Making changes in the hadoop source code -

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i've tried importing apache hadoop source code in eclipse. possible can debug how hadoop works running eclipse project itself? once modification complete, how should deploy , check?what procedure followed?

  • you first need download hadoop source code(version want).
  • install maven 3.0, protocolbuffer 2.5.0, cmake 2.6 or newer (if compiling native code) there "building.txt" file in source code. requirements needed building code given. follow it. read complete file. understand more things
  • run following commands after installing above

$ mvn install -dskiptests

$ mvn eclipse:eclipse -ddownloadsources=true -ddownloadjavadocs=true

  • now project eclipse ready.

1.file -> import...

2.choose "existing projects workspace".

3.select hadoop src folder root 4. click "finish"

check out link howtocontribute


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