Re: A Tale of Two SQLs
- From: <solbeach@xxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 3 May 2004 16:29:42 -0400
I had a similar issue a couple of months ago.
My problem was that a few "popular" tables,
which are regularly updated/accessed by most of the
application had INITRANS too low & sessions were going into
ENQUEUE wait state.
Run this simple SQL the next time a "slowdown" occurs...
SELECT DECODE(request,0,'Holder: ','Waiter: ')||sid sess,
id1, id2, lmode, request, type
FROM V$LOCK
WHERE (id1, id2, type) IN
(SELECT id1, id2, type FROM V$LOCK WHERE request>0)
ORDER BY id1, request
/
We had folks to started an UPDATE (got a lock)
and then literally went to lunch to 90 minutes!
Other sessions would hang quietly waiting for the resource.
HTH & YMMV!
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
put 'unsubscribe' in the subject line.
--
Archives are at //www.freelists.org/archives/oracle-l/
FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Other related posts:
