[infinispan-issues] [JBoss JIRA] (ISPN-1519) Stale locks on adding a new node to a cluster

Erik Salter (Issue Comment Edited) (JIRA) jira-events at lists.jboss.org
Sat Nov 19 18:51:40 EST 2011


    [ https://issues.jboss.org/browse/ISPN-1519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644173#comment-12644173 ] 

Erik Salter edited comment on ISPN-1519 at 11/19/11 6:51 PM:
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I can.  After removing the lock cleanup from the prepare failure, there's an issue where if the backup owner times out waiting for the transaction lock, the commit appears to succeed but the lock on the backup doesn't release.

EDIT:  See the attached logs.
                
      was (Author: an1310):
    I can.  After removing the lock cleanup from the prepare failure, there's an issue where if the backup owner times out waiting for the transaction lock, the commit appears to succeed but the lock on the backup doesn't release.

I will attach logs once I get home =)
                  
> Stale locks on adding a new node to a cluster
> ---------------------------------------------
>
>                 Key: ISPN-1519
>                 URL: https://issues.jboss.org/browse/ISPN-1519
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Locking and Concurrency
>    Affects Versions: 5.0.1.FINAL
>            Reporter: Erik Salter
>            Assignee: Dan Berindei
>
> There is an issue with stale locks when a new node joins a running cluster.
> There are three caches all using eagerLockSingleNode=true with the transaction running on the primary data owner.  The local locks for the affected keys are acquired, and the prepare is sent to the backup owner.  During this time, the new node is detected and joins the cluster.  The transaction times out waiting for the transaction lock, and a rollback is attempted.  Whereas the local keys are unlocked, the remotely-acquired locks never release.
> I have full trace log files at: 
> http://dl.dropbox.com/u/10929737/5.0.1-stale-lock/data-grid-4/server.log.2011-11-09.log.31.gz
> http://dl.dropbox.com/u/10929737/5.0.1-stale-lock/data-grid-4/server.log.2011-11-09.log.32.gz
> http://dl.dropbox.com/u/10929737/5.0.1-stale-lock/data-grid-5/server.log.2011-11-09.log.rar
> The transaction in question is GlobalTransaction:<data-grid-4-61247>:169901, found on data-grid-4.  I have verified that the primary owner of the keys in question are on data-grid-4.

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