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From Pramod Immaneni <pra...@datatorrent.com>
Subject [Proposal] Simulate setting for application launch
Date Tue, 19 Dec 2017 16:32:40 GMT
I have a mini proposal. The command get-app-package-info runs the
populateDAG method of an application to construct the DAG but does not
actually launch the DAG. An application developer does not know in which
context the populateDAG is being called. For example, if they are recording
application starts in an external system from populateDAG, they will have
false entries there. This can be solved in different ways such as
introducing another method in StreamingApplication or more parameters
to populateDAG but a non disruptive option would be to add a property in
the configuration object that is passed to populateDAG to indicate if it is
simulate/test mode or real launch. An application developer can use this
property to take the appropriate actions.


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