[jboss-jira] [JBoss JIRA] (JGRP-1912) LockService can fail under heavy load
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https://issues.jboss.org/browse/JGRP-1912?page=com.atlassian.jira.plugin....
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Chris Gentile commented on JGRP-1912:
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I relocated the <CENTRAL_LOCK /> tag in my channel config and the problem goes
away.
For anyone else that stumbles upon this thread:
The doc says:
"The locking protocol has to be placed at or towards the top of the stack (close
to the channel)."
The stack is lowest-to-highest in channel config files, so "towards the top" is
actually at the bottom of the file.
Then it is the last protocol to get added to the stack and is on top.
Bela,
Perhaps in the documentation you could elaborate on what "close to the
channel" actually means.
Or perhaps an actual example might help.
The jgroups jar files seem to include several config files already (i.e.: udp.xml).
Perhaps you could include a locking.xml too?
Thanks,
Chris
LockService can fail under heavy load
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Key: JGRP-1912
URL: https://issues.jboss.org/browse/JGRP-1912
Project: JGroups
Issue Type: Bug
Affects Versions: 3.6.1
Environment: both windows 8.1 and RHEL
java 1.7.0_75
Reporter: Chris Gentile
Assignee: Bela Ban
Fix For: 3.6.3
Attachments: LockServiceTestClient.java, LockServiceTestClient.java, logFile,
logFile2, runLockServiceTestClient.sh, udp.xml
Once in awhile, the LockService will get stuck acquiring a lock.
These seems to occur most often when two threads are simultaneously trying to acquire the
same lock. (i.e.: exact same millisecond on a server with multiple processors).
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