[ https://issues.apache.org/jira/browse/YARN-2078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsuyoshi OZAWA updated YARN-2078: --------------------------------- Description: 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} was: We should document the condition when uber mode is enabled. If not, users need to read code. {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} > yarn.app.am.resource.mb/cpu-vcores affects uber mode but is not documented > -------------------------------------------------------------------------- > > Key: YARN-2078 > URL: https://issues.apache.org/jira/browse/YARN-2078 > Project: Hadoop YARN > Issue Type: Bug > 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 (v6.2#6252)