GitHub user YolandaMDavis opened a pull request:

    https://github.com/apache/nifi/pull/2107

    NIFI-4310 - added changes to support detection of reporting tasks and…

    … controller services during isEmpty flow check. Added testing scenarios
    
    Recommend the following tests scenarios are included:
    
    - Confirm cluster starts after flow election with empty flows on all nodes
    - Confirm start after election initiated for cluster having all but one 
node containing empty flows (one remaining node contains flow populated with 
root process group) 
    - Confirm start after election initiated for cluster containing 1/2 nodes 
with empty flows (remaining halves would contain flows with only controller 
services).
    - Confirm start after election initiated for cluster containing 1/2 nodes 
with empty flows (remaining halves would contain flows with only reporting 
tasks).
    
    Thank you for submitting a contribution to Apache NiFi.
    
    In order to streamline the review of the contribution we ask you
    to ensure the following steps have been taken:
    
    ### For all changes:
    - [x] Is there a JIRA ticket associated with this PR? Is it referenced 
         in the commit message?
    
    - [x] Does your PR title start with NIFI-XXXX where XXXX is the JIRA number 
you are trying to resolve? Pay particular attention to the hyphen "-" character.
    
    - [ ] Has your PR been rebased against the latest commit within the target 
branch (typically master)?
    
    - [ x] Is your initial contribution a single, squashed commit?
    
    ### For code changes:
    - [x ] Have you ensured that the full suite of tests is executed via mvn 
-Pcontrib-check clean install at the root nifi folder?
    - [x] Have you written or updated unit tests to verify your changes?
    - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)? 
    - [ ] If applicable, have you updated the LICENSE file, including the main 
LICENSE file under nifi-assembly?
    - [ ] If applicable, have you updated the NOTICE file, including the main 
NOTICE file found under nifi-assembly?
    - [ ] If adding new Properties, have you added .displayName in addition to 
.name (programmatic access) for each of the new properties?
    
    ### For documentation related changes:
    - [ ] Have you ensured that format looks appropriate for the output in 
which it is rendered?
    
    ### Note:
    Please ensure that once the PR is submitted, you check travis-ci for build 
issues and submit an update to your PR as soon as possible.


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

    $ git pull https://github.com/YolandaMDavis/nifi NIFI-4310

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

    https://github.com/apache/nifi/pull/2107.patch

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

    This closes #2107
    
----
commit 028e381e281d982cc6683c9a0949a3dc820b55d7
Author: Yolanda M. Davis <[email protected]>
Date:   2017-08-23T05:53:49Z

    NIFI-4310 - added changes to support detection of reporting tasks and 
controller services during isEmpty flow check. Added testing scenarios

----


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