How to limit the cores being used by a cluster?

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I am running a Standalone deploy cluster and I want to limit the number of cores being from the application across the cluster to 2. How can I do this?
Mar 11 in Apache Spark by Tina
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You can set the maximum number of cores that can be requested by the application. Refer to the command below:

val sc = new SparkContext(new SparkConf())
./bin/spark-submit <all your existing options> --spark.cores.max=2
answered Mar 11 by Raj

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