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https://issues.apache.org/jira/browse/AMQ-5249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14190438#comment-14190438
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Przemek Bruski commented on AMQ-5249:
-------------------------------------
OK, we'll upgrade as soon as it's available. It will take some time before it
ends up on production and then we should wait for at least two weeks before
confirming the fix - the rate of occurrence is roughly once per week.
> "cursor got duplicate" error after upgrade
> ------------------------------------------
>
> Key: AMQ-5249
> URL: https://issues.apache.org/jira/browse/AMQ-5249
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.9.1, 5.10.0
> Reporter: Rural Hunter
>
> I was using 5.9.0 and meet one problem so I tried to upgrade activemq. I
> tried both 5.9.1 and 5.10.0 and encouterred a same problem. I saw messages
> filled DLQ very quickly. I checked the clients both producer and consumer but
> there was no error. I checked activemq log and found the log is full of these
> warnings:
> 2014-06-27 23:22:09,337 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.cyyun.webmon.spider.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:211.com-52399-1400732399425-1:1:235992:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,337 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:nbzjjf22805-34129-1403880308671-1:1:28:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,338 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:jxncxnj2-48598-1403856107346-1:1:6007:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,338 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:jxnc17-60227-1400730816361-1:1:149072:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,339 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:cyyun-46954-1403800808565-1:1:9765:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,339 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:ubuntu-55495-1403497638437-1:1:53086:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> 2014-06-27 23:22:09,340 | WARN |
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch@19117501:com.xxxx.update,batchResetNeeded=false,storeHasMessages=true,size=211,cacheEnabled=true,maxBatchSize:200,hasSpace:true
> - cursor got duplicate: ID:cyyun-39030-1403880008363-1:1:70:1:1, 4 |
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor | ActiveMQ
> Broker[localhost] Scheduler
> The problem mostly happens right after activemq starts and sometimes happened
> after activemq worked normally for a while.
> For now I have to roll back to 5.9.0 and the problem doesn't occure.
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