Confluence Does Not Start with 'Detected tables with non-default character encoding/collation' Message

Still need help?

The Atlassian Community is here for you.

Ask the community


Confluence does not start up when using MySQL database. One of the following errors is displayed:

  • Detected tables with non-default character encoding.
  • Detected tables with non-default collation.


Confluence 5.2.4 added a check for tables with character encoding or collation setting that differs from the database default settings. Using non-default setting in a table can cause upgrade process to fail and leave the database in an inconsistent state.


Please see the How to Fix the Collation and Character Set of a MySQL Database manually knowledge base article and ensure that the database runs with unified character encoding and collation settings at all levels: database, table, and column.

Last modified on Mar 24, 2017

Was this helpful?

Provide feedback about this article
Powered by Confluence and Scroll Viewport.