5.3.6. Percent DataNodes storage full alert

This alert is triggered if the percentage of DataNodes in storage full condition exceeds the configured critical threshold. It uses the check_aggregate plugin, to aggregate the results of DATANODE::Storage full alert checks. Potential causes
  • Check for dead DataNodes in the Services list.

  • Data distribution among the live nodes is not balanced Possible remedies
  • Run the Hadoop Balancer tool to distribute data to relatively less used DataNodes, freeing up space on the full nodes.

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