Hortonworks Exam Hadoop-PR000007 Topic 1 Question 64 Discussion

Actual exam question for Hortonworks's Hadoop-PR000007 exam

Question #: 64
Topic #: 1

[All Hadoop-PR000007 Questions]

Consider the following two relations, A and B .

Which Pig statement combines A by its first field and B by its second field?

AC = DOIN B BY a1, A by b2;

BC = JOIN A by al, B by b2;

CC = JOIN A a1, B b2;

DC = JOIN A SO, B $1;

Show Suggested Answer

Suggested Answer: C

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

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1 years ago

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

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1 years ago

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

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1 years ago

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

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1 years ago

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

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1 years ago

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

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1 years ago

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

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