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From "Balu Vellanki (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FALCON-1728) Process entity definition allows multiple clusters when it has output Feed defined.
Date Tue, 05 Jan 2016 21:29:39 GMT
Balu Vellanki created FALCON-1728:
-------------------------------------

             Summary: Process entity definition allows multiple clusters when it has output
Feed defined. 
                 Key: FALCON-1728
                 URL: https://issues.apache.org/jira/browse/FALCON-1728
             Project: Falcon
          Issue Type: Bug
          Components: process
    Affects Versions: 0.9
            Reporter: Balu Vellanki
            Assignee: Balu Vellanki
            Priority: Critical


Process XSD allows user to specify multiple clusters per process entity. I am guessing this
would allow a user to run duplicate instance of the process on multiple clusters at the same
time (I do not really see a need for this). When the process has an output feed defined, you
can have duplicate process instances writing to same feed instance, causing data corruption/failures.
The solution is to 
1. Do not allow multiple clusters per process. Let the user define a duplicate process if
user wants to run duplicate instances.  
OR
2. Allow multiple clusters, but only when there is no output feed defined.

[~sriksun] please let me know if there is any other reason for allowing multiple clusters
in a process. 



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