Understanding Why Running the HDFS Balancer Leaves the Blocks Allocated to DataNodes Unchanged on the BDA (Doc ID 2142856.1)

Last updated on MAY 31, 2016

Applies to:

Big Data Appliance Integrated Software - Version 4.2.0 and later
Linux x86-64

Goal

After running the HDFS Balancer on the BDA cluster the number of blocks across the DataNodes remains unchanged. The concern is that the HDFS Balancer is not fully successful at balancing the cluster. The goal of this note is to explain the observation.

Solution

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