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Deadlock detected. Deadlock (argh!)

Posted on 1998-03-21
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Last Modified: 2008-02-01
I have a huge problem, I have some (as in more than one) applications each application is multithreaded and they may not even run on the same machine, these apps access the same interbase database and the same tables, this created dreadlocks (not really, but BDE thinks so) so BDE throws exceptions all over the place, I have gated all my Tquery.execsql and Tquery.open  calls with try...except blocks where I handle any exceptions, but to no avail, I cannot find the exact call that gennerates the exception.

My question is this: how do I catch the deadlock-exceptions and what calls cause them?
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Question by:ffrand
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RJENKINS earned 340 total points
ID: 1360671
Try this in the BDE Admin in the Interbase driver config

From SQL Links Tech Support - www.borland.com
---
The Interbase SQL Links driver can be set to use "soft commit"
instead of "hard commit" by setting the Interbase DRIVER FLAGS to
either 4096 or 4068 (please see the READLINK.TXT fro details.)  
The current (BDE 4.0) drawback to this (at least until the next
version of the Interbase SQL Links driver comes out [v4.01]) is
that NO WAIT is used with NO RECORD VERSION which can result in
immediate deadlocks.By adding 512 to the DRIVER FLAGS param you are setting the
driver default back to a REPEATABLE READ (RECORD VERSION)
isolation level which helps to avoid a "deadlock detected error" condition.
---

I use 4608 and it seems to have solved our problems
(D3 C/S and BDE 4.51)

Hope this helps
RCJ
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