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http://jira.jboss.com/jira/browse/JBCACHE-1332?page=comments#action_12411132 ]
Nicolas Lebreton commented on JBCACHE-1332:
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Hi Manik,
Yesterday morning, I deactivated the 2nd level cache to confirm that this issue is linked
to JBoss Cache. Locks always occurred between 24 to 48h after JBoss recycling. We will
wait few more days to be sure.
About your update,
My understanding was that a fix for the issue 1316 was added to 1.4.1 SP9. I downloaded
this service pack, and did not see anything about this issue.
Moreover, I have seen in the JBoss compatibility matrix that JBoss 4.0.5GA is compatible
with 1.4.1.SP8, but I guess that this is just a forgetting.
Cheers,
Nicolas
Lock in eviction.Region:putNodeEvent()
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Key: JBCACHE-1332
URL:
http://jira.jboss.com/jira/browse/JBCACHE-1332
Project: JBoss Cache
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Eviction
Affects Versions: 1.4.1.SP1
Environment: JBoss 4.05
Hibernate 3.2.6.ga
Reporter: Nicolas Lebreton
Assigned To: Manik Surtani
Priority: Critical
Fix For: 1.4.X
Attachments: 2008-04-10-molene.nexotelematics.com_susan_node2_Percentage db
connections in use.jpg, 2008-04-25 locktree.svg, jboss-service.xml, ThreadDumps.zip
JBoss TreeCache is used as cache provider. Please find attached jboss-service.xml
configuration file.
The second level cache is actitated, and several read-only classes are cacheable:
<cache usage="read-only"/>
The query cache is activated, and few queries are cacheable:
<query name="ActorType.listAll.named" cacheable="true">
We encounter an issue. It can be reproduced on an environment with only few users
connected (less than 10). For those users, screen is refreshed every 30 seconds through
Ajax requests.
Application is running in a cluster. On the other hand, this issue occurs with only one
node started. A JBoss is started. Less than 24 hours later, application is becoming
unresponsive. JBoss then needs to be recycled. And it works.
Before stoping the node, I have taken several thread dumps separated by at least 30
seconds. Please find attached 10th, 11th, 25th's output files. We noticed thread locks
in these 3 snapshots. The stack trace of the culprit was always the same (please see
attached outputs for more details):
# java.lang.Object:wait
# waiting on-->EDU.oswego.cs.dl.util.concurrent.BoundedLinkedQueue(0x9331fd60)
# java.lang.Object:wait(Object.java:474)
# EDU.oswego.cs.dl.util.concurrent.BoundedLinkedQueue:put
# locked-->EDU.oswego.cs.dl.util.concurrent.BoundedLinkedQueue(0x9331fd60)
# locked-->java.lang.Object(0x9331fe78)
# org.jboss.cache.eviction.Region:putNodeEvent(Region.java:141)
#
org.jboss.cache.interceptors.EvictionInterceptor:doEventUpdatesOnRegionManager(EvictionInterceptor.java:145)
#
org.jboss.cache.interceptors.EvictionInterceptor:updateNode(EvictionInterceptor.java:118)
# org.jboss.cache.interceptors.EvictionInterceptor:invoke(EvictionInterceptor.java:93)
Nicolas
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