[jira] Commented: (AMQ-2467) Confusion with changes to the default activemq.xml configuration file

["Bruce Snyder (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/activemq/browse/AMQ-2467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=57821#action_57821 ] 

Bruce Snyder commented on AMQ-2467:
-----------------------------------

I concur with disabling producer flow control because I've heard the same comments from many users due to the fact that it is enabled by default. 

I concur with the use of disk space instead of blocking. I see that this requires a {{<pendingSubscriberPolicy>}} and a {{<pendingQueuePolicy>}} in the config, but shouldn't a {{<fileCursor />}} and a {{<fileQueueCursor />}} be used instead of a {{<vmCursor />}} and a {{<vmQueueCursor />}} to achieve disk usage? 

Both of these changes would allow the broker to run in an unencumbered state by default. This is what most users expect. We just need to make sure that this is adequately documented in the config. 

> Confusion with changes to the default activemq.xml configuration file 
> ----------------------------------------------------------------------
>
>                 Key: AMQ-2467
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2467
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.3.0
>            Reporter: Bruce Snyder
>            Assignee: Bruce Snyder
>             Fix For: 5.3.1
>
>         Attachments: AMQ-2467.patch.txt
>
>
> The original intent of AMQ-1894 was to make the default configuration more production ready instead of a demonstration of features. Evidently some of the changes to the default configuration from AMQ-1894 got crossed resulting in some undesirable changes including: 
> * [Revision 812481|http://svn.apache.org/viewvc?view=revision&revision=812481] commented out the {{<systemUsage>}} element entirely. 
> * [Revision 812481|http://svn.apache.org/viewvc?view=revision&revision=812481] also set the default {{memoryLimit}} attribute on {{<systemUsage>}} element to 20mb instead of the intended128mb. 
> * [Revision 813011|http://svn.apache.org/viewvc?view=revision&revision=813011] added back the {{memoryLimit}} attribute on {{<policyEntry>}} elements that apply to all destiations after this attribute had been removed entirely in the original patch. 
> * [Revision 819520|http://svn.apache.org/viewvc?view=revision&revision=819520] added a {{<pendingSubscriberPolicy>}} element to the {{<policyEntry>}} element for all topics. There should be no pendingSubscriberPolicy by default. 
> * [Revision 820563|http://svn.apache.org/viewvc?view=revision&revision=820563] added a {{<pendingSubscriberPolicy>}} element to the {{<policyEntry>}} element for all queues. There should be no pendingSubscriberPolicy by default. 
> * It also looks like some of the docs got goofed up so I'll fix that, too. 
> * There are also three web applications enabled that shouldn't be including camel, demo and fileserver 
> ** Enabling the camel web application also enables the camel JMX support which just confuses users who notice the camel JMX domain is present 
> The original patch for AMQ-1894 removed the {{<destinationPolicy>}} element entirely. At a later time it was agreed that it should be put back in but only to explicitly enable producer flow control. 
> This issue is to remedy these items using a new patch. 

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