[jira] [Commented] (AMQ-3573) Hardcoded defaults for systemUsage not suitable for out of the box

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-3573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14964977#comment-14964977 ] 

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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