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From jamborta <>
Subject Yarn number of containers
Date Thu, 25 Sep 2014 15:55:15 GMT
Hi all,

I am running spark with the default settings in yarn client mode. For some
reason yarn always allocates three containers to the application (wondering
where it is set?), and only uses two of them.

Also the cpus on the cluster never go over 50%, I turned off the fair
scheduler and set high spark.cores.max. Is there some additional settings I
am missing?


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