RE: To set events or not set events, that is the question

From: "Powell, Mark D" <mark.powell@xxxxxxx>
To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
Date: Tue, 15 Jun 2004 09:14:11 -0400

If the select you posted is all that shows in the alert log then it is most
likely the full SQL statement based on our 9.2 logs showing at least a dozen
lines before it cuts off the SQL.  If you have the SQL statement there is
probably no real reason to set the 1555 event.

As a general rule I believe you should set events only while you are
actively working on problems related to  them.  Events should generally be
removed when you upgrade.

IMHO -- Mark D Powell --


-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Jesse, Rich
Sent: Monday, June 14, 2004 5:12 PM
To: ORACLE-L (E-mail)
Subject: To set events or not set events, that is the question


9.2.0.5.0 on HP/UX 11.11, newly created from an 8.1.7.4.0 export.  After a
week of uptime, we get an ORA-1555 today.  The alert.log says:

ORA-01555 caused by SQL statement below (Query Duration=8581 sec,
SCN:0x0000.0090c189):

...followed by what I'm hoping is a partial statement (because it's a nasty
FTS):

SELECT PARTNO,WHOUSE,ENT_CODE FROM MY_TABLE

(schema/table/column names changed to protect the innocent).  Now any query
that takes 2+ hours to complete during the day on our nice new fast server
*deserves* to die a horrible ORA-1555 death, IMHO, but I'd still like to be
able to track these down in the future.  And without a trace file generated,
that's just not gonna happen.

So, I'll set event 1555 as an errorstack.  But the last time I did this,
then had a Support call a year later, I was told that setting events
permanently like this is not a good idea, although I was not able to find
out *why* it's not.

I've got a TAR open to get the Official Word, but does anyone have a good
reason why this or other "error" event (like 1652 to determine who the hell
used up 2GB of TEMP) should NOT be in an init.ora for any version of
Oracle???

TIA!
Rich

Rich Jesse                           System/Database Administrator
Rich.Jesse@xxxxxxxxxxxxxxxxx         QuadTech, Sussex, WI USA
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RE: To set events or not set events, that is the question

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