Github user amberarrow commented on the pull request:
https://github.com/apache/incubator-apex-core/pull/314#issuecomment-213982499
One question: if partitions P{1,2} are shuffled to Q{1,2,3} via unifiers
U{1,2.3} and Q is now repartitioned
to Q{1,4} (i.e. Q2 and Q3 are discarded, Q4 is new and Q1 is preserved),
will we have these actions:
-- U1 preserved;
-- U{2,3} be killed; and
-- new unifier U4 created and deployed ?
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