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Roles of Different Nodes in Analytics Cluster

Question: What are the roles of different nodes in analytics cluster?

Answer:

Roles of different nodes in analytics cluster are:

Analytics nodes: Stores historical data.
Search Nodes: Stores flow logs (such as flow logs, access logs and so on) for diagnostics purposes. This node uses search engine to filter the logs.

The table shows behavior of the Analytics cluster based on the role assigned to the nodes.

Node Types	Expected Behavior
Search 1(down), Search 2(down), Analytics 1(up), Analytics 2(up)	Search functionality will not be available. Log data will not be stored. Analytics data can still be stored and retrieved.
Search 1(up), Search 2(up) Analytics 1(down), Analytics 2(down)	Search functionality will be available. Analytics data will not be stored and retrieved. Attempts to log in to analytics will fail because the user information needed to perform the RBAC function during login is not accessible.
Search 1(down), Search 2(down) Analytics 1(down), Analytics 2(up)	Analytics data will be stored and can be retrieved. Search functionality will not be available.
Search 1(down), Search 2(up) Analytics 1(down), Analytics 2(down)	Search functionality will be available. Analytics data will not be stored and retrieved. Attempts to log in to analytics will fail because the user information needed to perform the RBAC function during login is not accessible.