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https://issues.apache.org/jira/browse/ARTEMIS-2511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Bertram updated ARTEMIS-2511:
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External issue URL: (was:
https://github.com/apache/activemq-artemis/tree/master/examples/features/ha/ha-policy-autobackup)
> Got duplicated messages when using ha-policy-autobackup
> -------------------------------------------------------
>
> Key: ARTEMIS-2511
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2511
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Affects Versions: 2.10.1
> Reporter: Ning Kang
> Priority: Major
>
> I tried [this
> example|https://github.com/apache/activemq-artemis/tree/master/examples/features/ha/ha-policy-autobackup],
> but found a bug of duplicated messages and 2 other issues.
> When finish step 16 in HAPolicyAutoBackupExample, if I restart server1 and
> consumer1, then all scaled down messages that already consumed in step 16 by
> consumer0 will be received again by consumer1.
> To reproduce this bug, just follow the setup in the {{ha-policy-autobackup}}
> example, and add the follow steps after step 16 in
> {{HAPolicyAutoBackupExample.java}}:
> - 16a: restart server 1
> - 16b: restart consumer1
> - 16c: consumer1 will receive all scaled down messages that already consumed
> by consumer0
> Is this a bug of Artemis HA, or there is some extra configurations need to be
> made in {{broker.xml}} to avoid scaled down messages to be consumed again?
> *Another 2 issues I found related to this example are:*
> 1. After restart server1, both server0 and server1 will continuously do
> RequestBackupVote actions and never stop, is this normal? See example log
> {code:java}
> 2019-10-03 17:26:37,916 INFO [org.apache.activemq.artemis.core.server]
> AMQ221063: Sending quorum vote response: RequestBackupVote [backupsSize=1,
> nodeID=1905cb70-e508-11e9-8290-00505680c5d7, backupAvailable=false]
> 2019-10-03 17:26:38,926 INFO [org.apache.activemq.artemis.core.server]
> AMQ221062: Received quorum vote request: RequestBackupVote [backupsSize=-1,
> nodeID=null, backupAvailable=false]{code}
> 2. Even if server1 is restarted, the loadbalancer is not working any more.
> All messages from producer0 will only be sent to server0, instead of half of
> messages sent to server0, another half sent to server1.
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