balancing in hadoop


HDFS Rebalance 4

Whenever a new data node is added to the existing HDFS cluster or a data node is removed from the cluster then some of the data nodes in the cluster will have more/less blocks compared to other data nodes. In this unbalanced cluster, data read/write requests become very busy on some data nodes and some data nodes are under utilized. In such cases, to make all the data nodes space […]


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

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