Openshift Logging Elasticsearch "os.cpu" metric is always 100% - Prometheus alert "AggregatedLoggingSystemCPUHigh" triggered
Issue
Elasticsearch reports "os.cpu" usage constantly at 100%. This causes Prometheus alert " AggregatedLoggingSystemCPUHigh" to trigger.
Environment
- Red Hat Openshift Container Platform (RHOCP) 4
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