How does Websphere Application Server handle high availability and failover scenarios?

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How does Websphere Application Server handle high availability and failover scenarios?

Websphere Application Server ensures high availability and failover using various features such as clustering, workload management, and session replication.

1. Clustering: Websphere allows multiple servers to work together as a single unit to ensure high availability. Clustering enables load balancing, failover, and scalability by distributing incoming requests among the servers in the cluster.

2. Workload Management: Websphere uses workload management to monitor the health and performance of servers in the cluster. It redirects traffic to healthy servers and enables failover in case of server failures.

3. Session Replication: Websphere supports session replication, where session data is synchronized across multiple servers in the cluster. This ensures that user sessions are available even if one of the servers fails.

Overall, Websphere Application Server's high availability and failover mechanisms ensure uninterrupted service for users and help maintain smooth operation of applications even in the face of hardware or software failures.