Recent questions tagged apache-spark

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What is Action in Spark?

Jul 3, 2019 in Apache Spark by roza
 • 12,167 views
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1 answer

What is Map and flatMap in Spark?

Jul 3, 2019 in Apache Spark by Naina
 • 2,223 views
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1 answer

Why Partitions are immutable in Spark?

Jul 3, 2019 in Apache Spark by neha
 • 2,364 views
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1 answer

How SparkSQL is different from HQL and SQL?

Jul 3, 2019 in Apache Spark by Ranjan
 • 4,139 views
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1 answer

What is Piping in Spark?

Jul 3, 2019 in Apache Spark by Diana
 • 3,420 views
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What is the difference between persist() and cache() in apache spark?

Jul 3, 2019 in Apache Spark by Nihal
 • 3,881 views
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1 answer

What is meant by Transformation? Give some examples.

Jul 3, 2019 in Apache Spark by deric
 • 968 views
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When we create an RDD, does it bring the data and load it into the memory?

Jul 3, 2019 in Apache Spark by monalisa
 • 1,377 views
+1 vote
2 answers

What is sparkContext?

Jul 3, 2019 in Apache Spark by Liza
 • 2,277 views
+1 vote
1 answer

What is reduce() action in Spark?

Jul 2, 2019 in Apache Spark by amrita
 • 5,877 views
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1 answer

What is persist() in Spark?

Jul 2, 2019 in Apache Spark by Tina
 • 826 views
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1 answer

What is a Parquet file in Spark?

Jul 2, 2019 in Apache Spark by Anindit
 • 1,613 views
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1 answer

What is GraphX in Spark?

Jul 2, 2019 in Big Data Hadoop by Nitin
 • 1,242 views
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what are the commonly used Spark ecosystem?

Jul 2, 2019 in Big Data Hadoop by ranjan
 • 609 views
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1 answer

what is Hive on spark?

Jul 2, 2019 in Big Data Hadoop by Nikhil
 • 1,323 views
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By which components spark ecosystem libraries are composed of?

Jul 1, 2019 in Apache Spark by zaved
 • 791 views
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1 answer

What is polyglot in spark?

Jul 1, 2019 in Apache Spark by Lisa
 • 2,955 views
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1 answer

What is RDD in Apache spark?

Jul 1, 2019 in Apache Spark by Lila
 • 1,588 views
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1 answer

What are the challenges we faced as Hadoop Admin?

Jun 25, 2019 in Big Data Hadoop by deepak
 • 2,631 views
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1 answer

Spark CLI issue

Jun 19, 2019 in Apache Spark by Giri
 • 944 views
0 votes
1 answer

Spark foldbykey doubt

Jun 19, 2019 in Apache Spark by Jai
 • 3,090 views
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1 answer

Is there a possibility to run Apache Spark without Hadoop?

Jun 6, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,640 views
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1 answer

Error: org.apache.thrift.transport.TTransportException (state=08S01,code=0)

Jun 4, 2019 in Big Data Hadoop by Guru
 • 12,618 views
+1 vote
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_spark_metadata/0 doesn't exist while Compacting batch 9 Structured streaming error

May 31, 2019 in Apache Spark by AzimKangda
 • 130 points • 4,384 views
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1 answer

Starting Spark Scala console

May 24, 2019 in Apache Spark by Rishi
 • 792 views
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1 answer

Spark Error: java.lang.IllegalStateException: Cannot call methods on a stopped SparkContext.

May 24, 2019 in Apache Spark by Paul
 • 11,100 views
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1 answer

Spark: Problem creating RDD

May 24, 2019 in Big Data Hadoop by Karan
 • 824 views
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1 answer

Difference between RDD as val and var

May 23, 2019 in Apache Spark by SHeen
 • 2,649 views
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1 answer

Error while reading multiline Json

May 23, 2019 in Apache Spark by Ritu
 • 2,951 views
0 votes
1 answer

Starting Spark in Windows

May 22, 2019 in Apache Spark by Jishan
 • 1,124 views
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1 answer

Spark: Saving file csv

May 22, 2019 in Apache Spark by Jai
 • 2,808 views
+1 vote
2 answers

How can I convert Spark Dataframe to Spark RDD?

Jul 4, 2018 in Apache Spark by code799
 • 21,106 views
0 votes
1 answer

Difference between Spark ML & Spark MLlib package

Jul 4, 2018 in Apache Spark by code799
 • 2,519 views
0 votes
3 answers

Sorting rows in descending order in Spark SQL

Jul 4, 2018 in Apache Spark by code799
 • 16,963 views
+2 votes
14 answers

How to create new column with function in Spark Dataframe?

Jun 26, 2018 in Apache Spark by coldcode
 • 2,090 points • 89,854 views
0 votes
1 answer

Minimizing Data Transfers in Spark

Jun 19, 2018 in Apache Spark by shams
 • 3,670 points • 1,588 views
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1 answer

How to find the number of elements present in the array in a Spark DataFame column?

Jun 6, 2018 in Apache Spark by code799
 • 22,793 views
0 votes
3 answers

Filtering a row in Spark DataFrame based on matching values from a list

Jun 6, 2018 in Apache Spark by code799
 • 93,189 views
0 votes
1 answer

Convert the given Spar rdd object to Spark DataFrame.

Jun 6, 2018 in Apache Spark by code799
 • 1,348 views
0 votes
1 answer

Different Spark Ecosystem

Jun 4, 2018 in Apache Spark by shams
 • 3,670 points • 1,047 views
0 votes
1 answer

How to import the dependencies of Spark MLlib into eclipse project?

May 31, 2018 in Apache Spark by hack236
 • 2,178 views
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1 answer

Spark Machine Learning pipeline works fine in Spark 1.6, but it gives error when executed on Spark 2.x?

May 31, 2018 in Apache Spark by hack236
 • 1,175 views
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1 answer

What is Spark Piping?

May 31, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 2,346 views
0 votes
1 answer

How to convert rdd object to dataframe in spark

May 30, 2018 in Apache Spark by Shubham
 • 13,490 points • 4,178 views
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3 answers

How to transpose Spark DataFrame?

May 24, 2018 in Apache Spark by anonymous
 • 20,400 views
0 votes
1 answer

Getting error while connecting zookeeper in Kafka - Spark Streaming integration

May 24, 2018 in Apache Spark by user-code
 • 2,994 views
0 votes
1 answer

How to set keys & access tokens for Twitter Spark streaming?

May 24, 2018 in Apache Spark by coder_jazz
 • 1,954 views
0 votes
2 answers

In a Spark DataFrame how can I flatten the struct?

May 24, 2018 in Apache Spark by code799
 • 6,398 views
0 votes
3 answers

How to connect Spark to a remote Hive server?

May 17, 2018 in Big Data Hadoop by code799
 • 13,194 views
+2 votes
4 answers

use length function in substring in spark

May 3, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 43,737 views
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