Trending questions in Apache Spark

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Installing Spark on Ubuntu

Hey. Follow these steps to install Spark ...READ MORE

Feb 20, 2019 in Apache Spark by Omkar
 • 69,210 points • 1,592 views
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1 answer

Change number of threads use by R back end

Refer to the below commands to know ...READ MORE

Mar 19, 2019 in Apache Spark by Jai
 • 414 views
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1 answer

Network encryption for Spark

You can enable encryption for the Spark ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 662 views
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How many executors run when dynamic allocation is enabled?

The number of executors running by default ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 663 views
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Increasing retry before blacklisting executor

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

Mar 12, 2019 in Apache Spark by Raj
 • 739 views
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1 answer

How to prevent executor from self-destructing?

I think there is a timeout set ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
 • 700 views
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How to enable SASL encryption?

You can use dynamic configuration setting to ...READ MORE

Mar 14, 2019 in Apache Spark by Raj
 • 592 views
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Using R to display configuration of Spark SQL

Try the below-mentioned code. sparkR.session() properties <- sql("SET -v") showDF(properties, ...READ MORE

Mar 18, 2019 in Apache Spark by John
 • 414 views
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1 answer

How to set maximum receiving rate for backpressure mechanism?

You can set the maximum receiving rate ...READ MORE

Mar 18, 2019 in Apache Spark by John
 • 412 views
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1 answer

Not able to clone Hadoop configuration.

Run the following command in Spark shell ...READ MORE

Mar 10, 2019 in Apache Spark by Siri
 • 785 views
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1 answer

How to change default Spark dashboard port?

You can change it dynamically while using ...READ MORE

Mar 6, 2019 in Apache Spark by Rohit
 • 926 views
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Change heart beat time to R process

The heartbeat interval is assigned to the ...READ MORE

Mar 19, 2019 in Apache Spark by Jai
 • 364 views
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1 answer

Is it better to have one large parquet file or lots of smaller parquet files?

Ideally, you would use snappy compression (default) ...READ MORE

May 23, 2018 in Apache Spark by nitinrawat895
 • 11,380 points • 13,325 views
0 votes
1 answer

Setting port for SSL for Spark application

You can set the port in the ...READ MORE

Mar 15, 2019 in Apache Spark by Karan
 • 533 views
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1 answer

Sliding function in spark

The sliding function is used when you ...READ MORE

Jan 29, 2019 in Apache Spark by Omkar
 • 69,210 points • 2,473 views
0 votes
1 answer

How to save and retrieve the Spark RDD from HDFS?

You can save the RDD using saveAsObjectFile and saveAsTextFile method. ...READ MORE

May 29, 2018 in Apache Spark by Shubham
 • 13,490 points • 13,053 views
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1 answer

How to monitor interrupted Spark tasks?

To enable monitoring interrupted tasks, run the following ...READ MORE

Mar 12, 2019 in Apache Spark by Veer
 • 610 views
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1 answer

How to restrict a group to only view in Spark?

You can do it dynamically be setting ...READ MORE

Mar 15, 2019 in Apache Spark by Raj
 • 461 views
0 votes
1 answer

How to change encryption key value for local I/O?

There another property where you can set ...READ MORE

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

Spark logs not overwriting

Spark does not allow you to overwrite ...READ MORE

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

Configuring location of credential provider

To configure the location of the credential ...READ MORE

Mar 15, 2019 in Apache Spark by Karan
 • 425 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
 • 408 views
0 votes
1 answer

How to limit the cores being used by a cluster?

You can set the maximum number of ...READ MORE

Mar 11, 2019 in Apache Spark by Raj
 • 574 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
 • 479 views
0 votes
1 answer

Not able to preserve shuffle files in Spark

You lose the files because by default, ...READ MORE

Feb 24, 2019 in Apache Spark by Rana
 • 1,244 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
 • 413 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
 • 630 views
0 votes
1 answer

Log every block update in Spark

By default, Spark does not log all ...READ MORE

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

Loading Spark properties dynamically

First, create an empty conf using this ...READ MORE

Feb 22, 2019 in Apache Spark by Mansoor
 • 1,265 views
0 votes
1 answer

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
 • 436 views
0 votes
1 answer

Spark context (sc) not found

Maybe the hadoop service didn't start properly. Try ...READ MORE

Feb 14, 2019 in Apache Spark by John
 • 1,628 views
0 votes
1 answer

Authenticate internal connections in Spark

To make Spark authenticate internal connections, you ...READ MORE

Mar 13, 2019 in Apache Spark by Venu
 • 414 views
0 votes
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
 • 348 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
 • 392 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
 • 430 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
 • 525 views
0 votes
1 answer

Multidimensional Array in Scala

Multidimensional array is an array which store ...READ MORE

Feb 11, 2019 in Apache Spark by Omkar
 • 69,210 points • 1,658 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
 • 339 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
 • 380 views
0 votes
1 answer

Error reading avro dataset in spark

For avro, you need to download and ...READ MORE

Feb 4, 2019 in Apache Spark by Omkar
 • 69,210 points • 1,927 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
 • 402 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
 • 461 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
 • 384 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
 • 540 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
 • 461 views
0 votes
1 answer

How to increase the amount of data to be transferred to shuffle service at the same time?

The amount of data to be transferred ...READ MORE

Mar 1, 2019 in Apache Spark by Omkar
 • 69,210 points • 718 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
 • 355 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
 • 462 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
 • 458 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
 • 428 views
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