I'm doing a new algorithm for scheduling in Hadoop. But I don't know How to test it. I got Hadoop source code, It has a lot of code and packages. I think should follow "YarnResourceManager" . How to do this work? Can simulation be? During my work, I want to get the nodes and give them score, but I do not know which code should be import in my program. Is there a more comfortable way to simulate? ... View more

I'm new to Hadoop. I want to run a MapReduce example and see its results with calculator mapper. That is, I want to know, each intermediate result is calculated by which mapper? Is it possible? How? I installed Hadoop 2.9.0 (multi-node cluster). ... View more