Hortonworks Docs » managing and monitoring an ambari cluster 2.7.5 » Managing and Monitoring a Cluster
Managing and Monitoring a Cluster
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Rebalance HDFS blocks

HDFS provides a balancer utility to help balance the blocks across DataNodes in the cluster. To initiate a balancing process, follow these steps:
  1. In Ambari Web, browse to Services > HDFS > Summary.
  2. Click Service Actions > Rebalance HDFS.
  3. Enter the Balance Threshold value as a percentage of disk capacity.
  4. Click Start.
You can monitor or cancel a rebalance process by opening Background Operations.
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