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https://issues.apache.org/jira/browse/QPID-8144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Wall updated QPID-8144:
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Description:
The Broker-J uses direct memory for the caching of message content and IO
buffers used for AMQP messaging. If direct memory utilisation exceeds 2GB,
owing to a defect the memory compaction mechanism does not get triggered. This
problem may lead to an {{OutOfMemoryError: direct}} condition. Whether this
condition manifests will depend on the message consumption patten - if the
consumption pattern leads to sparsely occupied buffers (as might be occur with
the use of the selectors so that some messages remain on the queue, for
instance) the problem will occur.
A Broker restart will be required to restore service.
was:
The Broker-J uses direct memory for the caching of message content and IO
buffers used for AMQP messaging. If direct memory utilisation exceeds 2GB,
owing to a defect the memory compaction mechanism does not get triggered. This
problem may lead to an {{OutOfMemoryError: direct}} condition. Whether this
condition manifests will depend on the message consumption patten - if the
consumption pattern leads to sparsely occupied buffers (as might be occur with
the use of the selectors, for instance) the problem will occur.
A Broker restart will be required to restore service.
> [Broker-J] Memory compaction does not run when used direct memory exceeds 2GB
> -----------------------------------------------------------------------------
>
> Key: QPID-8144
> URL: https://issues.apache.org/jira/browse/QPID-8144
> Project: Qpid
> Issue Type: Bug
> Components: Broker-J
> Affects Versions: qpid-java-broker-7.0.2, qpid-java-6.0.7,
> qpid-java-6.1.3, qpid-java-6.0.8, qpid-java-broker-7.0.0, qpid-java-6.1.5,
> qpid-java-broker-7.0.1
> Reporter: Keith Wall
> Assignee: Keith Wall
> Priority: Blocker
> Fix For: qpid-java-6.0.9, qpid-java-6.1.6, qpid-java-broker-7.0.3
>
>
> The Broker-J uses direct memory for the caching of message content and IO
> buffers used for AMQP messaging. If direct memory utilisation exceeds 2GB,
> owing to a defect the memory compaction mechanism does not get triggered.
> This problem may lead to an {{OutOfMemoryError: direct}} condition. Whether
> this condition manifests will depend on the message consumption patten - if
> the consumption pattern leads to sparsely occupied buffers (as might be occur
> with the use of the selectors so that some messages remain on the queue, for
> instance) the problem will occur.
> A Broker restart will be required to restore service.
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