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From Dominik Safaric <dominiksafa...@gmail.com>
Subject Running the JobManager and TaskManager on the same node in a cluster
Date Wed, 16 Nov 2016 20:49:52 GMT

It is generally recommended for streaming engines, also including Flink to run a separate
master node - in the case of Flink, the JobManager. 

However, why should one in Flink run the JobManager on a separate node? 

Performance wise, the JobManager isn’t intense unlike of course TaskManagers. 

In terms of fault tolerance and a failing JobManager, semantically there is no difference.

Hence, what are the main reasons behind this rationale? 

Thanks in advance.  
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