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Re: drop table very slow in busy system EE 9.2.0.3

From: TurkBear <john.greco_at_dot.state.mn.us>
Date: Thu, 24 Jul 2003 11:19:00 -0500
Message-ID: <om10iv8kg00vtcarg1sac22ka965di7ovn@4ax.com>

Or, try truncating the table first then dropping it...

Brian Peasland <dba_at_remove_spam.peasland.com> wrote:

>To get to the bottom of this problem, I'd start an SQL*Plus session. I'd
>then issue:
>
>ALTER SESSION SET SQL_TRACE=TRUE;
>
>Then, I'd issue my DROP TABLE command. When done, exit SQL*Plus. A dump
>file will be created in USER_DUMP_DEST. This dump file will contain all
>of the SQL statements issued by the system on your behalf. You can get
>an idea of exactly what SQL statement(s) were taking so long to run.
>
>Additionally, you will probably want to look at V$SESSION_WAIT and
>V$SESSION_EVENT to see where the bottlenecks lie for that specific
>session.
>
>
>HTH,
>Brian
>
>Anton Dischner wrote:
>>
>> Hi,
>>
>> we are running Oracle EE 9.2.0.3 on Linux 8.2 kernel 2.4.20-64GB-SMP
>> Fujitsu-Siemens dual Xeon 2,8 GHz, 2 GB RAM, RAID 5.
>> Shared pool standard 240 MB, Buffer cache 608 MB standard, no
>> archivelog.
>>
>> If the system is busy (huge import)
>> a drop table takes from 5 minutes to 20 minutes?
>>
>> In Oracle 8.1.7 it was done in 1-20 seconds!
>>
>> Anything wrong with undo time 10 hours?
>>
>> How much do you enter here?
>>
>> thanks in advance,
>>
>> Toni
>> --
>> +--------------------------------------------------------------------+
>> | Anton Dischner, Unix admin, Oracle-DBA Phone: +49 89 70953202
>> | Institut fuer Klinische Chemie Fax : +49 89 70958888
>> | Klinikum Grosshadern Home : +49 89 69708766
>> | Ludwig Maximilians Universitaet Muenchen Mobil: +49 172 8388880
>> | 81366 Muenchen Germany
>> | Marchioninistr. 15 dischner at klch.med.uni-muenchen.de
>> +--------------------------------------------------------------------+
Received on Thu Jul 24 2003 - 11:19:00 CDT

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