STATSPACK interpretation

From: Thomas Jeff <jeff.thomas_at_thomson.net>
Date: Mon, 22 Dec 2003 12:39:24 -0800
Message-ID: <F001.005DAA7B.20031222123924@fatcity.com>

We recently experienced a crash on our prod datewarehouse running 9.2.0.2 on
AIX 4.3.3. The cause of the crash was 4031 errors generated by background
processes (Oracle support has confirmed there is a bug involved), however,
since that crash occurred, a certain nightly batch job has slowed to a crawl.

Trying to recreate what has happened, I came across this in the STATSPACK report.
The interval for this report is 30 minutes.

Is it telling me that I have 746 versions of this call eating up 400+ mb at
the time of the snapshot? Why would that be? The procedure in question
uses bind variables.

SQL ordered by Sharable Memory for DB: DSSP Instance: DSSP Snaps: 3309 -3310
-> End Sharable Memory Threshold: 1048576

Sharable Mem (b) Executions % Total Hash Value
---------------- ------------ ------- ------------
483,580,268 57 411.8 539672786
Module: pmdtm@ip68001 (TNS V1-V3)
BEGIN GENERATE_PRODUCT_KEYS (:1,:2,:3,:4) ; END;

-------------------------------------------------------------
SQL ordered by Version Count for DB: DSSP Instance: DSSP Snaps: 3309 -3310
-> End Version Count Threshold: 20

Version
   Count Executions   Hash Value
-------- ------------ ------------
     746           57    539672786
Module: pmdtm@ip68001 (TNS V1-V3)
BEGIN    GENERATE_PRODUCT_KEYS (:1,:2,:3,:4) ;   END;

--------------------------------------------
Jeffery D Thomas
DBA
Thomson Information Services
Thomson, Inc.

Email: jeff.thomas@thomson.net

Indy DBA Master Documentation available at:
http://gkmqp.tce.com/tis_dba
--------------------------------------------

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-- 
Author: Thomas Jeff
  INET: jeff.thomas_at_thomson.net

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Received on Mon Dec 22 2003 - 14:39:24 CST