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Hadoop QA commented on YARN-913: -------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12669504/YARN-913-003.patch against trunk revision f24ac42. {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 32 new or modified test files. {color:red}-1 javac{color:red}. The patch appears to cause the build to fail. Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5004//console This message is automatically generated. > 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, resourcemanager > Affects Versions: 2.5.0, 2.4.1 > Reporter: Steve Loughran > Assignee: Steve Loughran > Attachments: 2014-09-03_Proposed_YARN_Service_Registry.pdf, > 2014-09-08_YARN_Service_Registry.pdf, RegistrationServiceDetails.txt, > YARN-913-001.patch, YARN-913-002.patch, YARN-913-003.patch, yarnregistry.pdf, > yarnregistry.tla > > > 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 was sent by Atlassian JIRA (v6.3.4#6332)