Trending questions in Apache Spark

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Dynamic allocation: Set minimum number of executor

You cans et it dynamically like this:  val ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 1,569 views
0 votes
1 answer

How to make driver update metrics quickly to executor?

There's a heartbeat signal sent to the ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
 • 1,723 views
0 votes
1 answer

Change encryption key length fro Spark application

You can do this by running the ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 1,559 views
0 votes
1 answer

How to give modify access to group?

You can do this using the following ...READ MORE

Mar 15, 2019 in Apache Spark by Vikas
 • 1,475 views
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1 answer

Enable encryption for local Input and Output

You can enable local I/O encryption like ...READ MORE

Mar 14, 2019 in Apache Spark by Raj
 • 1,510 views
0 votes
1 answer

How to disable broadcast checksum?

Run the following in the Spark shell: val ...READ MORE

Mar 9, 2019 in Apache Spark by Siri
 • 1,707 views
0 votes
1 answer

How to add modify access for Web UI user?

For a user to have modification access ...READ MORE

Mar 14, 2019 in Apache Spark by Raj
 • 1,476 views
0 votes
1 answer

How to relaunch tasks that are running slowly?

The technical term for what you want ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
 • 1,546 views
0 votes
1 answer

How to disable existing directory check?

To disable this, run the below commands: val ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
 • 1,586 views
0 votes
1 answer

Invalid syntax in spark

There's a problem with your syntax. There ...READ MORE

Jan 31, 2019 in Apache Spark by Omkar
 • 69,180 points • 3,189 views
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2 answers

How to use RDD filter with other function?

val x = sc.parallelize(1 to 10, 2)   // ...READ MORE

Aug 17, 2018 in Apache Spark by zombie
 • 3,790 points • 11,302 views
0 votes
1 answer

Prevent jobs to be killed from Web UI

You need to be careful with this. ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
 • 1,699 views
0 votes
1 answer

Spark shuffle service port number

The default port that shuffle service runs ...READ MORE

Mar 1, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,903 views
0 votes
1 answer

What port the Spark dashboard run on?

Spark dashboard by default runs on port ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
 • 1,650 views
0 votes
1 answer

Spark event log location

Unless and until you have not changed ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
 • 1,646 views
0 votes
1 answer

Key Factor Algorithms used for encryption.

The default key factor algorithm used is PBKDF2WithHmacSHA1. You ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 1,335 views
0 votes
1 answer

How to delay live entity updates on Spark ?

You can do this by increasing the ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
 • 1,615 views
0 votes
1 answer

Delay requesting new executor in dynamic allocation

You can set the duration like this: val ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 1,303 views
0 votes
1 answer

How to increase wait time to launch data-local task?

You can increase the locality wait time ...READ MORE

Mar 11, 2019 in Apache Spark by Raj
 • 1,386 views
0 votes
1 answer

Components of Spark

Spark core: The base engine that offers ...READ MORE

Mar 8, 2019 in Apache Spark by Raj
 • 1,521 views
0 votes
1 answer

How to set time for task speculation?

By default, the check for task speculation ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
 • 1,341 views
0 votes
1 answer

Increasing retry before blacklisting a node

You can do it dynamically using the ...READ MORE

Mar 12, 2019 in Apache Spark by Raj
 • 1,372 views
0 votes
1 answer

Changing Column position in spark dataframe

Yes, you can reorder the dataframe elements. You need ...READ MORE

Apr 19, 2018 in Apache Spark by Ashish
 • 2,650 points • 15,462 views
0 votes
1 answer

Changing port for Block Managers

By default, the port of which the ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
 • 1,432 views
0 votes
1 answer

Unresolved dependency issue on sbt package command

Check if you are able to access ...READ MORE

Jan 3, 2019 in Apache Spark by Omkar
 • 69,180 points • 4,243 views
0 votes
1 answer

Why is Spark map output compressed?

Spark thinks that it is a good ...READ MORE

Feb 24, 2019 in Apache Spark by Wasim
 • 2,021 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
 • 69,180 points • 2,332 views
+1 vote
1 answer

Spark interview

Preparing for an interview? We have something ...READ MORE

Feb 7, 2019 in Apache Spark by Edureka
 • 2,960 points • 1,987 views
0 votes
1 answer

Languages supported by Apache Spark?

