Library Cache Lock

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Library Cache Lock

Library Cache Lock

2004-06-02 - By David Sharples

Reply: << 11 12 13 14 15 16 17 18 19 20 >>

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@(protected)
[mailto:oracle-l-bounce@(protected)] On Behalf Of Bobak, Mark
Sent: 02 June 2004 14:58
To: oracle-l@(protected)
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 '
and vsw.p1raw = lob.kglhdadr
and lob.kglhdadr = pn.kglpnhdl
and pn.kglpnmod != 0
and pn.kglpnuse = ses.saddr

order by pn.kglpnmod desc, pn.kglpnreq desc
/

 -- --Original Message-- --
 From: oracle-l-bounce@(protected)
[mailto:oracle-l-bounce@(protected)]On Behalf Of David Sharples
 Sent: Wednesday, June 02, 2004 9:40 AM
 To: oracle-l@(protected)
 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@(protected)
[mailto:oracle-l-bounce@(protected)] On Behalf Of Khedr, Waleed
 Sent: 02 June 2004 14:10
 To: oracle-l@(protected)
 Subject: RE: library cache lock



 The metalink has answers for similar issues.



 -- --Original Message-- --
 From: David Sharples
[mailto:dsharples@(protected)]
 Sent: Wednesday, June 02, 2004 8:44 AM
 To: oracle-l@(protected)
 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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<body lang=EN-US link=blue vlink=purple >

<div class=Section1 >

 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 <o:p > </o:p > 

 <o:p > </o:p > 

 Dave <o:p > </o:p > 

 <o:p > </o:p > 

<div >

<div class=MsoNormal align=center style= 'text-align:center ' > 

<hr size=2 width= "100% " align=center tabindex=-1 >

 </div >

 From: oracle-l-bounce@(protected)
[mailto:oracle-l-bounce@(protected)] On
Behalf Of Bobak, Mark 
 Sent: 02 June 2004 14:58 
 To: oracle-l@(protected) 
 Subject: RE: library cache lock <o:p > </o:p > 

</div >

 <o:p > </o:p > 

<div >

 David, <o:p > </o:p > 

</div >

<div >

 <o:p > </o:p > 

</div >

<div >

 Try the following query to find the
blocked sessions and which session is the blocker. <o:p > </o:p > 

</div >

<div >

 Note that due to the order by, the first
session should be the blocker. <o:p > </o:p > 

</div >

<div >

 <o:p > </o:p > 

</div >

<div >

 -Mark <o:p > </o:p > 

</div >

<div >

 <o:p > </o:p > 

</div >

<div >

 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 ' 
 and vsw.p1raw = lob.kglhdadr 
 and lob.kglhdadr = pn.kglpnhdl 
 and pn.kglpnmod != 0 
 and pn.kglpnuse = ses.saddr <o:p > </o:p > 

</div >

<div >

 order by pn.kglpnmod desc, pn.kglpnreq
desc 
/ <o:p > </o:p > 

</div >

<blockquote style= 'margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt ' >

 -- --Original Message-- -- 
 From: 
oracle-l-bounce@(protected) [mailto:oracle-l-bounce@(protected)] On Behalf Of David Sharples 
 Sent: Wednesday, June 02, 2004
9:40 AM 
 To: oracle-l@(protected) 
 Subject: RE: library cache lock <o:p > </o:p > 

 I searched (probably on wrong words)
didn’t return anything useful as I could see, can you show me a url? <o:p > </o:p > 

 <o:p > </o:p > 

<div >

<div class=MsoNormal align=center style= 'text-align:center ' > 

<hr size=2 width= "100% " align=center tabIndex=-1 >

 </div >

 From: 
oracle-l-bounce@(protected) [mailto:oracle-l-bounce@(protected)] On Behalf Of Khedr, Waleed 
 Sent: 02 June 2004 14:10 
 To: oracle-l@(protected) 
 Subject: RE: library cache lock <o:p > </o:p > 

</div >

 <o:p > </o:p > 

<div >

 The metalink has answers for similar
issues. <o:p > </o:p > 

</div >

<div >

 <o:p > </o:p > 

</div >

<blockquote style= 'margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt ' >

 -- --Original Message-- -- 
 From: David Sharples
[mailto:dsharples@(protected)] 
 Sent: Wednesday, June 02, 2004
8:44 AM 
 To: oracle-l@(protected) 
 Subject: library cache lock <o:p > </o:p > 

 <!-- Converted from text/rtf format -- >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. <o:p > </o:p > 

 Thanks <o:p > </o:p > 

 Dave <o:p > </o:p > 

</blockquote >

</blockquote >

</div >

</body >

</html >