Oracle-L: Re: Enqueue deadlock

From: <Jared.Still_at_radisys.com>
Date: Thu, 11 Jul 2002 11:24:56 -0800
Message-ID: <F001.00495790.20020711112456@fatcity.com>

You can't really avoid them, unless of course your database is down.

If what you really mean is that you're application is frequently waiting on enqueue locks, then you need to find out why that is happening.

A common reason is that foreign keys are created without supporting indexes. Another reason is poor locking strategy. e.g. different sections
of the code are locking the same tables in different orders.

Yet another reason is a poorly designed application that locks table row(s) for update during user think time ( or lunch time ).

HTH Jared

"Shishir Kumar Mishra" <shishir_at_agnisoft.com> Sent by: root_at_fatcity.com
07/11/2002 04:43 AM
Please respond to ORACLE-L

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        Enqueue deadlock

Hi !
How to avoid enqueue locks ?

regards...
Shishir Kumar Mishra
Agni Software (P) Ltd.
www.agnisoft.com

Vidya Dadaati Viniyam

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Author:
INET: Jared.Still_at_radisys.com

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