Too Many TIME_WAIT Connections
(Doc ID 1968865.1)
Last updated on APRIL 05, 2019
Applies to:MySQL Server - Version 5.1 and later
Some TCP packets may arrive long time after connection is closed. This may confuse further TCP communication when new connection is established on that socket.
OS works around this problem by keeping socket in special state TIME_WAIT for some time.
netstat shows dozens thousand MySQL connections in TIME_WAIT state.
It may result in lack of free sockets.
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