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

I see you havily use NAME_CONST in your code. Just try not to use it. You know, mysql can be sometimes buggy (I also found several bugs), so I recommend don't rely on features which are not so common / well tested. It is related to column names, so maybe it locks something? Well it should't if it affects only the result, but who knows? This is suspicious. Moreover, this is marked as a function for internal use only.