[jboss-jira] [JBoss JIRA] (WFLY-12929) Session remove event can deadlock if it attempts write operations on a session

Paul Ferraro (Jira) issues at jboss.org
Mon Jan 6 16:31:27 EST 2020


     [ https://issues.redhat.com/browse/WFLY-12929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Ferraro updated WFLY-12929:
--------------------------------
    Description: 
Infinispan listeners are intentionally non-transactional - and thus should never attempt to perform cache writes.
In order to trigger the requisite session listeners, session destroy events need to lookup the cache entries relevant to a given session via SessionFactory.findValue(..).  However, if there are entries missing (e.g. a creation meta data entry w/out a access meta data entry), this method will attempt to purge the orphaned entries.  This should never be done within the context of a session destroy event.

  was:
Activation/passivation listeners are intentionally non-transactional - and thus should never attempt to perform cache writes.
In order to trigger the requisite activation/passivation listeners, activation/passivation events need to lookup the cache entries relevant to a given session via SessionFactory.findValue(..).  However, if there are entries missing (e.g. a creation meta data entry w/out a access meta data entry), this method will attempt to purge the orphaned entries.  This should never be done within the context of an activation/passivation event.



> Session remove event can deadlock if it attempts write operations on a session
> ------------------------------------------------------------------------------
>
>                 Key: WFLY-12929
>                 URL: https://issues.redhat.com/browse/WFLY-12929
>             Project: WildFly
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 18.0.1.Final
>            Reporter: Paul Ferraro
>            Assignee: Paul Ferraro
>            Priority: Critical
>              Labels: downstream_dependency
>
> Infinispan listeners are intentionally non-transactional - and thus should never attempt to perform cache writes.
> In order to trigger the requisite session listeners, session destroy events need to lookup the cache entries relevant to a given session via SessionFactory.findValue(..).  However, if there are entries missing (e.g. a creation meta data entry w/out a access meta data entry), this method will attempt to purge the orphaned entries.  This should never be done within the context of a session destroy event.



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