Jonathan Parkin <jonathan.parkin@xxxxxxxxxxxxx> writes: > I have a reasonably large, live, system-critical database. A perl > script on another machine connects and issues a sequence of commands in > a transaction, the last of which is a delete. The delete never returns > a response, and the connection never times out. The postgres process > handling the delete is in a scheduled state, but stracing it produces no > output at all. Sounds like it's stuck in a tight loop. Can you attach to the postgres process with gdb and get a stack trace to find out where the loop is? If this is a specific row causing the issue, then I'd wonder about data corruption of some sort. It might be worth looking at the table with pg_filedump (from http://sources.redhat.com/rhdb/). regards, tom lane
