Debugging tools: PIG

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What are the debugging tools for Apache Pig?
Can anyone explain in detail?
Sep 12, 2018 in Database by shams
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1 answer to this question.

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  • explain utility is helpful for Hadoop developers when trying to debug error or optimize PigLatin scripts. explain can be applied on a particular alias in the script or it can be applied to the entire script in the grunt interactive shell. explain utility produces several graphs in text format which can be printed to a file.
  • describe debugging utility is helpful to developers when writing Pig scripts as it shows the schema of a relation in the script. For beginners who are trying to learn Apache Pig can use the describe utility to understand how each operator makes alterations to data. A pig script can have multiple describes.
answered Sep 12, 2018 by kurt_cobain
• 9,280 points

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