[GitHub] leventov opened a new pull request #6702: Add SelfDiscoveryResource

[GitBox <gi...@apache.org>]

leventov opened a new pull request #6702: Add SelfDiscoveryResource
URL: https://github.com/apache/incubator-druid/pull/6702
 
 
   Added `/selfDiscovery` endpoint. It returns a JSON map of the form `{"selfDiscovered": true/false}`, indicating whether the node has recieved a confirmation
   from the central node discovery mechanism (currently ZooKeeper) of the Druid cluster that the node has been added to the
   cluster. It is recommended to not consider a Druid node "healthy" or "ready" in automated deployment/container
   management systems until it returns `{"selfDiscovered": true}` from this endpoint.
   
   `Design Review` tag because endpoint is added.
   `Release Notes` tag to make Druid cluster operators to notice this change. 

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