Trending questions in Apache Spark

0 votes
3 answers

I don't understand the reason behind Spark RDD being immutable.

There are few reasons for keeping RDD ...READ MORE

Apr 18, 2019 in Apache Spark by santlal561987@gmail.com
8,731 views
0 votes
1 answer

Doubt in display(id, name, salary) before display function

The statement display(id, name, salary) is written before the display function ...READ MORE

Jun 19, 2019 in Apache Spark by Ritu
189 views
0 votes
1 answer

Spark CLI issue

For spark.read.textFile we need spark-2.x. Please try ...READ MORE

Jun 19, 2019 in Apache Spark by Maahi
147 views
0 votes
1 answer

Difference between RDD as val and var

Variable declaration can be done in two ...READ MORE

May 23, 2019 in Apache Spark by Arun
1,234 views
0 votes
1 answer

what are the spark real time issues ?

Some of the issues I have faced ...READ MORE

Mar 18, 2019 in Apache Spark by Sharman
4,017 views
0 votes
1 answer

Changing Yarn queue in Spark application

To change the default queue to which ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
3,536 views
0 votes
1 answer

How to increase Spark listener bus event queue capacity?

The default capacity of listener bus is ...READ MORE

Mar 12, 2019 in Apache Spark by Raj
3,664 views
0 votes
1 answer

How to set extra JVM options for Spark application?

You cans set extra JVM options that ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
2,864 views
0 votes
1 answer

Starting Spark Scala console

To get command prompt for Scala open ...READ MORE

May 24, 2019 in Apache Spark by Cassy
265 views
0 votes
1 answer

Starting Spark in Windows

Run below commands spark-class org.apache.spark.deploy.master.Master spark-class org.apache.spark.deploy.worker.Worker spark://192.168.254.1:7077 NOTE: The ...READ MORE

May 22, 2019 in Apache Spark by Reshma
333 views
0 votes
1 answer

How to store files in executor's working directory?

You have to specify a comma-separated list ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
2,476 views
0 votes
1 answer

How to set cpu cores for spark task?

By default, each task is allocated with ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
3,030 views
0 votes
1 answer

Spark2-submit does not generate output file.

To generate the output file, you can ...READ MORE

Feb 24, 2019 in Apache Spark by Esha
3,495 views
0 votes
1 answer

How to change the location of Spark event logs?

You can change the location where you ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
2,613 views
0 votes
1 answer

How can we use spark shell for scala without cluster?

You can run the Spark shell for ...READ MORE

Apr 28, 2019 in Apache Spark by Giri
268 views
0 votes
1 answer

How to get Spark SQL configuration?

First create a Spark session like this: val ...READ MORE

Mar 18, 2019 in Apache Spark by John
1,921 views
0 votes
1 answer

What is Spark Core?

It is not like a CPU to ...READ MORE

Mar 8, 2019 in Apache Spark by Raj
2,226 views
0 votes
1 answer

SparkContext.addFile() not able to update file.

Spark by default won't let you overwrite ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
2,156 views
0 votes
1 answer

How to enable worker cleanup in Spark?

To enable cleanup, open the spark shell ...READ MORE

Mar 25, 2019 in Apache Spark by Hari
1,433 views
0 votes
1 answer

How to change commiter algorithm version in Spark?

To change to version 2, run the ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
1,980 views
0 votes
1 answer

What is Executor Memory in a Spark application?

Every spark application has same fixed heap ...READ MORE

Jan 5, 2019 in Apache Spark by Frankie
• 9,830 points
4,753 views
0 votes
1 answer

Set archives to be extracted in executor directory

I don't think you can copy and ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
1,124 views
0 votes
1 answer

Spark Yarn: Changing maximum number of time to submit application

By default, the maximum number of times ...READ MORE

Mar 28, 2019 in Apache Spark by Raj
1,067 views
0 votes
1 answer

Disable Web UI for Spark Application

You can disable it like this: val sc ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
1,941 views
0 votes
1 answer

How to use Spark jars for Yarn distribution?

First, store upload this archive to hdfs and ...READ MORE

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

How to enable Spark event logging?

To make Spark store the event logs, ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
1,876 views
0 votes
1 answer

Increase Yarn wait time for Sparkcontext

The default time that the Yarn application waits ...READ MORE

Mar 27, 2019 in Apache Spark by Rohit
988 views
0 votes
1 answer

what are the job optimization Technics in spark and scala ?

There are different methods to achieve optimization ...READ MORE

Mar 18, 2019 in Apache Spark by Veer
1,325 views
0 votes
1 answer

How to set executors for static allocation in Spark Yarn?

Open Spark shell and run the following ...READ MORE

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

Need help setting Spark yarn history server address

If you are running history server and ...READ MORE

Mar 27, 2019 in Apache Spark by Neha
906 views
0 votes
1 answer

How to change scheduling mode in Spark?

You can change the scheduling mode as ...READ MORE

Mar 12, 2019 in Apache Spark by Raj
1,552 views
0 votes
0 answers

what are the memory issues in spark ?

Mar 18, 2019 in Apache Spark by satish kumar
• 180 points
1,319 views
+1 vote
1 answer

map vs mapValues in Spark

There is a difference between the two: mapValues ...READ MORE

Jun 29, 2018 in Apache Spark by nitinrawat895
• 11,380 points
12,503 views
0 votes
1 answer

How to set keystore path?

You have to set the path to ...READ MORE

Mar 15, 2019 in Apache Spark by Karan
1,295 views
0 votes
1 answer

How to increase HDFS replication level in Spark?

Hi @Raunak. You can change the replication ...READ MORE

Mar 27, 2019 in Apache Spark by Yash
728 views
0 votes
1 answer

How to enable SSL for Spark application?

You can do it dynamically like this: val ...READ MORE

Mar 15, 2019 in Apache Spark by Karan
1,121 views
0 votes
1 answer

How to set max executors for dynamic allocation?

You can set it by assigning the ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
1,197 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
596 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
620 views
0 votes
1 answer

How to use ftp scheme using Yarn in Spark application?

In case Yarn does not support schemes ...READ MORE

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

How to make Spark wait for more time for acknowledgement?

Use the following command to increase the ...READ MORE

Mar 11, 2019 in Apache Spark by Raj
1,190 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
537 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
456 views
0 votes
1 answer

How to access private key password with Spark?

Spark allows you to retrieve the key ...READ MORE

Mar 15, 2019 in Apache Spark by Karan
993 views
0 votes
1 answer

How to authenticate Spark internal connections using a secret key?

You need to set the secret key ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
1,026 views
0 votes
1 answer

How to enable dynamic resource allocation in Spark?

To dynamically enable dynamic resource allocation, you ...READ MORE

Mar 12, 2019 in Apache Spark by veer
1,030 views
0 votes
1 answer

How to retain Spark jar and app jar after staging?

By default, Spark jar, app jar, and ...READ MORE

Mar 27, 2019 in Apache Spark by Ginni
375 views
0 votes
1 answer

Apache Spark, usage of yield.

Yield is used in sequence comprehensions. It is ...READ MORE

Feb 22, 2019 in Apache Spark by Saruj
1,797 views
0 votes
1 answer

Prevent immediate shutdown of Streaming context after JVM shutdown

In technical terms, you want to gracefully shut down the ...READ MORE

Mar 19, 2019 in Apache Spark by Jai
662 views
0 votes
1 answer

How to disable executor from fetching file from cache?

When a Spark application is running, the ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
1,046 views