This document discusses Oozie's high availability (HA) solution. It allows multiple Oozie servers to run against the same database, providing active-active HA and horizontal scalability. A load balancer provides a single entry point to the Oozie servers. ZooKeeper coordinates the servers and enables services like locking and log streaming across servers. Configuration changes allow point Oozie to the ZooKeeper ensemble and load balancer, and enable HA services. Users can now view and access logs from any server, without needing to know which server processed their jobs.