[jira] [Commented] (AMQ-5082) ActiveMQ replicatedLevelDB cluster breaks, all nodes stop listening

["anselme dewavrin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-5082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14041885#comment-14041885 ] 

anselme dewavrin commented on AMQ-5082:
---------------------------------------

Dear all,

We had the exact same problem due to backups at our hosting company, that we could not avoid.

We worked around by increasing the ticktime in zookeeper.

Anselme

> ActiveMQ replicatedLevelDB cluster breaks, all nodes stop listening
> -------------------------------------------------------------------
>
>                 Key: AMQ-5082
>                 URL: https://issues.apache.org/jira/browse/AMQ-5082
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: activemq-leveldb-store
>    Affects Versions: 5.9.0, 5.10.0
>            Reporter: Scott Feldstein
>            Priority: Critical
>         Attachments: 03-07.tgz, amq_5082_threads.tar.gz, mq-node1-cluster.failure, mq-node2-cluster.failure, mq-node3-cluster.failure, zookeeper.out-cluster.failure
>
>
> I have a 3 node amq cluster and one zookeeper node using a replicatedLevelDB persistence adapter.
> {code}
>         <persistenceAdapter>
>             <replicatedLevelDB
>               directory="${activemq.data}/leveldb"
>               replicas="3"
>               bind="tcp://0.0.0.0:0"
>               zkAddress="zookeep0:2181"
>               zkPath="/activemq/leveldb-stores"/>
>         </persistenceAdapter>
> {code}
> After about a day or so of sitting idle there are cascading failures and the cluster completely stops listening all together.
> I can reproduce this consistently on 5.9 and the latest 5.10 (commit 2360fb859694bacac1e48092e53a56b388e1d2f0).  I am going to attach logs from the three mq nodes and the zookeeper logs that reflect the time where the cluster starts having issues.
> The cluster stops listening Mar 4, 2014 4:56:50 AM (within 5 seconds).
> The OSs are all centos 5.9 on one esx server, so I doubt networking is an issue.
> If you need more data it should be pretty easy to get whatever is needed since it is consistently reproducible.
> This bug may be related to AMQ-5026, but looks different enough to file a separate issue.



--
This message was sent by Atlassian JIRA
(v6.2#6252)