End-of-Life (EoL)

Deploy Engines in a High Availability Environment

When adding application servers, update the engines to connect through the load balancer.
Engines deployed prior to the migration to Elasticsearch will remain connected to the newly migrated Cortex XSOAR application server.
When additional Cortex XSOAR application servers are deployed, and placed behind a load balancer, you need to update the engines to connect through the load balancer.
  1. Verify that the
    BaseURL
    and
    ExternalHostname
    server configurations have been updated on the servers to reference the load balancer url.
  2. Stop the engine service.
  3. Create a backup of the
    /usr/local/demisto/d1.conf
    file.
  4. Edit the
    /usr/local/demisto/d1.conf file
    on the engine.
    Set the first line in the EngineURLs, and AgentURLs sections to point to the new load balancer URL.
    { "LogLevel": "info", "LogFile": "d1.log", "EngineURLs": [ "wss://LOADBALANCERURL/d1ws" ], "AgentURLs": [ "wss://LOADBALANCERURL/d2ws" ], … }
  5. Start the engine service.
  6. Validate the engine is connected by going to
    Settings
    Engines
    .

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