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Cirrus

Aug 17, 2018

MySQL active connection never bleed off to other pool member

I am running galera MySQL behind F5 with performance Layer 4 type and i have setup 3 mysql node in pool member with Priority so only 1 mysql node will be used and other two will be standby. ...

MVP

Aug 17, 2018

The BIG-IP is sending a TCP Reset the moment the pool member with priority 100 goes offline/down.

(See article K15095 ).

The BIG-IP system sends RST or ICMP messages to reset active connections and removes them from the BIG-IP connection table.

Note: This selection is named "reset" instead of "reject" when using the TMOS Shell (tmsh).

And it seems your application is not trying to reconnect when it receives this reset.

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MySQL active connection never bleed off to other pool member

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