Massive I/O Caused by Spilled Records in Partition and Sort phases


Hadoop Performance Tuning 4

Hadoop Performance Tuning There are many ways to improve the performance of Hadoop jobs. In this post, we will provide a few MapReduce properties that can be used at various mapreduce phases to improve the performance tuning. There is no one-size-fits-all technique for tuning Hadoop jobs, because of the architecture of Hadoop, achieving balance among resources is often more effective than addressing a single problem. Depending on the type of job […]


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I have attended Siva’s Spark and Scala training. He is good in presentation skills and explaining technical concepts easily to everyone in the group. He is having excellent real time experience and provided enough use cases to understand each concepts. Duration of the course and time management is awesome. Happy that I found a right person on time to learn Spark. Thanks Siva!!!

Dharmeswaran ETL / Hadoop Developer Spark Nov 2016 September 21, 2017

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