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From Tim Bain <tb...@alumni.duke.edu>
Subject Re: Facing "Failed to remove inactive durable subscriber"
Date Tue, 03 Feb 2015 14:11:36 GMT
Sounds like a bug; submit a bug report for it in JIRA.  Put as much
information as possible about exactly how to recreate it; if all you do is
provide this stack trace, there's a good chance it'll get closed as "Cannot
Reproduce" if the person who would implement it tries to recreate the
problem and can't.

I'm aware that it happens only intermittently for you, but at least it does
happen, so describe your setup and the behavior of your producers and
consumers when it does.
On Feb 3, 2015 4:31 AM, "khandelwalanuj" <khandelwal.anuj90@gmail.com>
wrote:

> *java.lang.NullPointerException* here.
>
> Attaching the complete stack trace:
>
> [20150121 03:35:33.852 EST (ActiveMQ Durable Subscriber Cleanup Timer)
> org.apache.activemq.broker.region.TopicRegion#doCleanup 102 ERROR] - Failed
> to remove inactive durable subscriber
> *java.lang.NullPointerException
> *        at
>
> org.apache.activemq.store.kahadb.disk.index.BTreeIndex.loadNode(BTreeIndex.java:264)
>         at
>
> org.apache.activemq.store.kahadb.disk.index.BTreeIndex.getRoot(BTreeIndex.java:174)
>         at
>
> org.apache.activemq.store.kahadb.disk.index.BTreeIndex.clear(BTreeIndex.java:202)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex.remove(MessageDatabase.java:2834)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex.clear(MessageDatabase.java:2826)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase.updateIndex(MessageDatabase.java:1471)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase$15.execute(MessageDatabase.java:1204)
>         at
>
> org.apache.activemq.store.kahadb.disk.page.Transaction.execute(Transaction.java:779)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase.process(MessageDatabase.java:1201)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase$10.visit(MessageDatabase.java:1104)
>         at
>
> org.apache.activemq.store.kahadb.data.KahaSubscriptionCommand.visit(KahaSubscriptionCommand.java:187)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase.process(MessageDatabase.java:1071)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase.store(MessageDatabase.java:978)
>         at
>
> org.apache.activemq.store.kahadb.MessageDatabase.store(MessageDatabase.java:958)
>         at
>
> org.apache.activemq.store.kahadb.KahaDBStore$KahaDBTopicMessageStore.deleteSubscription(KahaDBStore.java:788)
>         at
>
> org.apache.activemq.store.ProxyTopicMessageStore.deleteSubscription(ProxyTopicMessageStore.java:103)
>         at
>
> org.apache.activemq.store.ProxyTopicMessageStore.deleteSubscription(ProxyTopicMessageStore.java:103)
>         at
> org.apache.activemq.broker.region.Topic.deleteSubscription(Topic.java:201)
>         at
>
> org.apache.activemq.broker.region.TopicRegion.removeSubscription(TopicRegion.java:199)
>         at
>
> org.apache.activemq.broker.region.TopicRegion.doCleanup(TopicRegion.java:100)
>         at
> org.apache.activemq.broker.region.TopicRegion$1.run(TopicRegion.java:70)
>         at java.util.TimerThread.mainLoop(Timer.java:555)
>         at java.util.TimerThread.run(Timer.java:505)
>
> Please check this.
>
> Thanks,
> Anuj
>
>
>
> --
> View this message in context:
> http://activemq.2283324.n4.nabble.com/Facing-Failed-to-remove-inactive-durable-subscriber-tp4690820p4690913.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

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