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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Prod problem, please help!!!
Tracy what do the Sys Admin staff say. How long since the last reboot of the
server, has there been any kernel changes recently, any rogue processes?
I always try and think away from Oracle initially and get other people
involved as well.
It is easy to assume it is just an Oracle issue (which it may well be of
course)
Good luck
John
-----Original Message-----
Jared.Still_at_radisys.com
Sent: 30 April 2002 20:39
To: Multiple recipients of list ORACLE-L
Tracy,
You can start by using the query below to determine what the sessions are actually waiting on:
select
s.username username, e.event event, s.sid, e.p1text, e.p1, e.p2text, e.p2, e.wait_time, e.seconds_in_wait, e.state
and s.sid = e.sid
Jared
"Tracy Rahmlow" <tracy.rahmlow_at_aexp.com>
Sent by: root_at_fatcity.com
04/30/2002 12:21 PM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
cc:
Subject: Prod problem, please help!!!
I have opened a TAR with Oracle and am waiting a resolution. In the
meantime,
I am wondering if anybody else has any ideas while I wait.
Specifics:
IBM AIX 4.3
Rdms 8.1.7.3
Database ~75g
OLTP database with approximately 500 dedicated connections and 500
shared connections with Oracle's MTS.
Problem:
The database hangs, and no user is able to connect to the instance, except
locally through srvmgrl. Even within svrmgrl, we are unable to select
anything from
the
database without the query hanging. However, we can abort the instance
(shutdown abort) and start it up again just fine. This has happened on
4-22, 4-29 &
4-30 in the
early afternoon. Usually, this is also our peak busy rate for the week.
We are executing MTS for 4 applications, all other applications connect
through
dedicated server.
The alert log contains a message unable to start a shared server process.
This week it was #41 and last week it was #25. Normally, we do not exceed
5 shared
servers. Another thing I noticed is that there is no time allocated to
any of the newly created shared servers. It is as if, it can not process
any work
through existing shared
servers and decides to allocate another one, until finally it freezes. I
am not sure if this is a MTS problem because I would suspect that I should
be able
to establish
a dedicated server connection. And I can not. I think that this is just
a symptom of the underlying problem. It would appear to me that we are
running out
of a resource,
however our sysadms do not see any resource problems. Does anybody have
any ideas how to debug this? Thanks
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tracy Rahmlow INET: tracy.rahmlow_at_aexp.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_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-LReceived on Tue Apr 30 2002 - 15:53:43 CDT
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: Jared.Still_at_radisys.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_at_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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: John Hallas INET: john.hallas_at_hcresources.co.uk 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_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L
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