Return-Path: Received: from newsfeed.cts.com (newsfeed.cts.com [209.68.248.164]) by naude.co.za (8.11.2/8.11.2) with SMTP id g5SD9Cp31269 for ; Fri, 28 Jun 2002 09:09:12 -0400 Received: from fatcity.UUCP (uucp@localhost) by newsfeed.cts.com (8.9.3/8.9.3) with UUCP id WAA74009; Thu, 27 Jun 2002 22:06:11 -0700 (PDT) Received: by fatcity.com (26-Feb-2001/v1.0g-b71/bab) via UUCP id 0048B2FC; Thu, 27 Jun 2002 21:38:20 -0800 Message-ID: Date: Thu, 27 Jun 2002 21:38:20 -0800 To: Multiple recipients of list ORACLE-L X-Comment: Oracle RDBMS Community Forum X-Sender: Chetan Sender: root@fatcity.com Reply-To: ORACLE-L@fatcity.com Errors-To: ML-ERRORS@fatcity.com From: Chetan Subject: Re:Oracle Performance Tuning steps Organization: Fat City Network Services, San Diego, California X-ListServer: v1.0g, build 71; ListGuru (c) 1996-2001 Bruce A. Bergman Precedence: bulk Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="0-633695350-1025238949=:90527" --0-633695350-1025238949=:90527 Content-Type: text/plain; charset=us-ascii Dick , Thanks a ton for ur feedback. I ran UTLBSTAT/UTLESTAT and found out that the problem was with memory. Then I went and queried V$SGASTAT, V$SQLAREA, V$SQLTEXT. Can u tell me if there can be any other problems ? I found out later that there were some indexes added afterwards. Thanks nyways. Chetan dgoulet@vicr.com wrote:Chetan, First questions, What changed? Did someone add/delete an index? Was there an oversized data load done? When were the statistics, if present, last computed? Has a new program/application been added to the server? Did a memory bank go offline? Did a disk interface card go offline? I use HP's HP-UX boxes as well, except most of my DB's are 10 times larger then yours. Just about everytime something like that happens, especially all of a sudden, one of those questions is the cause. The last item I'd go looking for, have only had one instance of it so far, is a unrestricted user who released "the query from HELL" into the database as a "one time requirement". If you can find him/her I've a used gallows rope is still here, one usage only. Dick Goulet ____________________Reply Separator____________________ Author: Chetan Date: 6/26/2002 2:18 AM Hi guys , Need some help. Actually we are looking here at a Oracle 8.1.7 db on HP-UNIX. The application was running fine uptil yesterday. Suddenly a part of the appln is running extremely slow. I can not figure what might be the problem. Wanted to track this down asap. Here is some information about the db. Database size - 20GB Optimizer - CHOOSE Disk Structure - RAID 1+0 No. of processors - 4 Block Size - 8K Archivelog mode : ARCHIVELOG Please tell me what should be the ideal way I should try to trace the problem. I thought of running UTLBSTAT/UTLESTAT or STATSPACK and asked the user to run that part of the appln. Has anybody worked with STATSPACK before ? Can anybody tell me what should accurate and fastest way to hunt down the problem ? I think its something to do with indexes or changes in the queries. Also can someone tell me the ideal backup strategy for this database considering the fact that it's a 24x7 system. Thanks in advance . Chetan Chindarkar --------------------------------- Do You Yahoo!? Sign-up for Video Highlights of 2002 FIFA World Cup Hi guys , Need some help. Actually we are looking here at a Oracle 8.1.7 db on HP-UNIX. The application was running fine uptil yesterday. Suddenly a part of the appln is running extremely slow. I can not figure what might be the problem. Wanted to track this down asap. Here is some information about the db. Database size - 20GB Optimizer - CHOOSE Disk Structure - RAID 1+0 No. of processors - 4 Block Size - 8K Archivelog mode : ARCHIVELOG Please tell me what should be the ideal way I should try to trace the problem. I thought of running UTLBSTAT/UTLESTAT or STATSPACK and asked the user to run that part of the appln. Has anybody worked with STATSPACK before ? Can anybody tell me what should accurate and fastest way to hunt down the problem ? I think its something to do with indexes or changes in the queries. Also can someone tell me the ideal backup strategy for this database considering the fact that it's a 24x7 system. Thanks in advance . Chetan Chindarkar --------------------------------- Do You Yahoo!? href="http://rd.yahoo.com/welcome/*http://fifaworldcup.yahoo.com/fc/en/spl">Sign -up for Video Highlights of 2002 FIFA World Cup -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: dgoulet@vicr.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). --------------------------------- Do You Yahoo!? Sign-up for Video Highlights of 2002 FIFA World Cup --0-633695350-1025238949=:90527 Content-Type: text/html; charset=us-ascii

