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https://issues.apache.org/jira/browse/ROL-2175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David M. Johnson resolved ROL-2175.
-----------------------------------
Assignee: David M. Johnson
Resolution: Fixed
> mysql connection errors due to no validation
> --------------------------------------------
>
> Key: ROL-2175
> URL: https://issues.apache.org/jira/browse/ROL-2175
> Project: Apache Roller
> Issue Type: Bug
> Reporter: Chris Lambertus
> Assignee: David M. Johnson
> Priority: Major
>
> Pursuant to INFRA-22461, despite having autoReconnect=true in our JDBC URI,
> we still see these failures constantly:
> DatabaseException
> Internal Exception: com.mysql.cj.jdbc.exceptions.CommunicationsException: The
> last packet successfully received from the server was 85,486,668 milliseconds
> ago. The last packet sent successfully to the server was 85,486,674
> milliseconds ago. is longer than the server configured value of
> 'wait_timeout'. You should consider either expiring and/or testing connection
> validity before use in your application, increasing the server configured
> values for client timeouts, or using the Connector/J connection property
> 'autoReconnect=true' to avoid this problem.
> Error Code: 0
>
> Most java applications using the default Tomcat JDBC Resource allow for a
> validationQuery parameter such as "SELECT 1" to keep the database connection
> alive. Can such a parameter be added to roller to avoid database timeouts?
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