Apache Spark supports the following four languages:  Scala, ...READ MORE

Sep 3, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 8,641 views
0 votes
1 answer

Error using double map.

You have forgotten to mention the case ...READ MORE

Feb 11, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,656 views
0 votes
1 answer

Error while using Spark SQL filter API

You have to use "===" instead of ...READ MORE

Feb 4, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,687 views
0 votes
1 answer

Query regarding a spark split logic

First, import the data in Spark and ...READ MORE

Feb 9, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,361 views
–1 vote
1 answer

Not able to use sc in spark shell

Seems like master and worker are not ...READ MORE

Jan 3, 2019 in Apache Spark by Omkar
 • 69,180 points • 2,948 views
0 votes
1 answer

How to get ID of a map task in Spark?

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

Nov 20, 2018 in Apache Spark by Frankie
 • 9,830 points • 4,652 views
0 votes
1 answer

How to add third party java jars for use in PySpark?

You can add external jars as arguments ...READ MORE

Jul 4, 2018 in Apache Spark by nitinrawat895
 • 11,380 points
edited Nov 19, 2021 by Sarfaraz • 10,176 views
–1 vote
1 answer

Deciding number of spark context objects

How many spark context objects you should ...READ MORE

Jan 16, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,695 views
0 votes
1 answer

Is there an API for implementing graphs in Spark?

GraphX is the Spark API for graphs and ...READ MORE

Jan 5, 2019 in Apache Spark by Frankie
 • 9,830 points • 1,820 views
0 votes
1 answer

Spark and Scale Auxiliary constructor doubt

println("Slayer") is an anonymous block and gets ...READ MORE

Jan 8, 2019 in Apache Spark by Omkar
 • 69,180 points • 1,603 views
+1 vote
2 answers

Apache Spark vs Apache Spark 2

Spark 2 doesn't differ much architecture-wise from ...READ MORE

Apr 24, 2018 in Apache Spark by kurt_cobain
 • 9,350 points • 11,356 views
0 votes
1 answer

How to open/stream .zip files through Spark?

You can try and check this below ...READ MORE

Nov 20, 2018 in Apache Spark by Frankie
 • 9,830 points • 3,586 views
0 votes
1 answer

Filter, Option or FlatMap in spark

If, for option 2, you mean have ...READ MORE

Nov 9, 2018 in Apache Spark by Frankie
 • 9,830 points • 3,842 views
+1 vote
1 answer

How can I write a text file in HDFS not from an RDD, in Spark program?

Yes, you can go ahead and write ...READ MORE

May 29, 2018 in Apache Spark by Shubham
 • 13,490 points • 10,430 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 • 2,689 views
0 votes
1 answer

How can I minimize data transfers when working with Spark?

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

Sep 19, 2018 in Apache Spark by zombie
 • 3,790 points • 4,600 views
0 votes
1 answer

Is there any way to check the Spark version?

There are 2 ways to check the ...READ MORE

Apr 19, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 11,036 views
0 votes
1 answer

How to find max value in pair RDD?

Use Array.maxBy method: val a = Array(("a",1), ("b",2), ...READ MORE

May 26, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 9,386 views
+1 vote
2 answers

Hadoop 3 compatibility with older versions of Hive, Pig, Sqoop and Spark

Hadoop 3 is not widely used in ...READ MORE

Apr 20, 2018 in Apache Spark by kurt_cobain
 • 9,350 points • 8,473 views
0 votes
1 answer

What are the levels of parallelism in spark streaming ?

> In order to reduce the processing ...READ MORE

Jul 27, 2018 in Apache Spark by zombie
 • 3,790 points • 6,441 views
0 votes
1 answer

When running Spark on Yarn, do I need to install Spark on all nodes of Yarn Cluster?

No, it is not necessary to install ...READ MORE

Jun 14, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 8,234 views
0 votes
1 answer

Difference between sparkContext, JavaSparkContext, SQLContext, & SparkSession?

Yes, there is a difference between the ...READ MORE

Jul 4, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 6,655 views
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