Dick ,

Thanks a ton for ur feedback. I ran UTLBSTAT/UTLESTAT and found out that the problem was with memory. Then I went and queried V$SGASTAT, V$SQLAREA, V$SQLTEXT. Can u tell me if there can be any other problems ? I found out later that there were some indexes added afterwards.

Thanks nyways.

Chetan

 dgoulet@vicr.com wrote:

Chetan,

First questions, What changed? Did someone add/delete an index? Was there
an oversized data load done? When were the statistics, if present, last
computed? Has a new program/application been added to the server? Did a memory
bank go offline? Did a disk interface card go offline?

I use HP's HP-UX boxes as well, except most of my DB's are 10 times larger
then yours. Just about everytime something like that happens, especially all of
a sudden, one of those questions is the cause. The last item I'd go looking
for, have only had one instance of it so far, is a unrestricted user who
released "the query from HELL" into the database as a "one time requirement".
If you can find him/her I've a used gallows rope is still here, one usage only.

Dick Goulet

____________________Reply Separator____________________
Author: Chetan
Date: 6/26/2002 2:18 AM


Hi guys ,

Need some help. Actually we are looking here at a Oracle 8.1.7 db on HP-UNIX.
The application was running fine uptil yesterday. Suddenly a part of the appln
is running extremely slow. I can not figure what might be the problem. Wanted to
track this down asap.

Here is some information about the db.

Database size - 20GB

Optimizer - CHOOSE

Disk Structure - RAID 1+0

No. of processors - 4

Block Size - 8K

Archivelog mode : ARCHIVELOG

Please tell me what should be the ideal way I should try to trace the problem. I
thought of running UTLBSTAT/UTLESTAT or STATSPACK and asked the user to run that
part of the appln. Has anybody worked with STATSPACK before ?

Can anybody tell me what should accurate and fastest way to hunt down the
problem ? I think its something to do with indexes or changes in the queries.

Also can someone tell me the ide! ! al backup strategy for this database considering
the fact that it's a 24x7 system.

Thanks in advance .

Chetan Chindarkar



---------------------------------
Do You Yahoo!?
Sign-up for Video Highlights of 2002 FIFA World Cup

Hi guys ,


Need some help. Actually we are looking here at a Oracle 8.1.7 db on HP-UNIX.
The application was running fine uptil yesterday. Suddenly a part of the appln
is running extremely slow. I can not figure what might be the problem. Wanted to
track this down asap.


Here is some information about the db.


Database size - 20GB


Optimizer - CHOOSE


Disk Structure - RAID 1+0


No. of processors - 4


Block Size - 8K


Archivelog mode : ARCHIVELOG


Please tell me what should be the ideal way I should try to trace the
problem. I thought of running UTLBSTAT/UTLESTAT or
STATSPACK and asked the user to run that part of the appln. Has
anybody worked with STATSPACK before ?


Can anybody tell me what should accurate and fastest way to hunt down
the problem ? I think its something to do with indexes or changes in the
queries.


Also can someone tell me the ideal backup strategy for this
database considering the fact that it's a 24x7 system.


Thanks in advance .


Chetan Chindarkar


Do You Yahoo!?

href="http://rd.yahoo.com/welcome/*http://fifaworldcup.yahoo.com/fc/en/spl">Sign
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Sign-up for Video Highlights of 2002 FIFA World Cup --0-633695350-1025238949=:90527-- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Chetan INET: orachetan@yahoo.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).