RE: UL - contention Wait Event

From: Kerber, Andrew W. <Andrew.Kerber_at_umb.com>
Date: Mon, 11 Jun 2007 13:01:49 -0500
Message-ID: <D40740337A3B524FA81DB598D2D7EBB307EF02FD@x6009a.umb.corp.umb.com>

Are your programmers using a 'select .. for update', then waiting on user input? That would easily cause that problem.

-----Original Message-----

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jo¾e Senegacnik Sent: Monday, June 11, 2007 12:40 PM
To: oracle-l_at_freelists.org
Subject: RE: UL - contention Wait Event

UL stands for 'User-defined Lock'. Obviously some of your sessions are waiting because of user locks. See DBMS_LOCK package.

Regards, Joze

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Dean Richards Sent: 11. junij 2007 18:31
To: oracle-l_at_freelists.org
Subject: enq: UL - contention Wait Event

Does anyone know what the wait event named "enq: UL - contention" means? There is nothing in Metalink or anywhere that I can find that gives the definition. I have a session that waits more than 90% of its time on this event.

Thanks.

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http://www.freelists.org/webpage/oracle-l Received on Mon Jun 11 2007 - 13:01:49 CDT