Re: Instrumenting Poor performance
Date: Thu, 13 Sep 2018 20:04:36 +0000
Message-ID: <SN1PR10MB0368699453BD9190CD2AEB08D81A0_at_SN1PR10MB0368.namprd10.prod.outlook.com>
is it always the same SQL_ID?
It is always the same sql_id. We have a 10046 and 10053 trace for the good execution.. Waiting for the next poor execution to capture the traces again..
I assume EBS can enable tracing for specific activities, but I'm not close to EBS, but maybe there are better solutions than simple sql_trace.
I am not an EBS guy, so I am at a loss here. :(
Do you have proper facility to create a profile based on these sql_trace files?
There is already a sql_profile created for the sql_id. Is that what you mean?
Hi Upendra,
is it always the same SQL_ID?
I assume EBS can enable tracing for specific activities, but I'm not close to EBS, but maybe there are better solutions than simple sql_trace.
With the traces of different "good" and "bad" and see where the time is spent.
Do you have proper facility to create a profile based on these sql_trace files?
br,
Am Do., 13. Sep. 2018 um 21:11 Uhr schrieb Upendra nerilla <nupendra_at_hotmail.com<mailto:nupendra_at_hotmail.com>>:
Hello Team -
We have a SQL baseline created for that SQL_ID and forcing the optimal plan. We are able to see that optimizer is using the same hash. There are no host resource (cpu/memory/io) constraints.. This job runs only a couple of times a day, very time sensitive for the business. We are unable to reproduce this at lower environments even when we performed refreshes..
We see a pattern that this issue shows up during the first week of the month and disappears after a couple of days (not the same exact day).
Here is what I am thinking of gathering - high level info..
What else could I gather to troubleshoot this further?
Appreciate any insights..
Thank you
--
You an enable sql_trace for this particular SQL:
alter system set events 'sql_trace[sql: <SQL_ID>] level=12';
From: Martin Berger <martin.a.berger_at_gmail.com>
Sent: Thursday, September 13, 2018 3:52 PM
To: nupendra_at_hotmail.com
Cc: Oracle-L oracle-l
Subject: Re: Instrumenting Poor performance
You an enable sql_trace for this particular SQL:
alter system set events 'sql_trace[sql: <SQL_ID>] level=12';
berx
We have an EBS application which is running EBS and several other modules (OTC). From time to time I see a particular query giving poor response time. Normal response is <4 mins and during the poor execution, it goes over an hour.
-Upendra
http://www.freelists.org/webpage/oracle-l
Received on Thu Sep 13 2018 - 22:04:36 CEST