Pierre Villard commented on NIFI-4872:

[~jtstorck] - cool! Sounds good to me!

> NIFI component high resource usage annotation
> ---------------------------------------------
>                 Key: NIFI-4872
>                 URL: https://issues.apache.org/jira/browse/NIFI-4872
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Core Framework, Core UI
>    Affects Versions: 1.5.0
>            Reporter: Jeff Storck
>            Assignee: Jeff Storck
>            Priority: Critical
> NiFi Processors currently have no means to relay whether or not they have may 
> be resource intensive or not. The idea here would be to introduce an 
> Annotation that can be added to Processors that indicate they may cause high 
> memory, disk, CPU, or network usage. For instance, any Processor that reads 
> the FlowFile contents into memory (like many XML Processors for instance) may 
> cause high memory usage. What ultimately determines if there is high 
> memory/disk/cpu/network usage will depend on the FlowFiles being processed. 
> With many of these components in the dataflow, it increases the risk of 
> OutOfMemoryErrors and performance degradation.
> The annotation should support one value from a fixed list of: CPU, Disk, 
> Memory, Network.  It should also allow the developer to provide a custom 
> description of the scenario that the component would fall under the high 
> usage category.  The annotation should be able to be specified multiple 
> times, for as many resources as it has the potential to be high usage.
> By marking components with this new Annotation, we can update the generated 
> Processor documentation to include this fact.

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