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https://issues.apache.org/jira/browse/AMQ-3573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14964977#comment-14964977
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ASF subversion and git services commented on AMQ-3573:
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Commit dc19d28af92a5fce4969352c53f02b11ee3f59e9 in activemq's branch
refs/heads/master from [~gtully]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=dc19d28 ]
https://issues.apache.org/jira/browse/AMQ-3573
https://issues.apache.org/jira/browse/AMQ-2834 - only validate limits if they
are set
> Hardcoded defaults for systemUsage not suitable for out of the box
> -------------------------------------------------------------------
>
> Key: AMQ-3573
> URL: https://issues.apache.org/jira/browse/AMQ-3573
> Project: ActiveMQ
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 5.5.1
> Reporter: Torsten Mielke
> Assignee: Rob Davies
> Labels: default, systemUsage
> Fix For: 5.6.0
>
> Attachments: AMQ-3573.patch
>
>
> Right now the default activemq.xml has the entire <systemUsage> section
> commented out. If commented, then the default systemUsage as defined in
> BrokerService.getSystemUsage() applies and uses these limits:
> memoryLimit 64 MB
> storeLimit: 10 GB
> tempLimit: 100 GB
> I don't think these are good default values as in the worst case the broker
> may use 110 GB of disk space. Many runtime environments will not have that
> much disk space and are therefore in danger of running out of disk space
> completely.
> IMHO some more sensitive defaults would be
> memoryLimit 64 MB
> storeLimit: 1 GB
> tempLimit: 1 GB
> to prevent the broker from using too much disk space by default.
> I believe most users of ActiveMQ are unaware of these defaults and probably
> don't expect the broker to use up to 110 GB of their disk.
> If anyone really needs large store and temp limit, they should explicitly
> configure for it.
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