Hadoop query regarding setJarByClass method of Job class

Question

Can anyone help in understanding the setJarByClass in MapReduce program? Is it used to create a JAR file of the give class?

Answer 1

setJarByClass method basically tells the nodes where tp look for Mapper & Reducer classes.

It is not the one who creates the JAR of the given class. Rather it resolves the jar which has the respective class.

Answer 2

http://www.bigdataspeak.com/2014/06/what-is-need-to-use-jobsetjarbyclass-in.html

Comments

Thanks siri..

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Hi @Siri,

We appreciate you sharing the link of a valuable resource but we'd appreciate more if you explain your answer along with it.