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https://issues.apache.org/jira/browse/AMQ-5143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13983460#comment-13983460
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Timothy Bish commented on AMQ-5143:
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Have you tested against 5.9.1 or a 5.10-SNAPSHOT ?
> Lost Message with LevelDB
> -------------------------
>
> Key: AMQ-5143
> URL: https://issues.apache.org/jira/browse/AMQ-5143
> Project: ActiveMQ
> Issue Type: Bug
> Components: activemq-leveldb-store
> Affects Versions: 5.9.0
> Environment: ubuntu server
> Reporter: Rural Hunter
> Priority: Critical
>
> I'm running activemq 5.9.0 with levelDB storage. Before, all my applications
> were running fine. It means all messages in activemq are processed in time.
> Activemq worked also fine with that. But recently, one of the application
> stopped to process messages due to system problem. So the messages are piled
> in activemq queue. That was fine and as expected.
> But one day, I found all the consumers can not consume messages from
> activemq. I checked the queue depth in web console and found that, the
> enqueued counter is increasing but the dequequed counter stops for all
> queues. If I click the queue name trying to browse the queue, I found there
> was no message in it. Though the number of pending messages shows there are
> many messages in it. And I'm sure there are actually messages in it because
> my application consuming from one of the queues are broken.
> I checked my levelDB storage and it's about 40G. I had no idea what happened
> so I tried to restart activemq. But after the restart I found all the
> messages are lost. I checked the levelDB data and the old data files are
> still there(40G).
> The new messages processing were fine right after the restart. But after
> several hours, the same issue happened again. All consumers stopped consuming
> any messages. I restarted activemq again the found the recently piled
> messages were lost too.
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