}"] [retry-times=0] [total-backoff-ms=0] [total-backoff-times=0] [max-exec-timeout-ms=60000] [total-region-errors=]
[2024/10/16 17:16:45.760 +08:00] [INFO] [region_request.go:1531] ["send request failed, err: context canceled"] [conn=1774233796] [session_alias=] [req-ts=453265380011409445] [req-type=Cop] [region="{ region id: 173975, ver: 9457, confVer: 1823 }"] [replica-read-type=leader] [stale-read=false] [request-sender="{rpcError:context canceled,replicaSelector: replicaSelector{selectorStateStr: accessKnownLeader, cacheRegionIsValid: true, replicaStatus: [peer: 173978, store: 1, isEpochStale: false, attempts: 1, replica-epoch: 1, store-epoch: 1, store-state: resolved, store-liveness-state: reachable peer: 349498, store: 98033, isEpochStale: false, attempts: 0, replica-epoch: 0, store-epoch: 0, store-state: resolved, store-liveness-state: reachable peer: 17675950, store: 98030, isEpochStale: false, attempts: 0, replica-epoch: 2, store-epoch: 2, store-state: resolved, store-liveness-state: reachable]}}"] [retry-times=0] [total-backoff-ms=0] [total-backoff-times=0] [max-exec-timeout-ms=60000] [total-region-errors=]
之前没有关注这个，不知道这个日志对tidb 性能有什么影响