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StorageGRID JMX becomes unavailable during heavy workloads

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Category:
storagegrid-webscale
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sgrid
Last Updated:

Applies to

NetApp StorageGRID

Issue

  • Unable to communicate with node alert triggers due to an unresponsive JMX service on a Storage Node but it resolves itself in a few minutes
  • A significant increase in the CPU Utilization iowait can be seen in Grafana> Node (Internal use)

          CPU_SPIKE.png

  • Large spikes in Disk Read and Disk Write latency are found in Grafana > Node (Internal use) correlating with CPU spikes 

         READ_LATENCY_SPIKE.png

         WRITE_LATENCY_SPIKE.png

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