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https://issues.apache.org/activemq/browse/SMX4KNL-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=48183#action_48183
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Adrian Trenaman commented on SMX4KNL-163:
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Hi Jamie, how are you getting on with this? 

I'm with Guillaume on the use of classname + Url, rather than using Derby:I 
have in mind an architecture where ActiveMQ is deployed in SMX4 in a 
master/slave scenario: I'd like the whole SMX4 kernel, including AMQ and all 
bundles etc - to wait until the lock is available before start-up. Have you 
thought about how your locking mechanism might interact with that of AMQ? 



> Provide default jdbc lock impl for master/slave deployments
> -----------------------------------------------------------
>
>                 Key: SMX4KNL-163
>                 URL: https://issues.apache.org/activemq/browse/SMX4KNL-163
>             Project: ServiceMix Kernel
>          Issue Type: New Feature
>         Environment: All
>            Reporter: Jamie Goodyear
>            Assignee: Jamie Goodyear
>             Fix For: 1.1.0
>
>         Attachments: smx4knl-163.txt
>
>
> Provide default jdbc lock impl for master/slave deployments.
> From note on SMX4KNL-106:
> By default, a file based locking mechanism is used. There is an interface 
> that can be implemented to allow other locking mechanisms such as JDBC. This 
> would require setting a system property for the class name of the lock (it 
> can be done in etc/system.properties) and changing the shell script to add 
> the needed jars to the boot classpath.

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