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Home -> Community -> Mailing Lists -> Oracle-L -> RE: library cache lock
Oh, bummer. Yeah, I don't know of any way to see what you need to see without those X$ tables.
-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]On Behalf Of David Sharples
Sent: Wednesday, June 02, 2004 10:08 AM
To: oracle-l_at_freelists.org
Subject: RE: library cache lock
Thanks very much - all I need to do now is go get sys access from the dba, all I have is dba rights at present
Dave
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Bobak, Mark
Sent: 02 June 2004 14:58
To: oracle-l_at_freelists.org
Subject: RE: library cache lock
David,
Try the following query to find the blocked sessions and which session is the blocker.
Note that due to the order by, the first session should be the blocker.
-Mark
select /*+ ordered use_nl(lob pn ses) */
decode(lob.kglobtyp, 0, 'NEXT OBJECT', 1, 'INDEX', 2, 'TABLE', 3, 'CLUSTER',
4, 'VIEW', 5, 'SYNONYM', 6, 'SEQUENCE',
7, 'PROCEDURE', 8, 'FUNCTION', 9, 'PACKAGE',
11, 'PACKAGE BODY', 12, 'TRIGGER',
13, 'TYPE', 14, 'TYPE BODY',
19, 'TABLE PARTITION', 20, 'INDEX PARTITION', 21, 'LOB',
22, 'LIBRARY', 23, 'DIRECTORY', 24, 'QUEUE',
28, 'JAVA SOURCE', 29, 'JAVA CLASS', 30, 'JAVA RESOURCE',
32, 'INDEXTYPE', 33, 'OPERATOR',
34, 'TABLE SUBPARTITION', 35, 'INDEX SUBPARTITION',
40, 'LOB PARTITION', 41, 'LOB SUBPARTITION',
42, 'MATERIALIZED VIEW',
43, 'DIMENSION',
44, 'CONTEXT', 46, 'RULE SET', 47, 'RESOURCE PLAN',
48, 'CONSUMER GROUP',
51, 'SUBSCRIPTION', 52, 'LOCATION',
55, 'XML SCHEMA', 56, 'JAVA DATA',
57, 'SECURITY PROFILE', 59, 'RULE',
62, 'EVALUATION CONTEXT',
'UNDEFINED') object_type,
lob.kglnaobj object_name,
pn.kglpnmod lock_mode_held,
pn.kglpnreq lock_mode_requested,
ses.sid,
ses.serial#,
ses.username
from v$session_wait vsw,
x$kglob lob,
x$kglpn pn,
v$session ses
where vsw.event = 'library cache lock'
order by pn.kglpnmod desc, pn.kglpnreq desc /
-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]On Behalf Of David Sharples
Sent: Wednesday, June 02, 2004 9:40 AM
To: oracle-l_at_freelists.org
Subject: RE: library cache lock
I searched (probably on wrong words) didn't return anything useful as I could see, can you show me a url?
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Khedr, Waleed
Sent: 02 June 2004 14:10
To: oracle-l_at_freelists.org
Subject: RE: library cache lock
The metalink has answers for similar issues.
-----Original Message-----
From: David Sharples [mailto:dsharples_at_cerebrussolutions.com]
Sent: Wednesday, June 02, 2004 8:44 AM
To: oracle-l_at_freelists.org
Subject: library cache lock
Hi, got a strange problem. I am trying to truncate a partition in a table, but it just hangs forever, it is waiting on a library cache lock. Anyone know why and how I can clear it - flushing the shared pool didn't help and there are no other sessions touching that table.
Thanks
Dave
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