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Steve Loughran commented on YARN-913: ------------------------------------- I think YARN-1143 might be relevant here: restrict the valid types and names of apps to hostname-valid strings. This would let us provide a DNS-based registry. Maybe the restriction could be applied purely to long-lived services if we felt it was too late > Add a way to register long-lived services in a YARN cluster > ----------------------------------------------------------- > > Key: YARN-913 > URL: https://issues.apache.org/jira/browse/YARN-913 > Project: Hadoop YARN > Issue Type: New Feature > Components: api > Affects Versions: 3.0.0 > Reporter: Steve Loughran > > In a YARN cluster you can't predict where services will come up -or on what > ports. The services need to work those things out as they come up and then > publish them somewhere. > Applications need to be able to find the service instance they are to bond to > -and not any others in the cluster. > Some kind of service registry -in the RM, in ZK, could do this. If the RM > held the write access to the ZK nodes, it would be more secure than having > apps register with ZK themselves. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira