Answers by nitinrawat895

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How does HDFS Federation help HDFS Scale horizontally?

answered Jul 12, 2018 in Big Data Hadoop • 1,074 views
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How to avoid a “split-brain” scenario with NameNodes?

answered Jul 11, 2018 in Big Data Hadoop • 3,981 views
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How Namenode handles data node failures?

answered Jul 11, 2018 in Big Data Hadoop • 6,061 views
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What is the optimum number of producers to create in Kafka?

answered Jul 10, 2018 in Apache Kafka • 8,044 views
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Kafka topic not being deleted

answered Jul 9, 2018 in Apache Kafka • 2,817 views
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Is there any change in consumer offsets if a new partition(s) is added to a Kafka topic?

answered Jul 9, 2018 in Apache Kafka • 2,133 views
+1 vote

How to print the contents of RDD in Apache Spark?

answered Jul 6, 2018 in Apache Spark • 60,949 views
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How to use RDD filter with other function?

answered Jul 5, 2018 in Apache Spark • 9,278 views
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How to add third party java jars for use in PySpark?

answered Jul 4, 2018 in Apache Spark • 8,404 views
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Difference between sparkContext, JavaSparkContext, SQLContext, & SparkSession?

answered Jul 4, 2018 in Apache Spark • 4,990 views
+1 vote

map vs mapValues in Spark

answered Jun 29, 2018 in Apache Spark • 15,464 views
+1 vote

Which cluster type should I choose for Spark?

answered Jun 27, 2018 in Apache Spark • 1,273 views
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How to create new column with function in Spark Dataframe?

answered Jun 26, 2018 in Apache Spark • 87,726 views
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Which is better in term of speed, Shark or Spark?

answered Jun 26, 2018 in Apache Spark • 771 views
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How to analyze block placement on datanodes and rebalancing data across Hadoop nodes?

answered Jun 21, 2018 in Big Data Hadoop • 858 views
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Is there any way to setup Hadoop nodes (data nodes/namenodes) to use multiple volumes/disks?

answered Jun 20, 2018 in Big Data Hadoop • 795 views
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Ways to create RDD in Apache Spark

answered Jun 19, 2018 in Apache Spark • 3,884 views
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What do we mean by an RDD in Spark?

answered Jun 18, 2018 in Apache Spark • 3,844 views
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How RDD persist the data in Spark?

answered Jun 18, 2018 in Apache Spark • 1,210 views
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Is it mandatory to start Hadoop to run spark application?

answered Jun 14, 2018 in Apache Spark • 707 views
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