[ https://issues.apache.org/jira/browse/MAPREDUCE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsuyoshi OZAWA moved YARN-2078 to MAPREDUCE-6070: ------------------------------------------------- Component/s: (was: documentation) documentation Affects Version/s: (was: 2.4.0) 2.4.0 Issue Type: Improvement (was: Bug) Key: MAPREDUCE-6070 (was: YARN-2078) Project: Hadoop Map/Reduce (was: Hadoop YARN) > yarn.app.am.resource.mb/cpu-vcores affects uber mode but is not documented > -------------------------------------------------------------------------- > > Key: MAPREDUCE-6070 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6070 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: documentation > Affects Versions: 2.4.0 > Reporter: Tsuyoshi OZAWA > Assignee: Tsuyoshi OZAWA > Priority: Trivial > Attachments: YARN-2078.1.patch > > > We should document the condition when uber mode is enabled. Currently, users > need to read following code to understand the condition. > {code} > boolean smallMemory = > ( (Math.max(conf.getLong(MRJobConfig.MAP_MEMORY_MB, 0), > conf.getLong(MRJobConfig.REDUCE_MEMORY_MB, 0)) > <= sysMemSizeForUberSlot) > || (sysMemSizeForUberSlot == JobConf.DISABLED_MEMORY_LIMIT)); > boolean smallCpu = > Math.max( > conf.getInt( > MRJobConfig.MAP_CPU_VCORES, > MRJobConfig.DEFAULT_MAP_CPU_VCORES), > conf.getInt( > MRJobConfig.REDUCE_CPU_VCORES, > MRJobConfig.DEFAULT_REDUCE_CPU_VCORES)) > <= sysCPUSizeForUberSlot > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)