Recent questions tagged spark

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Hadoop mandatory for Spark?

Jun 1, 2018 in Apache Spark by shams
 • 3,660 points • 271 views
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1 answer

How does partitioning work in Spark?

May 31, 2018 in Apache Spark by coldcode
 • 2,080 points • 533 views
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1 answer

What is Spark Piping?

May 31, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 1,538 views
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1 answer

Akka in Spark

May 31, 2018 in Apache Spark by kurt_cobain
 • 9,390 points • 1,475 views
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1 answer

Is there any way to uncache RDD?

May 30, 2018 in Apache Spark by kurt_cobain
 • 9,390 points • 963 views
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1 answer

What are the parameters in local[a,b,c] explains?

May 29, 2018 in Apache Spark by code799
 • 358 views
0 votes
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How to save and retrieve the Spark RDD from HDFS?

May 29, 2018 in Apache Spark by code799
 • 11,018 views
0 votes
1 answer

Is it possible to run Spark and Mesos along with Hadoop?

May 29, 2018 in Apache Spark by shams
 • 3,660 points • 401 views
0 votes
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What is Sliding Window?

May 28, 2018 in Apache Spark by shams
 • 3,660 points • 1,682 views
0 votes
1 answer

Spark 2.3? What is new in it?

May 28, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 372 views
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1 answer

What is the difference between Apache Spark SQLContext vs HiveContext?

May 26, 2018 in Apache Spark by Shubham
 • 13,490 points • 3,888 views
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1 answer

How to find max value in pair RDD?

May 26, 2018 in Apache Spark by kurt_cobain
 • 9,390 points • 6,950 views
+1 vote
1 answer

Can anyone explain what is RDD in Spark?

May 24, 2018 in Apache Spark by coder_jazz
 • 1,781 views
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1 answer

What's the difference between 'filter' and 'where' in Spark SQL?

May 23, 2018 in Apache Spark by kurt_cobain
 • 9,390 points • 28,863 views
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1 answer

Why does sortBy transformation trigger a Spark job?

May 8, 2018 in Apache Spark by shams
 • 3,660 points • 916 views
0 votes
1 answer

How to get the number of elements in partition?

May 8, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 1,316 views
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How is Apache Spark different from the Hadoop approach?

May 7, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 571 views
0 votes
1 answer

start-master and start-all?

May 7, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 1,495 views
0 votes
1 answer

cache tables in apache spark sql

May 4, 2018 in Apache Spark by shams
 • 3,660 points • 2,454 views
0 votes
1 answer

Spark Monitoring with Ganglia

May 4, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 888 views
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1 answer

Spark cannot access local file anymore?

May 3, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 624 views
0 votes
1 answer

Can I read a CSV represented as a string into Apache Spark?

May 3, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 1,337 views
0 votes
1 answer

Why is collect in SparkR slow?

May 3, 2018 in Apache Spark by shams
 • 3,660 points • 1,551 views
0 votes
1 answer

When not to use foreachPartition and mapPartition?

Apr 30, 2018 in Apache Spark by shams
 • 3,660 points • 6,095 views
0 votes
1 answer

Why is Spark faster than Hadoop Map Reduce

Apr 30, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 799 views
+5 votes
11 answers

Concatenate columns in apache spark dataframe

Apr 26, 2018 in Apache Spark by Shubham
 • 13,490 points • 68,313 views
0 votes
1 answer

How to get Spark dataset metadata?

Apr 26, 2018 in Apache Spark by Ashish
 • 2,650 points • 3,546 views
0 votes
2 answers

Difference between createOrReplaceTempView and registerTempTable

Apr 25, 2018 in Apache Spark by Ashish
 • 2,650 points • 11,231 views
0 votes
1 answer

Spark Kill Running Application

Apr 25, 2018 in Apache Spark by Ashish
 • 2,650 points • 1,068 views
+1 vote
2 answers

Apache Spark vs Apache Spark 2

Apr 24, 2018 in Apache Spark by Ashish
 • 2,650 points • 7,759 views
0 votes
1 answer

How to stop messages from being displayed on spark console?

Apr 24, 2018 in Apache Spark by Ashish
 • 2,650 points • 4,368 views
0 votes
1 answer

Efficient way to read specific columns from parquet file in spark

Apr 20, 2018 in Apache Spark by Ashish
 • 2,650 points • 5,903 views
0 votes
1 answer

reduceByKey or reduceByKeyLocally , which should be preferred ?

Apr 20, 2018 in Apache Spark by Ashish
 • 2,650 points • 1,545 views
0 votes
1 answer

Which query to use for better performance, join in SQL or using Dataset API?

Apr 19, 2018 in Apache Spark by Ashish
 • 2,650 points • 1,053 views
0 votes
1 answer

Is there any way to check the Spark version?

Apr 19, 2018 in Apache Spark by Shubham
 • 13,490 points • 6,824 views
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