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In-Tomcat or External Messaging Systems

SHRINE uses a message-oriented-middleware system to process queries and results asynchronously. Researchers can watch progress of their queries at different nodes, and see results as soon as any results are available. 

Starting in SHRINE 4.1 the hub admin can select from SHRINE's own in-tomcat message system, AWS SQS, or Kafka. It is possible to switch from one MOM system to another in shrine 4.1, but the process is not gentle: Stop all nodes on the network. Configure all nodes for the new messaging system. Restart all nodes in the network.

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