Most viewed questions in Apache Spark

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How do I access the Map Task ID in Spark?

You can access task information using TaskContext: import org.apache.spark.TaskContext sc.parallelize(Seq[Int](), ...READ MORE

Jul 23, 2019 in Apache Spark by ravikiran
• 4,620 points
1,205 views
0 votes
1 answer

What is “Unit” and “()” in Scala?

Hey, Unit is a subtype of scala.anyval and ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
• 65,910 points
1,200 views
0 votes
1 answer

What makes Spark faster than MapReduce?

Let's first look at mapper side differences Map ...READ MORE

Jul 27, 2018 in Apache Spark by Neha
• 6,300 points
1,200 views
0 votes
1 answer

Do real-time data processing is possible with Spark SQL?

Hey, Real-time data processing is not possible directly ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
• 65,910 points
1,198 views
0 votes
1 answer

Pyspark is taking default path

The HDFS path for MyLab is /user/edureka_id. ...READ MORE

Jul 16, 2019 in Apache Spark by Khushi
1,195 views
0 votes
1 answer

Remove idle executor automatically

Yes, it is possible and is already ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
1,194 views
0 votes
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How to create RDD from existing RDD in scala?

scala> val rdd1 = sc.parallelize(List(1,2,3,4,5))                           -  Creating ...READ MORE

Feb 29, 2020 in Apache Spark by anonymous
1,185 views
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How RDD persist the data in Spark?

There are two methods to persist the ...READ MORE

Jun 18, 2018 in Apache Spark by nitinrawat895
• 11,380 points
1,177 views
0 votes
1 answer

Does spark streaming provides checkpoint?

Hi@akhtar, Yes, Spark streaming uses checkpoint. Checkpoint is ...READ MORE

Feb 4, 2020 in Apache Spark by MD
• 95,440 points
1,155 views
0 votes
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Client connection getting rejected due to SASL authentication

Seems like you have set the configuration ...READ MORE

Mar 14, 2019 in Apache Spark by Raj
1,137 views
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1 answer

Which one of the following commands is used to start python-spark?

Hi@ritu, To start your python spark shell, you ...READ MORE

Nov 26, 2020 in Apache Spark by MD
• 95,440 points
1,136 views
0 votes
1 answer

Spark streaming with Kafka dependency error

Your error is with the version of ...READ MORE

Jul 5, 2018 in Apache Spark by Shubham
• 13,490 points
1,136 views
0 votes
1 answer

Minimizing Data Transfers in Spark

Minimizing data transfers and avoiding shuffling helps ...READ MORE

Jun 19, 2018 in Apache Spark by Data_Nerd
• 2,390 points
1,136 views
0 votes
1 answer

I am not able to run the apache spark program in mac oc

Hi@Srinath, It seems you didn't set Hadoop for ...READ MORE

Sep 21, 2020 in Apache Spark by MD
• 95,440 points
1,132 views
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How to handle data shuffle in Spark

Hi, You can do it using map partition ...READ MORE

Aug 6, 2019 in Apache Spark by Gitika
• 65,910 points
1,132 views
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What is RDD in Apache spark?

Hi, RDD in spark stands for REsilient distributed ...READ MORE

Jul 1, 2019 in Apache Spark by Gitika
• 65,910 points
1,132 views
0 votes
1 answer

How to concatinating Arrays in scala?

Hey, We can append a Scala array to ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,910 points
1,127 views
0 votes
1 answer

where can i get spark-terasort.jar and not .scala file, to do spark terasort in windows.

Hi! I found 2 links on github where ...READ MORE

Feb 13, 2019 in Apache Spark by Omkar
• 69,210 points
1,125 views
0 votes
1 answer

In AWS, if user wants to run spark, then on top of which one of the following can the user do it?

Hi@ritu, AWS has lots of services. For spark ...READ MORE

Nov 26, 2020 in Apache Spark by MD
• 95,440 points
1,120 views
0 votes
1 answer

Why is Spark faster than Hadoop Map Reduce

Firstly, it's the In-memory computation, if the file ...READ MORE

Apr 30, 2018 in Apache Spark by shams
• 3,670 points
1,106 views
0 votes
1 answer

How to connect to Zookeeper after setting Spark recovery mode?

You have set Zookeeper as the recovery ...READ MORE

Mar 25, 2019 in Apache Spark by Hari
1,099 views
0 votes
1 answer

Unable to run the java- spark standalone program

Though there is nothing wrong with the ...READ MORE

Jul 30, 2019 in Apache Spark by Lohit
1,096 views
0 votes
1 answer

Increasing memory to use for Yarn application master?

You can increase the memory dynamically by ...READ MORE

Mar 26, 2019 in Apache Spark by Tina
1,094 views
0 votes
0 answers

When we create an RDD, does it bring the data and load it into the memory?

