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https://issues.apache.org/jira/browse/ARTEMIS-1864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Bertram resolved ARTEMIS-1864.
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Resolution: Cannot Reproduce
I believe this issue has been resolved one way or another during the last 7
years since this was reported. I haven't seen any additional reports and I know
we've fixed at least one {{IndexOutOfBoundsException}} and
{{NoSuchElementException}}.
If this issue comes up again in 2.44.0 or later please re-open this.
> On-Demand Message Redistribution Can Spontaneously Start Failing in Single
> Direction
> ------------------------------------------------------------------------------------
>
> Key: ARTEMIS-1864
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1864
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.5.0
> Environment: RHEL 6.2
> Reporter: Ilkka Virolainen
> Priority: Major
>
> It's possible that the message redistribution of an Artemis cluster can
> spontaneously fail after running a while. I've witnessed this several times
> using a two node colocated replicating cluster with a basic configuration:
> {code:java}
> <cluster-connections>
> <cluster-connection name="my-cluster">
> <connector-ref>netty-connector</connector-ref>
> <retry-interval>500</retry-interval>
> <reconnect-attempts>5</reconnect-attempts>
> <use-duplicate-detection>true</use-duplicate-detection>
> <message-load-balancing>ON_DEMAND</message-load-balancing>
> <max-hops>1</max-hops>
> <discovery-group-ref discovery-group-name="my-discovery-group"/>
> </cluster-connection>
> </cluster-connections>{code}
> After running a while (approx. two weeks) one of the nodes (node a) will stop
> consuming messages from the other node's (node b) internal store-and-forward
> queue. This will result in message redistribution not working from node b ->
> node a but will work from node a -> node b. The cause for this is unknown:
> nothing of note is logged for either broker and JMX shows that the cluster
> topology and the broker cluster bridge connection are intact. This will cause
> significant problems, mainly:
> 1. Client communication will only work as expected if the clients happen to
> connect to the right brokers
> 2. Unconsumed messages will end up piling in the internal store-and-forward
> queue and consume unnecessary resources. It's also possible (but not
> verified) that when messages in the internal queue expire, they leak memory.
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