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From "Scott Stanton (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1842) HashIndex leaks file handles when destination is removed
Date Mon, 07 Jul 2008 22:22:00 GMT
HashIndex leaks file handles when destination is removed
--------------------------------------------------------

                 Key: AMQ-1842
                 URL: https://issues.apache.org/activemq/browse/AMQ-1842
             Project: ActiveMQ
          Issue Type: Bug
          Components: Message Store
    Affects Versions: 5.2.0
            Reporter: Scott Stanton
            Priority: Critical


When a destination is removed, all open file handles inside HashIndex will be leaked because
HashIndex.clear() closes the index, deletes the backing store files, then reopens the files.
 There is no provision for closing the HashIndex without reopening the files.  Eventually
the broker runs out of file handles and hangs.

For reference, here is the stack trace down to HashIndex.clear from the removeDestination
call:

{code}
	  at org.apache.activemq.kaha.impl.index.hash.HashIndex.clear(HashIndex.java:313)
	  at org.apache.activemq.kaha.impl.container.MapContainerImpl.clear(MapContainerImpl.java:385)
	  at org.apache.activemq.store.kahadaptor.KahaReferenceStore.removeAllMessages(KahaReferenceStore.java:201)
	  at org.apache.activemq.store.kahadaptor.KahaTopicReferenceStore.removeAllMessages(KahaTopicReferenceStore.java:320)
	  at org.apache.activemq.store.amq.AMQMessageStore.removeAllMessages(AMQMessageStore.java:503)
	  at org.apache.activemq.broker.region.Topic.dispose(Topic.java:452)
	  at org.apache.activemq.broker.region.AbstractRegion.dispose(AbstractRegion.java:469)
	  at org.apache.activemq.broker.region.AbstractRegion.removeDestination(AbstractRegion.java:185)
	  at org.apache.activemq.broker.region.RegionBroker.removeDestination(RegionBroker.java:289)
	  at org.apache.activemq.broker.BrokerFilter.removeDestination(BrokerFilter.java:146)
	  at org.apache.activemq.broker.BrokerFilter.removeDestination(BrokerFilter.java:146)
	  at org.apache.activemq.advisory.AdvisoryBroker.removeDestination(AdvisoryBroker.java:173)
	  at org.apache.activemq.broker.BrokerFilter.removeDestination(BrokerFilter.java:146)
	  at org.apache.activemq.broker.MutableBrokerFilter.removeDestination(MutableBrokerFilter.java:153)
	  at org.apache.activemq.broker.BrokerFilter.removeDestination(BrokerFilter.java:146)
	  at org.apache.activemq.broker.MutableBrokerFilter.removeDestination(MutableBrokerFilter.java:153)
...
{code}

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