ASF GitHub Bot commented on MINIFICPP-31:

GitHub user achristianson opened a pull request:


    MINIFICPP-31 Added UpdateAttribute processor

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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/achristianson/nifi-minifi-cpp MINIFICPP-31

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #262
commit fb4e92d20c578299780fcf764fc9d0636af3259d
Author: Andrew I. Christianson <andy@...>
Date:   2018-02-08T18:51:08Z

    MINIFICPP-31 Added UpdateAttribute processor


> Support UpdateAttribute for nifi-minifi-cpp
> -------------------------------------------
>                 Key: MINIFICPP-31
>                 URL: https://issues.apache.org/jira/browse/MINIFICPP-31
>             Project: NiFi MiNiFi C++
>          Issue Type: New Feature
>            Reporter: Randy Gelhausen
>            Assignee: Andrew Christianson
>            Priority: Major
> nifi-minifi-cpp agents can generate multiple "streams" of flowfiles.
> For instance, to monitor a host, nifi-minifi-cpp runs nmon, ps, netstat, and 
> gathers logfiles from applications.
> But, for a given flowfile, any downstream NiFi collectors wont have 
> visibility into the originating hostname, nor metadata about which "stream" 
> (ExecuteProcess(nmon), ExecuteProcess(ps), TailFile(app1), TailFile(app2)) 
> generated it.
> One solution is to use a separate InputPort for each stream. This works, but 
> burdens both the team working on agent flows, and the team managing the 
> collector- they have to be in concert.
> A simpler (better?) approach is to allow agent teams to tag flowfiles with 
> differentiating metadata via use of UpdateAttribute.

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