[ https://issues.apache.org/jira/browse/YARN-941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junping Du updated YARN-941: ---------------------------- Target Version/s: (was: 2.8.0) > RM Should have a way to update the tokens it has for a running application > -------------------------------------------------------------------------- > > Key: YARN-941 > URL: https://issues.apache.org/jira/browse/YARN-941 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Robert Joseph Evans > Assignee: Xuan Gong > Attachments: YARN-941.preview.2.patch, YARN-941.preview.3.patch, > YARN-941.preview.4.patch, YARN-941.preview.patch > > > When an application is submitted to the RM it includes with it a set of > tokens that the RM will renew on behalf of the application, that will be > passed to the AM when the application is launched, and will be used when > launching the application to access HDFS to download files on behalf of the > application. > For long lived applications/services these tokens can expire, and then the > tokens that the AM has will be invalid, and the tokens that the RM had will > also not work to launch a new AM. > We need to provide an API that will allow the RM to replace the current > tokens for this application with a new set. To avoid any real race issues, I > think this API should be something that the AM calls, so that the client can > connect to the AM with a new set of tokens it got using kerberos, then the AM > can inform the RM of the new set of tokens and quickly update its tokens > internally to use these new ones. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org