Oracle-L: ORA-1000 - How to trace culprit

From: Mark Richard <mrichard_at_transurban.com.au>
Date: Thu, 06 Feb 2003 15:14:06 -0800
Message-ID: <F001.00546855.20030206151406@fatcity.com>

Hi,

We're currently getting a lot of ORA-1000 errors (max open cursors exceeded) on Oracle 8.1.7.4.

I tried looking at v$open_cursor and saw the following:

1* select sid, count(*) from v$open_cursor group by sid order by count(*) desc
SQL> / SID COUNT(*)
---------- ----------

         9         43
         8         38
        11         38
        27         38

{snip}

This seems inconsistent with our open_cursors parameter of 255.

Is there something I'm doing wrong, or something else I can check to try and determine if this parameter is set incorrectly perhaps, or am I looking at v$open_cursor incorrectly. Part of the difficulty is that our application connect to the database via 24 database connections - all sharing load. My understanding though is that each of the 24 connections should allow 255 cursors to be open and our highest connection is only showing 43 in v$open_cursor.

Any suggestions are greatly appreciated as people are getting anxious.

Regards,

Mark.
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Author: Mark Richard
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Received on Thu Feb 06 2003 - 17:14:06 CST