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.

5.3.6.1. Potential causes

Check the list of live DataNodes by following the DataNodes (live/dead/decom) link on the Cluster Summary section of the Dashboard for the percent storage on all DataNodes.
Data distribution among the live nodes is not balanced

5.3.6.2. Possible remedies

Run the Hadoop Balancer tool to distribute data to relatively less used DataNodes, freeing up space on the full nodes.

Legal notices