What is OSv2 used for in a Mule runtime environment?

• A. Sharing and storing data between workers
• B. Managing user roles
• C. Handling external API calls
• D. Logging system events

Answer: (A)

OSv2 is the distributed object store in Mule runtimes, used to hold data that needs to be accessible by multiple workers or across the cluster. The key idea is cross-worker data sharing and state persistence: you can store values (like counters, tokens, session state, or coordination data) in one place so any worker can retrieve and update them as needed. This enables reliable collaboration between workers, especially in a clustered deployment, and helps with scenarios such as distributed caching or distributed locking. It’s not about managing user roles, making external API calls, or logging events—those concerns are handled by other parts of the runtime.