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Xiaobian to share with you how to recompile hadoop source code, I believe most people still do not know how, so share this article for your reference, I hope you have a lot of harvest after reading this article, let's go to understand it together!

Hadoop-1.0.3 source code download address:

http://svn.apache.org/repos/asf/hadoop/common/tags/release-1.0.3/

Experimental environment: redhat version

Red Hat Enterprise Linux Server release 6.5 (Santiago)

Recompile hadoop source code in redhat.

1. Migrate hadoop-1.0.3 source code from svn

[hadoop@master hadoop-p]$ svn co http://svn.apache.org/repos/asf/hadoop/common/tags/release-1.0.3/

2. Compile hadoop in the directory where the build.xml file is located

[hadoop@master release-1.0.3]$ ant

Compile error: type parameter? extends T is not in the range of type variable E Detailed error information:

compile:

[echo] contrib: gridmix

[javac] Compiling 31 source files to /home/hadoop/hadoop-p/release-1.0.3/build/contrib/gridmix/classes

[javac] /home/hadoop/hadoop-p/release-1.0.3/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java:396: Error: Type parameter? extends T is not in the range of type variable E

[javac] private String getEnumValues(Enum

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