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From "lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5082) ActiveMQ replicatedLevelDB cluster breaks, all nodes stop listening
Date Sat, 28 Nov 2015 17:32:10 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15030598#comment-15030598
] 

lee commented on AMQ-5082:
--------------------------

at recently, my replicated leveldb stored cluster is broken.   if zookeeper session is expired
, my zookeeper client will restart to reconnect the zookeeper server that have been connected
  and activemq cluser is not elected a master .  though all of the activemq node is connecting
the zookeeper,   a master  wil noe be elected.


my zkSessiontimeout is 25s and the zookeeper server ticktime=2000,,my activemq cluser is three
activemq node.   it offen happens recently, please  fixed this bug.   because it reconnects
and not elected a master.

sorry, my english is pool , i do not know that everyone can my problem,

thinks!!!!

my environment is produce.

> 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
>            Assignee: Christian Posta
>            Priority: Critical
>             Fix For: 5.13.0
>
>         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.



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