Explain about the popular use cases of Apache Spark

429

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Do you need to install Spark on all nodes of Yarn cluster while running Spark on Yarn?

649

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What are the different String functions available in pig?

818

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Differentiate between the physical plan and logical plan in Pig script?

772

---

What are the use cases of Apache Pig?

798

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What do you understand by an inner bag and outer bag in Pig?

855

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Explain different execution modes available in Pig?

786

---

How do users interact with HDFS in Apache Pig ?

759

---

what are the basic parameters of a Mapper?

814

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What is a MapReduce Combiner?

801

---

Where is Mapper output stored?

858

---

what is JobTracker in Hadoop? What are the actions followed by Hadoop?

769

---

Is it possible to split 100 lines of input as a single split in MapReduce?

966

---

What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?

886

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Is it possible to rename the output file?

792

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