Tuning Spark Jobs

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Here are some useful resources on how to tune Spark job in terms of number of executors, executor memory and number of cores.

http://blog.cloudera.com/blog/2015/03/how-to-tune-your-apache-spark-jobs-part-2/

http://etlcode.com/index.php/blog/info/Bigdata/Apache-Spark-tuning-spark-jobs-Optimal-setting-for-executor-core-and-memory

https://stackoverflow.com/questions/37871194/how-to-tune-spark-executor-number-cores-and-executor-memory

https://aranair.github.io/posts/2017/03/10/tuning-my-apache-spark-cluster-on-aws-emr/

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