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From "ying (JIRA)" <j...@apache.org>
Subject [jira] Closed: (AMQ-2157) Network of pure master/slave hang after large number of messages
Date Wed, 11 Mar 2009 20:23:39 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ying closed AMQ-2157.
---------------------

    Resolution: Working as Designed

I wish Activemq can have a troubleshoot guide for common issues. 

I run into several which is due to configuration and extra digging and have to extensive research
to find out. Things like:

1. for network of brokers, you have to set networkTTL correctly, otherwise it will not  pass
message along

2. the default multicast port is 239.255.2.3 port 6155  you have to look at here:
http://wirelessness.wordpress.com/2007/02/02/iptables-and-activemq/
in the corporate environment, there is firewall, if you don't open the ports, brokers will
not be able to discover each other

3. other java default nasty things like jmx rmi is opening two ports, one fixed, one random,
so you need to do customize jmx agent to make it two fixed ports and ask your admin to open
those ports on firewall.

... the list goes on. Please start it and i can volunteer to add on to it and it will save
people's time and will not scare people who is evaluating this product without doing much
research thus we have a broader user case. 

> Network of pure master/slave hang after large number of messages
> ----------------------------------------------------------------
>
>                 Key: AMQ-2157
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2157
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: solaris 10
>            Reporter: ying
>            Priority: Blocker
>         Attachments: activemq-master.xml, activemq-slave.xml
>
>
> 1.I setup a network of activemq master/slave, please see attached for the master and
slave config. ( we plan to have 12 pairs)
> 2.I have a producer which sends message constantly >50000 msgs to a queue using a
loop.
> 3.I have 4 consumers which consumes from the queue
> 4.After a certain number of messages, not a fixed number, every time, the broker will
hang, producer is blocked and consumers are not consuming. Unless I restart the broker.
> This issue might be related to https://issues.apache.org/activemq/browse/AMQ-2102

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