Hadoop 2.3.0 over windows 2008 r2 x64 about nodema

问题:

everybody, Recently I used Cygwin64, Maven, JDK1.7x64 and hadoop 2.3.0 Src to build package on Windows 2008 r2 x64,and it build success. Finally I set all parameters of hdfs-site.xml,yarn-site.xml,core-site.xml and mapred-site.xml.

I go forward to format namenode and excute start-dfs.cmd,the namenode and datanode all work fine. But when I excute start-yarn.cmd to start resourcemanager and nodemanager,only the resourcemanager works fine. The nodemanager cmd window shows "The System cannot find the specific batch label - nodemanager"...

Please give me any possible suggestion.

回答1:

I replaced LF with CRLF in yarn.cmd in %HADOOP_HOME%\bin using and it worked for me (didn't even have to change to ANSI encoding).

Easiest way for me was to use Search->Replace (Ctrl+H) in Notepad++, set the search mode to extended, and replace \n with \r\n.

回答2:

Open the yarn.cmd file from %HADOOP_HOME%\bin and save the file with ANSI encoding and also change line endings to windows (CR+LF) from unix (LF) using Notepad2. Then run the below command:

%HADOOP_HOME%\sbin\start-yarn.cmd

It worked fine for me after changing the file encoding.

回答3:

Just rename Nodemanager to NodeManager.

回答4:

Copied from comment by @tanza9

In Notepad++, you can go to Edit -> EOL Conversion -> Windows Format, then save the file and try again.