[infinispan-issues] [JBoss JIRA] (ISPN-2291) Tx rollback during state transfer has stale locks

Tue Oct 16 02:44:01 EDT 2012

    [ https://issues.jboss.org/browse/ISPN-2291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12726683#comment-12726683 ] 

Mircea Markus edited comment on ISPN-2291 at 10/16/12 2:43 AM:
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[~anistor] there was still a race condition that ISPN-2383 didn't catch.
I've issued a pull request with it. Indeed it's very much similar with how Erik fixed it. Just that Erik's fix, whilst releasing the locks, doesn't clean up the tx from the table as well.

      was (Author: mircea.markus):
    [~anistor] there was still a race condition that ISPN-2383 didn't catch.
I've issued a pull request with it.

> Tx rollback during state transfer has stale locks
> -------------------------------------------------
>
>                 Key: ISPN-2291
>                 URL: https://issues.jboss.org/browse/ISPN-2291
>             Project: Infinispan
>          Issue Type: Bug
>          Components: State transfer
>    Affects Versions: 5.2.0.Beta1
>            Reporter: Erik Salter
>            Assignee: Mircea Markus
>            Priority: Blocker
>             Fix For: 5.2.0.CR1
>
>
> There are stale locks that happened when a transaction failed due to a replication timeout to its peer node.  The transaction contained grouped keys that were submitted to the primary owner.  During execution of one such transaction, there was a state transfer, which changed ownership of these keys.  
> Here's an example flow:
> The task executed and started a transaction.  Since it was not the primary owner, it sent a LockControlCommand to the new owner.  This call timed out, and a rollback was issued.  The local transaction is completed, but subsequent attempts to lock this key fail.
> The logs can be found here:
> http://dl.dropbox.com/u/50401510/5.2.0.ALPHA3/lock/10.30.12.83/server.log.gz
> http://dl.dropbox.com/u/50401510/5.2.0.ALPHA3/lock/10.30.12.84/server.log.gz
> http://dl.dropbox.com/u/50401510/5.2.0.ALPHA3/lock/10.30.12.85/server.log.gz

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