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https://issues.apache.org/jira/browse/METRON-1100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549590#comment-16549590
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Otto Fowler commented on METRON-1100:
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Bundles and extensions never happened
> Dynamic loading of Metron bundles
> ---------------------------------
>
> Key: METRON-1100
> URL: https://issues.apache.org/jira/browse/METRON-1100
> Project: Metron
> Issue Type: Task
> Reporter: Matt Foley
> Assignee: Otto Fowler
> Priority: Major
>
> 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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