MySQL InnoDB hangs on waiting for table-level locks

Question

I have a big production web-application (Glassfish 3.1 + MySQL 5.5). All tables are InnoDB. Once per several days application totally hangs. SHOW FULL PROCESSLIST

Answer 1

This may seem simple, but you don't have a long-running select statement that is possibly locking out updates and inserts? There's no query that's actually running and not locked?