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  • 【Hadoop】:配置出错error出现:Stop it first

    出现的错误如下:

    hadoop@mike-VirtualBox:/usr/local/hadoop/hadoop$ ./sbin/start-dfs.sh
    20/12/14 20:15:06 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
    Starting namenodes on [localhost]
    localhost: namenode running as process 8844. Stop it first.
    localhost: datanode running as process 9057. Stop it first.
    Starting secondary namenodes [0.0.0.0]
    0.0.0.0: secondarynamenode running as process 9312. Stop it first.
    20/12/14 20:15:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

    解决方法是首先停止启动所有的节点,使用命令行启动stop-all.sh脚本:

    ./sbin/stop-all.sh

    然后再次重新启动start-dfs.sh脚本,如下所示:

    hadoop@mike-VirtualBox:/usr/local/hadoop/hadoop$ ./sbin/start-dfs.sh
    Starting namenodes on [localhost]
    localhost: starting namenode, logging to /usr/local/hadoop/hadoop/logs/hadoop-hadoop-namenode-mike-VirtualBox.out
    localhost: starting datanode, logging to /usr/local/hadoop/hadoop/logs/hadoop-hadoop-datanode-mike-VirtualBox.out
    Starting secondary namenodes [0.0.0.0]
    0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/hadoop/logs/hadoop-hadoop-secondarynamenode-mike-VirtualBox.out

    这样就成功启动了!

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  • 原文地址:https://www.cnblogs.com/geeksongs/p/14135079.html
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