Adding Shadow Scheduler Node without Business Outage - AutoSys

Products

• Autosys Workload Automation

Issue/Introduction

This article provides guidance on how to expand an existing AutoSys environment by adding a High Availability (HA) Scheduler node (Shadow or Secondary) without incurring a business outage or stopping the primary scheduler.

Environment

• Product: AutoSys Workload Automation
• Version: 12.x, 24.x
• OS: All supported platforms

Resolution

The AutoSys High Availability architecture allows you to register and configure new scheduler instances while the primary scheduler remains fully operational. Follow these steps to add a new node (e.g., ####Host4) as a Shadow Scheduler:

1. Install Binaries: Deploy the AutoSys scheduler binaries on the new server node.
2. Define Configuration: Update the config.$AUTOSERV file in the $AUTOUSER directory on the new node.
   • Set the RoleDesignator to '2' (or the next available role in your HA architecture).
3. Connectivity Check: Verify that the new node has network connectivity to the existing database. Ensure the service account has the necessary permissions.
4. Activate Node: Start the AutoSys services on the new node. The node will connect to the shared database and join the cluster in a dormant/shadow state.
5. Verify Status: Run chk_auto_up  to confirm the new host is recognized as a member of the HA cluster.

Additional Information

• For detailed parameter definitions, see Configure an Instance (AutoSys Administration).
• Switching Primary and Shadow Scheduler roles
• If you are in a Full HA mode (Dual Database), ensure the Tie-Breaker node is also updated if applicable.
• To speak with a customer representative or a Support Engineer see Contact Support. Scroll to the bottom of the page and click on the respective region.