[jboss-jira] [JBoss JIRA] Closed: (JBAS-5310) Add UNICAST to TCP-based stacks with a thread pool

[Brian Stansberry (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBAS-5310?page=all ]

Brian Stansberry closed JBAS-5310.
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    Resolution: Done

> Add UNICAST to TCP-based stacks with a thread pool
> --------------------------------------------------
>
>                 Key: JBAS-5310
>                 URL: http://jira.jboss.com/jira/browse/JBAS-5310
>             Project: JBoss Application Server
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: Clustering
>            Reporter: Brian Stansberry
>         Assigned To: Brian Stansberry
>            Priority: Critical
>             Fix For: JBossAS-5.0.0.CR1
>
>
> TCP (as in TCP/IP, not the JGroups protocol) ensures the messages from a given sender are received in order.  Pre-concurrent stack releases of JGroups counted on this to ensure ordered delivery of messages to Channel.receive(). This worked fine because a single thread carried messages from the transport to receive().  But with a concurrent stack, there is a pool of threads taking messages from the transport and delivering them to receive().  This introduces the possibility of out-of-order messages at receive().
> Need to add UNICAST to the TCP-based stacks to impose ordering.

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