Support Health Check issues within Confluence using MySQL database
Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.
Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Confluence is using MySQL database and may be exhibiting the following issue:
- Unexpected crashes
- Error messages in the Health Check menu:
The following error message appears in the atlassian-confluence.log
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-abc.supporthealthchecks' at line 1Diagnosis
Diagnostic Steps
Check if Confluence database has an illegal character hyphen "-" in it.
From the example above, Confluence has been connected to a database with the name "confluence-abc"
Cause
The healthcheck plugin cannot handle a mysql database name with a hyphen in it.
Resolution
Rename the database so that it does not contain hyphens "-"