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Home -> Community -> Mailing Lists -> Oracle-L -> ora-04031 errors
I have been getting ora-04031 errors, even though I have much free space within my shared_pool - probably too much free actually. I set up some scripts to run every 10 minutes and as recently as 3 minutes before my ora-04031 errors started again, my shared_pool free memory was 26M based on the query:
select sysdate, bytes
from v$sgastat
where pool = 'shared pool'
and name = 'free memory';
and myhit ratio was 99.16.
Finally, from Steve Adams site, I ran the following query, and you can see where the errors start.
RUN_DATE RECURRENT_CHUNKS TRANSIENT_CHUNKS FLUSHED_CHUNKS PINS_AND_RELEASED ORA_4031_ERRORS LAST_ERROR_SIZE
-------------------- ---------------- ---------------- -------------- ----------------- --------------- --------------- 28-Jan-2002 2:00:00 296 971 2663763 41743160 0 0 28-Jan-2002 2:10:01 344 961 2669731 41788495 0 0 28-Jan-2002 2:20:01 421 726 2673795 41819190 0 0 28-Jan-2002 2:30:01 473 941 2680027 41865752 0 0 28-Jan-2002 2:40:01 271 625 2686803 41910898 0 0 28-Jan-2002 2:50:01 232 596 2823830 42714680 0 0 28-Jan-2002 3:00:01 242 420 3100201 44175166 1 4168 28-Jan-2002 3:10:01 77 187 3364790 45424772 1116 4168
Can someone point out some other things to research? I am thinking that even though I have free space in memory , maybe it is fragmeneted?
John Fedock
"K" Line America
john.fedock_at_kline.com
www.kline.com
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Fedock, John (KAM.RHQ)
INET: John.Fedock_at_KLINE.com
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