SMON taking 50% of CPU and certain queries hanging

From: <rabbit_at_emirates.net.ae>
Date: Mon, 23 Jun 2003 04:14:49 -0700
Message-ID: <F001.005B774B.20030623034919@fatcity.com>

I recently upgraded a test server and found out today that it was hanging. SQLPLUS etc...
I checked alert log and found following errors WARNING: aiowait timed out 1 times
WARNING: aiowait timed out 2 times

I shutdown and restarted and since then Ive noticed that only certain queries hang and the SMON process is running at 50% CPU.

This Test service has been running for ages, allthough I did do an upgrade to the Application a week ago.

Its the end of day so I will leave it running and see if SMON finishes. Ive checked space etc..checked metalink briefly but if any of you can give me some suggestions I will try them.

thanks

Sam

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