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From "Keith Wall (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-8144) [Broker-J] Memory compaction does not run when used direct memory exceeds 2GB
Date Fri, 30 Mar 2018 11:31:00 GMT

     [ https://issues.apache.org/jira/browse/QPID-8144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Wall updated QPID-8144:
-----------------------------
    Status: Reviewable  (was: In Progress)

> [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 the problem will occur.

> A Broker restart will be required to restore service.



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