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Vinod Kumar Vavilapalli updated YARN-1307: ------------------------------------------ Attachment: YARN-1307.13.patch The last patch looks good. Minor changes: - Renamed -- RM_DT_DELEGATION_TOKEN_ZNODE_NAME to RM_DELEGATION_TOKENS_ROOT_ZNODE_NAME -- RM_DT_MASTER_KEY_ZNODE_NAME to RM_DT_MASTER_KEYS_ROOT_ZNODE_NAME -- RMDTDelegationToken node to RMDelegationTokensRoot -- RMDelegationKey node to RMDTMasterKeysRoot node -- masterKeyRootPath field to dtMasterKeysRootPath -- delegationTokenPath to delegationTokensRootPath -- nodeCreatePath to nodeUpdatePath -- attemptName to attemptIDStr - Removed the useless appAttemptID check. Will check it in if Jenkins says okay. > Rethink znode structure for RM HA > --------------------------------- > > Key: YARN-1307 > URL: https://issues.apache.org/jira/browse/YARN-1307 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Tsuyoshi OZAWA > Assignee: Tsuyoshi OZAWA > Attachments: YARN-1307.1.patch, YARN-1307.10.patch, > YARN-1307.11.patch, YARN-1307.12.patch, YARN-1307.13.patch, > YARN-1307.2.patch, YARN-1307.3.patch, YARN-1307.4-2.patch, > YARN-1307.4-3.patch, YARN-1307.4.patch, YARN-1307.5.patch, YARN-1307.6.patch, > YARN-1307.7.patch, YARN-1307.8.patch, YARN-1307.9.patch, YARN-1307.9.patch > > > Rethink for znode structure for RM HA is proposed in some JIRAs(YARN-659, > YARN-1222). The motivation of this JIRA is quoted from Bikas' comment in > YARN-1222: > {quote} > We should move to creating a node hierarchy for apps such that all znodes for > an app are stored under an app znode instead of the app root znode. This will > help in removeApplication and also in scaling better on ZK. The earlier code > was written this way to ensure create/delete happens under a root znode for > fencing. But given that we have moved to multi-operations globally, this isnt > required anymore. > {quote} -- This message was sent by Atlassian JIRA (v6.1.4#6159)