Hortonworks Exam Hadoop-PR000007 Topic 1 Question 64 Discussion

Actual exam question for Hortonworks's Hadoop-PR000007 exam

Question #: 64
Topic #: 1

To use a lava user-defined function (UDF) with Pig what must you do?

ADefine an alias to shorten the function name

BPass arguments to the constructor of UDFs implementation class

CRegister the JAR file containing the UDF

DPut the JAR file into the user's home folder in HDFS

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Suggested Answer: C

by Felix at Mar 09, 2024, 01:32 PM

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7 months ago

No, I don't think that's necessary. Just registering the JAR file should be enough.

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7 months ago

Do we need to put the JAR file into the user's home folder in HDFS as well?

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7 months ago

I believe that's important for the UDF to function correctly.

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7 months ago

Should we also pass arguments to the constructor of UDFs implementation class?

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8 months ago

Yes, that's correct. We have to make sure Pig can find the UDF.

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8 months ago

I think we need to register the JAR file containing the UDF.

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