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https://issues.apache.org/jira/browse/METRON-1100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122367#comment-16122367
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Otto Fowler commented on METRON-1100:
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[~mattf] :  [Lazy 
Loading|https://github.com/ottobackwards/metron/commit/ea8f3ae094a9acdd698f6efc81b4bcde1d6c6b57]
I have a working lazy loading branch.  I am no sure if you have time to look at 
it or not.  I am wondering if we should look to have it in 777 or not.

I am still working on it ( I can make it more efficient ).


> Dynamic loading of Metron bundles
> ---------------------------------
>
>                 Key: METRON-1100
>                 URL: https://issues.apache.org/jira/browse/METRON-1100
>             Project: Metron
>          Issue Type: Task
>            Reporter: Otto Fowler
>            Assignee: Otto Fowler
>
> If NiFi does not soon add these features to their NAR processing (per 
> METRON-1070), we should consider doing so:
> Load bundles dynamically at run-time, without restart, with the sub-goals of:
> - lazy loading instead of load all at startup, to minimize memory footprint
> - allow new bundles to be added to the system at any time, without restart, 
> to support long-running zero-outage installations
> Note it is fine (probably necessary) to have some sort of registration 
> process that runs at startup, and periodically or upon manual trigger 
> thereafter.  It can read the ClassIndex information of all bundle files in 
> the registered ExtensionDirectories, and use it to maintain a registry of 
> known bundles available, without actually loading them until needed.



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