Symptoms
- Sites are loading slow. Apache periodically is not responding.
- Site uses Mysql and in MySQL log below errors can be found:
# grep "is marked as crashed and should be repaired" /var/log/mysql/error.log
[ERROR] /usr/sbin/mysqld: Table './mysql/user' is marked as crashed and should be repaired
[ERROR] /usr/sbin/mysqld: Table './somedb/table' is marked as crashed and should be repaired
Cause
Corrupted databases.
Resolution
Restore databases from backup or try to repair database tables.