olite server fetch size too low causing high cpu
edited Apr 25, 2013 7:30AM in Gateways, Oracle Lite, Oracle DB Mob. Server, TimesTen (MOSC) 6 commentsAnswered
Hello,
We have an Oracle Lite mobile server (version 10g) on windows 2003. The Olite server is connecting to an HPUX oracle database 10.2.0.4. The HPUX server is experience a high cpu utilization. I used a trace to see what going on.
One of the query I see is:
select id,create_tm,expire_tm,status_tm,status_msg,msg_type,msg_body from dm$device_queue where device_id=:1 order by id asc
In one of the transaction, it took 571 trips to the database in about 2 seconds fetching 10 rows at a time.
The above query was execute 46 times for a total of about 77 seconds. Fetch size vary from 10 to 571. Each fetch is 10 rows.
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