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  • 一个Hadoop难以查找的错误

    This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
    Starting namenodes on [Master132.Hadoop]
    Master132.Hadoop: starting namenode, logging to /usr/hadoop/logs/hadoop-hadoop-namenode-Master132.Hadoop.out
    Slave110.Hadoop: /usr/hadoop/sbin/hadoop-daemon.sh: line 69: [: .out: integer expression expected
    Slave110.Hadoop: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-Slave110.Hadoop
    Slave131.Hadoop: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-Slave131.Hadoop.out
    Slave141.Hadoop: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-Slave141.Hadoop.out
    Slave110.Hadoop: Exception in thread "main" java.lang.NoClassDefFoundError: /log
    Slave110.Hadoop: Caused by: java.lang.ClassNotFoundException: .log
    Slave110.Hadoop:        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    Slave110.Hadoop:        at java.security.AccessController.doPrivileged(Native Method)
    Slave110.Hadoop:        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    Slave110.Hadoop:        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    Slave110.Hadoop:        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    Slave110.Hadoop:        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    Slave110.Hadoop: Could not find the main class: .log.  Program will exit.
    Starting secondary namenodes [Master132.Hadoop]
    Master132.Hadoop: starting secondarynamenode, logging to /usr/hadoop/logs/hadoop-hadoop-secondarynamenode-Master132.Hadoop.out
    starting yarn daemons
    starting resourcemanager, logging to /usr/hadoop/logs/yarn-hadoop-resourcemanager-Master132.Hadoop.out
    Slave110.Hadoop: /usr/hadoop/sbin/yarn-daemon.sh: line 72: [: .out: integer expression expected
    Slave110.Hadoop: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-Slave110.Hadoop
    Slave131.Hadoop: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-Slave131.Hadoop.out
    Slave141.Hadoop: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-Slave141.Hadoop.out
    Slave110.Hadoop: Exception in thread "main" java.lang.NoClassDefFoundError: /log
    Slave110.Hadoop: Caused by: java.lang.ClassNotFoundException: .log
    Slave110.Hadoop:        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    Slave110.Hadoop:        at java.security.AccessController.doPrivileged(Native Method)
    Slave110.Hadoop:        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    Slave110.Hadoop:        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    Slave110.Hadoop:        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    Slave110.Hadoop:        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    Slave110.Hadoop: Could not find the main class: .log.  Program will exit.

    周末,原本搭建好的Hadoop集群在启动中突然报出以上的错误!一个节点不好用了!经过了各种查找,还是没有解决。

    今天终于查到原因了!datenode节点Slave110.Hadoop的主机名后面不知道什么时候添加了一个空格!删除就好了!崩溃

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  • 原文地址:https://www.cnblogs.com/hutou/p/space.html
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