Help Center/ MapReduce Service/ FAQs/ Cluster Management/ Why Is the Resource Pool Memory Displayed in the MRS Cluster Smaller Than the Actual Cluster Memory?
Updated on 2025-10-23 GMT+08:00

Why Is the Resource Pool Memory Displayed in the MRS Cluster Smaller Than the Actual Cluster Memory?

Question:

Why is the resource pool memory displayed in the MRS cluster smaller than the actual cluster memory?

Answer:

In an MRS cluster, MRS allocates 50% of the cluster memory to YARN by default. You manage YARN nodes logically by resource pool. Therefore, the total memory of the resource pool displayed in the cluster is only 50% of the total memory of the cluster.