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From "Nikos R. Katsipoulakis" <>
Subject Is there a single CustomKeyGrouping object per machine in a cluster?
Date Wed, 13 Apr 2016 15:31:18 GMT
Hello all,

I have a question that I would like your help with:

Let us assume that I have a cluster of machines and on one of them two
instances (executor threads) of Bolt A has been assigned. In addition, Bolt
A uses a CustomKeyGrouping policy, call it NikosGrouping, for pushing
tuples to some other bolts. If I have two executor threads running Bolt A
on one machine, will they share the same NikosGrouping object? Or, is there
going to be two different NikosGrouping objects?

Thank you,

Nikos R. Katsipoulakis,
Department of Computer Science
University of Pittsburgh

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