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MySQL Router Did Not Close Connections When They Were Closed By The Server (Doc ID 2926274.1)

Last updated on FEBRUARY 06, 2023

Applies to:

MySQL Router - Version 8.0 and later
Information in this document applies to any platform.


MySQL Router (version 8.0.29 to 8.0.31) does not close a connection when a destination server closes the connection. If the client on the other end does not close the invalid connection, the connection will keep established forever. If those invalid connections accumulate to reach a routing's max_connections, new connections for that routing will be rejected. There should be WARNING message like the following in the log file:

This issue does not happen on MySQL Router 8.0.28 or prior versions.


 Upgrade MySQL Router to version 8.0.29, 8.0.30 or 8.0.31.


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