Warn in tidb.log: read packet failed, closing this connection

Translated
1

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tidb.log 中warn: read packet failed colose this connection

| username: xiaohetao

As shown in the tidb.log, there is a warning: read packet failed, close this connection error="read tcp x.x.x.x:4000 - mapped address read: connection reset by peer.

Each tidb.log on every TiDB node contains this content.

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| username: ti-tiger | Original post link

Please check if there are any issues with the network communication of the node, and whether the firewall and SELinux are configured.

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| username: xiaohetao | Original post link

Found the problem, it was caused by abnormal network load.

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| username: xiaohetao | Original post link

Thank you!