hadoop - Flume--找不到主类 : org. apache.flume.tools.GetJavaProperty

Question

我正在使用 cloudera CDH 4.4。当我运行 flume cmd 时 -

"bin/flume-ng agent -n agentA -f conf/MultipleFlumes.properties -Dflume.root.logger=INFO,console"

我遇到了一个错误:

[cloudera@localhost Flume]$ bin/flume-ng agent -n agentA -f conf/MultipleFlumes.properties -Dflume.root.logger=INFO,console
Warning: No configuration directory set! Use --conf <dir> to override.
Info: Including Hadoop libraries found via (/usr/bin/hadoop) for HDFS access
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flume/tools/GetJavaProperty
Caused by: java.lang.ClassNotFoundException: org.apache.flume.tools.GetJavaProperty
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.apache.flume.tools.GetJavaProperty.  Program will exit.
Info: Excluding /usr/lib/hadoop/lib/slf4j-api-1.6.1.jar from classpath
Info: Excluding /usr/lib/hadoop/lib/slf4j-log4j12-1.6.1.jar from classpath
Info: Excluding /usr/lib/hadoop-0.20-mapreduce/lib/slf4j-api-1.6.1.jar from classpath
Info: Including HBASE libraries found via (/usr/bin/hbase) for HBASE access
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flume/tools/GetJavaProperty
Caused by: java.lang.ClassNotFoundException: org.apache.flume.tools.GetJavaProperty
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.apache.flume.tools.GetJavaProperty.  Program will exit.
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flume/node/Application
Caused by: java.lang.ClassNotFoundException: org.apache.flume.node.Application
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.apache.flume.node.Application.  Program will exit.

我试图回应 HADOOP_HOME 但它返回空白。以上命令有什么问题？请指导。

Answer 1

首先，将-c参数添加到命令中，如下所示:

bin/flume-ng agent -n agentA -c conf -f conf/MultipleFlumes.properties -Dflume.root.logger=INFO,console

添加该参数并不能解决问题，但如果您不包含它，您会因为 log4j 配置文件而收到另一个错误。

至于你的问题，检查是否定义了FLUME_HOME，如果是这样，用

取消设置

unset FLUME_HOME