Help Center/ Cloud Search Service/ User Guide (Paris and Amsterdam Regions)/ FAQs/ Resource Usage and Change/ The Average Memory Usage of an Elasticsearch Cluster Reaches 98%

Updated on 2023-06-20 GMT+08:00

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The Average Memory Usage of an Elasticsearch Cluster Reaches 98%

Symptom

The cluster monitoring result shows that the average memory usage of a cluster is 98%. Does it affect cluster performance?

Possible Cause

In an ES cluster, 50% of the memory is occupied by Elasticsearch and the other 50% is used by Lucene to cache files. It is normal that the average memory usage reaches 98%.

Solution

You can monitor the cluster memory usage by checking the maximum JVM heap usage and average JVM heap usage.

Parent topic: Resource Usage and Change

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