The MySQL Databases page shows "The MySQL server is currently offline. adminbin Cpanel/cpmysql/DBCACHE: exit 255"

Symptoms

When accessing "MySQL Databases" in cPanel, you receive an error similar to the following.

The MySQL server is currently offline.
adminbin Cpanel/cpmysql/DBCACHE: exit 255"

You will also see an error similar to the following in the cPanel error log.

  Cpanel::Exception::Database::CpuserNotInMap/(XID xfttxq) The cPanel user “username”
  does not exist in the database map.

Description

The error occurs when there is an issue with the user's database map. This can be fixed with the rebuild_dbmap script.

Workaround

1. Access the server's command line as the 'root' user via SSH or "Terminal" in WHM.
2. Run the rebuild_dbmap script.

   /usr/local/cpanel/scripts/rebuild_dbmap $user

   Please note that "$user" must be replaced with the cPanel username.

Additional resources

The rebuild_dbmap script