在Linux中运行Flume失败

Question

当我将flume安装到Linux.I中时，我在运行flume时收到了一些警告，我按照以下步骤安装了flume。

>> sudo tar -xvf flume-ng-1.1.0-cdh4.0.1\(1\).tar.gz
>> export PATH=/home/hduser/downloads/flume-1.1.0- cdh4.0.1/bin:$PATH
>> $ sudo cp conf/flume-conf.properties.template conf/flume.conf

为了运行flume，我使用了以下命令

>> $ bin/flume-ng agent -n agent -f conf/flume.conf

但它显示了一些警告

hadoopmaster@HadoopMaster:/home/hduser/downloads/flume-ng$ sudo bin/flume-ng agent -n agent -f conf/flume.conf
Warning: No configuration directory set! Use --conf <dir> to override.
Warning: JAVA_HOME not set!
+ exec /usr/bin/java -Xmx20m -cp '/home/hduser/downloads/flume-ng/lib/*' -Djava.library.path= org.apache.flume.node.Application -n agent -f conf/flume.conf
log4j:WARN No appenders could be found for logger (org.apache.flume.lifecycle.LifecycleSupervisor).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Answer 1

如果希望从log4j附加器获得输出，则需要将-c配置文件添加到命令行。例如：

export JAVA_HOME=... # recommended to set JAVA_HOME properly
./bin/flume-ng agent -c conf -f conf/flume.conf -n agent

Answer 2

您必须在flume-env.sh文件中设置Java_Home路径

导出Java_Home = /user/lib/jvm/java_version_name

Answer 3

请设置HADOOP_HOME环境变量。