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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, 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 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, for instance) the problem will occur.
> A Broker restart will be required to restore service.
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