[infinispan-issues] [JBoss JIRA] (ISPN-4131) Lock acquired forever with delayed PrepareCommand

Dan Berindei (JIRA) issues at jboss.org
Tue Mar 18 10:48:10 EDT 2014


     [ https://issues.jboss.org/browse/ISPN-4131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-4131:
-------------------------------

    Workaround: Workaround Exists

    
> Lock acquired forever with delayed PrepareCommand
> -------------------------------------------------
>
>                 Key: ISPN-4131
>                 URL: https://issues.jboss.org/browse/ISPN-4131
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 6.0.2.Final, 7.0.0.Alpha1
>            Reporter: Radim Vansa
>            Assignee: Dan Berindei
>            Priority: Critical
>
> Distributed transactional cache:
> 1. A sends Prepare to B
> 2. B receives Prepare, but due to ongoing ST it is blocked
> 3. B replication timeout elapses
> 4. B sends Rollback, this does not find the TX as Prepare was not executed yet. The transaction is put into completedTransactions.
> 5. Completed transactions timeout elapses. This is by default 15 seconds, way shorter than ST timeout (due to which the Prepare was blocked)
> 6. Prepare is executed on B, acquiring lock on K
> Nobody will rollback the TX as originator thinks it was already rolled back.
> Result: key K will be locked forever, all attempts to update/remove it will fail.

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