• hadoop conf中xml文件修改


     core-site.xml

    <?xml version="1.0"?>
    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>
      <property>-------指定NameNode主机名与端口号
        <name>fs.default.name</name>
        <value>hdfs://localhost:9000</value>
      </property>
      <property>
        <name>hadoop.tmp.dir</name>
        <value>/opt/data/tmp</value>
      </property>
    </configuration>

    hdfs-site.xml

    <?xml version="1.0"?>
    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>
      <property>-------设置HDFS的副本数
        <name>dfs.replication</name>
        <value>1</value>
      </property>
      <property>
        <name>dfs.permissions</name>
        <value>false</value>
      </property>
    </configuration>

    mapred-site.xml

    <?xml version="1.0"?>
    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>
      <property>-------指定JobTracker的主机与端口号
        <name>mapred.job.tracker</name>
        <value>localhost:9001</value>
      </property>
    </configuration>

    masters---------指定SecondaryNameNode的位置

    localhost

    slavers----------指定DataNode和TaskTracker的位置

    localhost

    格式化

    [hadoop@localhost bin]$ hadoop namenode -format

  • 相关阅读:
    050819no JLINK device found
    050819流水账
    C语言附录的一些小摘要
    020819存疑点&error&warning
    020819流水账
    010819流水账
    310719存疑点&error&warning
    310719流水账
    300719流水账
    linux内核获取当前进程路径分析
  • 原文地址:https://www.cnblogs.com/longjshz/p/4396522.html
Copyright © 2020-2023  润新知