Can anyone suggest when we create an ...READ MORE

Jul 3, 2019 in Apache Spark by monalisa

recategorized Jul 4, 2019 by Gitika 1,090 views
0 votes
1 answer

Primary keys in Apache Spark

I found the following solution to be ...READ MORE

Sep 11, 2019 in Apache Spark by ravikiran
• 4,620 points
1,088 views
0 votes
1 answer

What is Lazy evaluated in Spark?

Hi, If you execute a bunch of programs, ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
• 65,910 points
1,088 views
0 votes
1 answer

What will be printed when the below code is executed ?

Option a) List(5,100,10) The take method returns the first n elements in an ...READ MORE

Nov 26, 2020 in Apache Spark by Gitika
• 65,910 points
1,084 views
0 votes
1 answer

Scala: when to use x(2) and x._2?

In the above statement, x(2) is specifying an array ...READ MORE

Jul 22, 2019 in Apache Spark by Yogi
1,078 views
0 votes
1 answer

What is a Parquet file in Spark?

Hey, Parquet is a columnar format file supported ...READ MORE

Jul 2, 2019 in Apache Spark by Gitika
• 65,910 points
1,076 views
+1 vote
1 answer

Need to load 40 GB data to elasticsearch using spark

Did you find any documents or example ...READ MORE

Nov 5, 2019 in Apache Spark by Begum
1,067 views
0 votes
1 answer

Spark Monitoring with Ganglia

Ganglia looks like a good option for ...READ MORE

May 4, 2018 in Apache Spark by kurt_cobain
• 9,390 points
1,063 views
0 votes
1 answer

Ranger KMS - Curl command

Hi@Shllpa, In general, we get the 401 status code ...READ MORE

Sep 29, 2020 in Apache Spark by MD
• 95,440 points
1,052 views
0 votes
1 answer

What is the differentiate between equals() and == in Scala. Is the latter the same as == in Java?

Hey, When we try to compare two instances ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
• 65,910 points
1,029 views
0 votes
1 answer

How to calculate the result of formula with Scala?

Hi, You can use a simple mathematical calculation ...READ MORE

Jul 1, 2019 in Apache Spark by Gitika
• 65,910 points
999 views
0 votes
1 answer

Thread to use Yarn application master is limited

This is because the maximum number of ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
997 views
0 votes
1 answer

Changing the blacklist time of executor

By default, the node or executor is ...READ MORE

Mar 12, 2019 in Apache Spark by Raj
997 views
0 votes
1 answer

Is 'sparkline' a method?

I suggest you to check 2 things That jquery.sparkline.js is actually ...READ MORE

Nov 9, 2018 in Apache Spark by Frankie
• 9,830 points
986 views
0 votes
1 answer

What is Lazy val in Scala?

Hey, Scala executes a val when we define ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
• 65,910 points
974 views
0 votes
1 answer

How is Apache Spark different from the Hadoop approach?

In Hadoop MapReduce the input data is ...READ MORE

May 7, 2018 in Apache Spark by BD Master
969 views
0 votes
1 answer

How to automatically kill executors on blacklisting?

You can set the property to directly ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
968 views
0 votes
1 answer

Increase cores for yarn in Spark application

By default, only one core is used for ...READ MORE

Mar 26, 2019 in Apache Spark by Bhuvan
966 views
0 votes
1 answer

how can I get all executors' pending jobs and stages of particular sparksession?

Hi@Neha, You can find all the job status ...READ MORE

Aug 19, 2020 in Apache Spark by MD
• 95,440 points
960 views
0 votes
1 answer

What does the below code print?

Option d) Run time error. READ MORE

Nov 25, 2020 in Apache Spark by Gitika
• 65,910 points
959 views
0 votes
1 answer

How to get SQL configuration in Spark using Python?

You can get the configuration details through ...READ MORE

Mar 18, 2019 in Apache Spark by John
958 views
0 votes
1 answer

Code to compute average in Apache Spark?

Hi, You can compute the average using this ...READ MORE

Jul 22, 2019 in Apache Spark by Gitika
• 65,910 points
956 views
+2 votes
1 answer

Spark code takes too much time to run on cluster

Hi @asif, Share with us please the application ...READ MORE

Jan 22, 2020 in Apache Spark by Alexandru
• 510 points
954 views
0 votes
1 answer

How does partitioning work in Spark?

By default a partition is created for ...READ MORE

May 31, 2018 in Apache Spark by nitinrawat895
• 11,380 points
938 views
0 votes
1 answer

When is speculation enabled in Spark?

Speculation is enabled when a fraction of ...READ MORE

Mar 12, 2019 in Apache Spark by veer
931 views
0 votes
1 answer

How to increase Spark memory for execution?

Probably the spill is because you have ...READ MORE

Mar 7, 2019 in Apache Spark by Pavitra

edited Mar 8, 2019 931 views
0 votes
1 answer

Different types of identifiers in Scala?

Hey, We have four kinds of identifiers in ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
• 65,910 points
928 views