[jboss-jira] [JBoss JIRA] Commented: (JBMESSAGING-1796) Dead locak while simultaneously shutdown of nodes in a cluster

[Tim Fox (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBMESSAGING-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12521694#action_12521694 ] 

Tim Fox commented on JBMESSAGING-1796:
--------------------------------------

If you want to ensure mutual exclusion, use a mutex (i.e. use synchronized, a ReantrantLock or a semaphore)

Trying to do this with flags is prone to race conditions.

> Dead locak while simultaneously shutdown of nodes in a cluster
> --------------------------------------------------------------
>
>                 Key: JBMESSAGING-1796
>                 URL: https://jira.jboss.org/jira/browse/JBMESSAGING-1796
>             Project: JBoss Messaging
>          Issue Type: Bug
>          Components: JMS Clustering
>    Affects Versions: 1.4.0.SP3.CP10, 1.4.6.GA
>            Reporter: Howard Gao
>            Assignee: Howard Gao
>             Fix For: 1.4.0.SP3.CP11, 1.4.6.GA.SP1
>
>


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