[Writable Warm] Adding Support For NodeResourceUsageStats in ClusterInfo #18472
Description
Please describe the end goal of this project
Description
For a given node in a Cluster, ResourceUsageStats like CPU, JVM, etc. are only available for its current Scope.
In-order to get stats for other nodes, it has to make a call to NodeStats API via an OpenSearch Client to get stats for other nodes.
Use Case
ResourceUsage Stats are key-indicators of a Cluster's state. These stats would help prevent any potential Cluster-Overloads while accepting Tiering Requests. A given node in a cluster should be able to fetch ResourceUsage Stats for all the nodes.
Changes
ClusterInfo is a Service which aggregates stats like DiskUsages,etc over all the nodes.
Changes involve addition of NodeResourceUsageStats to ClusterInfo to make the ResourceUsageStats available for all nodes.
Supporting References
Issues
Related component
Storage:Remote