[ https://issues.apache.org/jira/browse/YARN-2571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269556#comment-14269556 ]
Steve Loughran commented on YARN-2571: -------------------------------------- Xuan 1. If you can show me an example of an active service to start with, I'll gladly make it active only 2. We're relying on operations to be idempotent: whoever creates last wins, whoever deletes last wins. There's some race conditions on cleanup if there's a change between a read and a delete, but that's what you get in a world without transactions. > RM to support YARN registry > ---------------------------- > > Key: YARN-2571 > URL: https://issues.apache.org/jira/browse/YARN-2571 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Steve Loughran > Assignee: Steve Loughran > Attachments: YARN-2571-001.patch, YARN-2571-002.patch, > YARN-2571-003.patch, YARN-2571-005.patch, YARN-2571-007.patch, > YARN-2571-008.patch, YARN-2571-009.patch > > > The RM needs to (optionally) integrate with the YARN registry: > # startup: create the /services and /users paths with system ACLs (yarn, hdfs > principals) > # app-launch: create the user directory /users/$username with the relevant > permissions (CRD) for them to create subnodes. > # attempt, container, app completion: remove service records with the > matching persistence and ID -- This message was sent by Atlassian JIRA (v6.3.4#6332)