i see a lot of connection errors in the mysql server log file:
2018-01-20T00:57:48.888433Z 15848 [Note] Aborted connection 15848 to db: 'xx' user: 'xx' host: 'xxx' (Got timeout reading communication packets)
The connections are closed after the idle timeout is reached (400 seconds).
As far as i understand the configuration, this should not happen, because the validation query should be executed before:
JIRA Version: 7.7 and 7.5.1.
I did some research and found there are other possibilities for this behavior:
At this point try the following:
Please also take a look at the following resources as well:
Let me know what you find. If this doesn't help let me know and we'll go from there.
>Do you see any pattern to the users being disconnected in this manner?
I do not see any pattern.
There is no load on the server. Most of the time jira is idle: no user is logged in.
I think the reason is
The client slept for longer than the defined wait_timeout or interactive_timeout seconds (which ends up causing the connection to sleep for wait_timeout seconds and then the connection gets forcibly closed by the server)
But i thought that "time-between-eviction-runs-millis" and "pool-test-while-idle" should wake up the client. It seems that this is not happening.
I changed the following settings:
Now, idle connections are closed and i do not see the error messages any more.
I seem to be seeing the same problem. This is also causing error messages on the JIRA side since it seems to try to use aborted idle connections, and then complains when they're dead (unsurprisingly). This always happens after a longer idle period, and once I refresh the page it goes away. The database server I use it with is the official mariadb docker container, largely in default configuration.
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