5.1.5. NameNode host CPU utilization

This host-level alert is triggered if the percent of CPU utilization on the master host exceeds the configured critical threshold. It uses the Nagios check_snmp_load plug-in. Potential causes
  • Unusually high CPU utilization: Can be caused by a very unusual job/query workload, but this is generally the sign of an issue in the daemon.

  • A down SNMP daemon on the master node, producing an unknown status Possible remedies
  • Use the top command to determine which processes are consuming excess CPU.

  • Reset the offending process

  • Check the status of the SNMP daemon

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