Make Yarn Client service shutdown operations robust ---------------------------------------------------
Key: MAPREDUCE-4023 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4023 Project: Hadoop Map/Reduce Issue Type: Sub-task Components: mrv2 Affects Versions: 0.24.0, 0.23.2 Reporter: Steve Loughran Assignee: Steve Loughran Priority: Minor Attachments: MAPREDUCE-4023.patch Make the yarn client services more robust against being shut down while not started, or shutdown more than once, by null-checking fields before closing them, setting to null afterwards to prevent double-invocation. This is a subset of MAPREDUCE-3502 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira