Hadoop2.2内存参数模板

配置选项 默认值
mapreduce.map.java.opts -Xmx512m
mapreduce.reduce.java.opts -Xmx768m
mapreduce.map.memory.mb 768
mapreduce.reduce.memory.mb 1024
yarn.app.mapreduce.am.resource.mb 1024
yarn.scheduler.minimum-allocation-mb 256
yarn.scheduler.maximum-allocation-mb 2048
yarn.nodemanager.resource.memory-mb 2048