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https://issues.apache.org/jira/browse/NIFI-4872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeff Storck updated NIFI-4872:
------------------------------
    Description: 
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.

  was:
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 or more values from a fixed list of: CPU, 
Disk, Memory, Network.

By marking components with this new Annotation, we can update the generated 
Processor documentation to include this fact.


> 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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