Hi guys,

I'm looking for some ideas how to find what is causing this lock.

I have 2 production databases that process multiple insert/update statements. There is one background process that does all these modifications 24h/day.

The problem is that with one of these databases almost every morning when client tries to connect it runs series of inserts in one table. And during that process the insert is blocked by something.

The other database experiences similar problem but there the lock is on another table that as I said earlier modified trough the whole day.

If such a lock happens it locks all similar requests to these tables.

I need to shutdown the main process and run Sweep in order to remove the leftover from all transactions executed after initially locked statement transaction.

So I'm looking for ideas how to diagnose this problem? what I can do to pinpoint the source of the problem?

I'm using Firebird 2.1.6 Classic on Linux.

I have same databases on other production setups that does not have this problem. The difference there is that they don't have that background process running on these setups.

Thanks in advance