[GitHub] nifi pull request #575: NIFI-619: Make MonitorActivity more cluster friendly

[ijokarumawak]

GitHub user ijokarumawak opened a pull request:

    https://github.com/apache/nifi/pull/575

    NIFI-619: Make MonitorActivity more cluster friendly

    - Added 'Monitoring Scope' property
    - Persist the latest activity as Cluster state
    - Examine cluster state on each node if necessary
    
    <img width="762" alt="monitoractivity-config" 
src="https://cloud.githubusercontent.com/assets/1107620/16346160/d7526104-3a80-11e6-85eb-f9a6fd8af206.png";>
    
    ## Test
    
    - Setup data flow as shown in the screenshot, using a 3 node cluster
    - GenerateFlowFile is scheduled on primary.
    - Monitoring Scope = Node
         - [ok] Even if GenerateFlowFile is running, non-primary nodes will 
report inactive messages.
         - [ok] If GenerateFlowFile stops, all nodes report inactive messages.
         - [ok] If GenerateFlowFile resumes, primary node reports 
activity.restored, but other nodes don't
    - Monitoring Scope = Cluster
         - [ok] While GenerateFlowFile is running, none of nodes reports 
inactive messages.
         - [ok] If GenerateFlowFile stops, all nodes report inactive messages.
         - [ok] If GenerateFlowFile resumes, all node reports 
activity.restored, if copy attribute is true, then non-primary nodes copy 
attributes from state.
    - Confirmed it works on Standalone NiFi instance, too
    
    <img width="955" alt="monitoractivity-test" 
src="https://cloud.githubusercontent.com/assets/1107620/16346162/d920d344-3a80-11e6-886b-2acd54315968.png";>
    


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

    $ git pull https://github.com/ijokarumawak/nifi nifi-619

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

    https://github.com/apache/nifi/pull/575.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 #575
    
----
commit 3726e34eb6cb5c568ee14fa0262faf1968435dd8
Author: Koji Kawamura <ijokaruma...@gmail.com>
Date:   2016-06-24T17:52:07Z

    NIFI-619: Make MonitorActivity more cluster friendly
    
    - Added 'Monitoring Scope' property
    - Persist the latest activity as Cluster state
    - Examine cluster state on each node if necessary

----


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