hadoop集群搭建配置参考（xml）

    fs.defaultFS
    hdfs://node1.itcast.cn:8020



    hadoop.tmp.dir
    /export/data/hadoop-3.1.4



    hadoop.http.staticuser.user
    root

    dfs.namenode.secondary.http-address
    node2.itcast.cn:9868

  mapreduce.framework.name
  yarn



  yarn.app.mapreduce.am.env
  HADOOP_MAPRED_HOME=${HADOOP_HOME}



  mapreduce.map.env
  HADOOP_MAPRED_HOME=${HADOOP_HOME}



  mapreduce.reduce.env
  HADOOP_MAPRED_HOME=${HADOOP_HOME}

    yarn.resourcemanager.hostname
    node1.itcast.cn



    yarn.nodemanager.aux-services
    mapreduce_shuffle



  yarn.scheduler.minimum-allocation-mb
  512



  yarn.scheduler.maximum-allocation-mb
  2048



  yarn.nodemanager.vmem-pmem-ratio
  4