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From "Bruce Snyder (JIRA)" <>
Subject [jira] Updated: (AMQ-1327) Unable to rejoin a failed broker to the broker network
Date Fri, 20 Nov 2009 19:01:52 GMT


Bruce Snyder updated AMQ-1327:

    Fix Version/s:     (was: AGING_TO_DIE)

> Unable to rejoin a failed broker to the broker network
> ------------------------------------------------------
>                 Key: AMQ-1327
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: Cygwin in Windows XP; JDK 1.6.0_01-b06, ActiveMQ 5.0 snapshot (rev.
>            Reporter: Kevin Su
>             Fix For: 5.4.0
> Toplogy:                
>      A network of brokers (3 or more brokers) in a star configuration, each broker interconnected
to all other brokers in the network.   
> Discovery:             
>    This problem happens with both static connection and auto-discovery through multi-cast
> Broker Conf File:  All brokers have a simple configuration as the one below: 
>     <beans>
>       <broker brokerName="sender" persistent="false" useJmx="false" xmlns="">
>         <transportConnectors>
>           <transportConnector uri="tcp://localhost:62001" />
>         </transportConnectors>
>         <networkConnectors>
>           <networkConnector uri="static:(tcp://localhost:62002,tcp://localhost:62003,tcp://localhost:62004)"/>
>         </networkConnectors>
>         <persistenceAdapter>
>           <memoryPersistenceAdapter/>
>         </persistenceAdapter>
>       </broker>
>     </beans>
> How to reproduce:
>     1. Start three brokers with names A, B, and C at port 62001, 62002, and 62003 respectively.
>     2. Kill broker C (or any of the three brokers) via CTRL-C.  Observe the other borkers
now gets into recovery mode trying to reconnect to C
>     3. Restart C.  Notice one of both of the remaining brokers (i.e. A and B) now throws
InvalidClientIDException exception.  If it does not happen the first
>         time, repeat until the exception occurs.   
> When the exception happens, C can no longer join the broker network. The only way to
recover is to shutdown and restart all three brokers.
> This does not seem to happen when there are only two brokers involved.  It happens predictably
in my environment when more then two brokers are involved.

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