In our firm Jira installed on linux server.But it down sometime and we couldn't find why its happaning.
After the restart it works fine.
So could you help which log file is better to collect the error info and how we can find the cause of the issue?
Caused by: com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericDataSourceException: Unable to esablish a connection with the database. (Communications link failure
The last packet successfully received from the server was 1 milliseconds ago. The last packet sent successfully to the server was 1 milliseconds ago.)
is this cause?
It seems that either you are having a network or database problem with is causing the connection to the DB fail. I'd check the database server health and logs to see if it the DB is oscilating from unhealthy to healthy state. In addition you can tune your dbconfig.xml to survive connection closures. You may refer thi KB: https://confluence.atlassian.com/display/JIRA/Surviving+Connection+Closures
Hope this helps!
the first thing that I suggest to do is to increase JVM parameters https://confluence.atlassian.com/x/CBc
This is a very usual approach to increase JIRA performances in order to avoid OutOfMemory issues.
Moreover, I suggest to install JAVA Melody plugins for jira monitoring.
Hope this helps,
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