You can establish up to 20 HTTP 1.1 connections across a subset of CEE servers. Each node in an Isilon cluster can select up to five CEE servers for delivery. The CEE servers are shared in a global configuration and are configured with OneFS by adding the URI of each server to the OneFS configuration.
After configuring the CEE servers, a node in an Isilon cluster automatically selects the CEE servers from a sorted list of CEE URIs. The servers are selected starting from the node's logical node number offset within the sorted list. When a CEE server is unavailable, the next available server is selected in the sorted order. All the connections are evenly distributed between the selected servers. When a node is moved because a CEE server was previously unavailable, checks are made every 15 minutes for the availability of the CEE server. The node is moved back as soon as the CEE Server is available.
Follow some of these best practices before configuring the CEE servers:
- We recommend that you provide only one CEE server per node. You can use extra CEE servers beyond theIsilon cluster size only when the selected CEE server goes offline.
In a global configuration, there should be one CEE server per node.
- Configure the CEE server and enable protocol auditing at the same time. If not, a backlog of events might accumulate causing stale delivery for a period of time.
You can either receive a global view of the progress of delivery of the protocol audit events or you can receive a logical node number view of the progress by running the isi audit progress view command.