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https://issues.apache.org/jira/browse/FALCON-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15670199#comment-15670199
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Srikanth Sundarrajan commented on FALCON-2182:
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I have reservations with the following :
1. The fact that entities generated can be tampered with
2. Entities can be submitted / deleted / updated independently
The benefit of an extension being a black box with a defined functionality is
somehow lost in this scheme. I do, however appreciate the concern in trying to
make this any more complex than it ought to be (by treating the whole thing as
a single atomic unit). Please do consider the following tweak in the approach
* Don't allow the entities to be tampered with before submission
* All entities will be created / updated / deleted through the extension, but
not directly (it should be possible to lock them down preventing independent
update)
* While instances can be managed independently, entity submission, updates or
deletes should be disallowed directly.
* Create a simple overlay mechanism (similar to oozie.launcher.*) to override
configuration to tune (not alter) the functioning.
The primary motivation behind this is that Instance management at best can
stall the pipeline, but direct entity management can actually alter the
functionality itself.
> Add support for Falcon user extensions
> --------------------------------------
>
> Key: FALCON-2182
> URL: https://issues.apache.org/jira/browse/FALCON-2182
> Project: Falcon
> Issue Type: New Feature
> Components: extensions
> Reporter: Pallavi Rao
> Attachments: FalconUserExtensions.pdf
>
>
> Currently server-side trusted extensions are supported (see FALCON-634 for
> more details).
> Need to extend the Falcon Extensions to support extensions built by users.
> For example, lets say a user wants to add an extension for "data-quality
> check". This shouldn't require it to be compiled and tested with Falcon
> build. User should be able to add it on-the-fly (while the Falcon Server is
> running) and other users should be able to discover it, and "instantiate"
> this new extension.
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