Help Center/Cloud Search Service/User Guide (Ally Region)/FAQs/CSS Cluster Monitoring and O&M/What Do I Do If the Average Memory Usage of a CSS Cluster Reaches 98%?
Updated on 2026-01-12 GMT+08:00
What Do I Do If the Average Memory Usage of a CSS 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 Elasticsearch 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:CSS Cluster Monitoring and O&M
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
The system is busy. Please try again later.
For any further questions, feel free to contact us through the chatbot.
Chatbot
