Graphic Hub Administrator Guide
Version 3.2 | Published October 18, 2018 ©
Failover/Load Balancing
It is possible to configure Graphic Hub REST to support failover and load balancing. Graphic Hub REST is a standard HTTP server, so there is no need for integrated failover or load balancing logic. This requires setting up a failover and load balancing cluster. A network professional must configure a proxy and the DNS failover.
The proxy covers only the redundancy of Graphic Hub REST. It does not cover redundancy for Pilot or the Media Sequencer.
Important Notes
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Never call the configuration site through the proxy URL. Always use the direct server configuration URL instead.
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In a failover/load balancing proxy setup, always configure all Graphic Hub REST nodes to connect to the same Graphic Hub.
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For very large installations only: Use multiple automatically synchronized Graphic Hubs to increase the performance of big Graphic Hub REST clusters. You achieve this by utilizing the Graphic Hub Deploy Agent.
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Do not run a proxy on the same server as any Graphic Hub REST node.
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Add all IP addresses to the proxy configuration on servers with multiple network adapters.
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Some API calls do not work with a cluster configuration or multiple Graphic Hubs in a cluster:
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The REST resource monitoring and statistics do not work in a cluster.
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The Graphic Hub statistics, journals, and sessions, do not work in a cluster with clustered Graphic Hub RESTs connected to multiple Graphic Hubs.
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The API documentation states proxy cluster compatibility information for every endpoint.