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Understand general cluster and yarn utilization graph in cloudera manager

Understand general cluster and yarn utilization graph in cloudera manager

Hi community,


I am trying to understand the cluster and yarn usage graphs in cloudera manager.
On the one hand, the General Cluster chart informs that 100% of the cluster CPU was used, while the YARN chart only reports that only 33.99% was used.
Why YARN 33.99%, if spark jobs have been executed that use 100% of the cluster?
The memory has the same behavior, only 19.07% when they have been used around 99% in job executions

 

Report_Utilization_Cluster.pngThank you very much for the clarification

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