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From "VIctor Perepelitsky (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-3446) Network of brokers does not pass messages when networkTTL is bigger then 1
Date Thu, 11 Aug 2011 10:25:27 GMT

     [ https://issues.apache.org/jira/browse/AMQ-3446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

VIctor Perepelitsky  updated AMQ-3446:
--------------------------------------

    Attachment: activemqTest.zip

run 
mvn test 
or 
mvn -Dtest=NetworkOfBrokersTest test

NetworkOfBrokersTest shows that ttl1 works when ttl2 failes

> Network of brokers does not pass messages when networkTTL is bigger then 1
> --------------------------------------------------------------------------
>
>                 Key: AMQ-3446
>                 URL: https://issues.apache.org/jira/browse/AMQ-3446
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.4.1, 5.4.2, 5.5.0
>            Reporter: VIctor Perepelitsky 
>         Attachments: activemqTest.zip
>
>
> Given 3 brokers A, B and C.
> Each broker is connected to the others by a network bridge (so we have 3 brokers that
are connected to each other)
> The networkTTL is 2 on all network connectors.
> Start broker A and B
> Subscribe consumer on A
> Start Broker C
> Stop Broker B
> Publish message to C
> Expected result:
> The consumer that is subscribed on A receives the message
> Actual result:
> Sometimes it works and sometimes the consumer does not receive the message.
> Additional info:
> From my understanding the problem appears since a broker subscribes as a consumer to
other brokers only when there is a consumer that subscribed to this broker, but it does not
try to renew subscription to other brokers when some (another) broker in its network fails
(or stopped). 
> So we see the following situation:
> Client subscribed on topic X on A, A subscribed on topic X on B, B subscribed on topic
X on C
> When we stop B, A does not subscribe on topic X on C and the message of topic X cannot
pass from C to A.
> This BUG does not occur when networkTTL is 1 because subscription route in a network
will be not be greater then 2

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