Recent questions tagged big-data

0 votes
1 answer

Relation between LOAD operation and LOCAL keyword?

May 15, 2019 in Big Data Hadoop by asima
 • 1,622 views
0 votes
1 answer

What is DML in Hive?

May 15, 2019 in Big Data Hadoop by asim
 • 1,712 views
0 votes
1 answer

Help me out to download hadoop of a specific version

May 15, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,319 views
+1 vote
1 answer

Explain to me the difference between Name node and Secondary name node

May 15, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,503 views
0 votes
1 answer

Error: Execution Error, Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask. Permission denied:

May 15, 2019 in Big Data Hadoop by diana
 • 7,547 views
0 votes
1 answer

What is the command to know the details of your data created in a table in Hive?

May 15, 2019 in Big Data Hadoop by rashmi
 • 3,101 views
0 votes
1 answer

How to see the content of a table in hive?

May 15, 2019 in Big Data Hadoop by amrita
 • 6,789 views
0 votes
2 answers

How to change the location of a table in hive?

May 14, 2019 in Big Data Hadoop by sunny
 • 11,972 views
0 votes
1 answer

What is SerDe in Hive?

May 14, 2019 in Big Data Hadoop by sunny
 • 3,758 views
0 votes
1 answer

Error: ParseException line 1:103 mismatched input 't' expecting StringLiteral near 'by' in table row format's field separator

May 13, 2019 by rashmi
 • 2,562 views
0 votes
1 answer

Error: schemaTool failed

May 13, 2019 in Big Data Hadoop by anonymous
 • 5,906 views
0 votes
1 answer

How to create a file in Linux from terminal window?

May 13, 2019 in Big Data Hadoop by sunny
 • 1,943 views
0 votes
1 answer

Error is not recoverable: exiting now

May 13, 2019 in Big Data Hadoop by amrita
 • 2,025 views
0 votes
1 answer

What are the modes of Hive metastore?

May 13, 2019 in Big Data Hadoop by rashmi
 • 5,235 views
0 votes
1 answer

How does Hive job execution flow works?

May 13, 2019 in Big Data Hadoop by disha
 • 4,756 views
0 votes
1 answer

What is thrift in Hive?

May 13, 2019 in Big Data Hadoop by amrita
 • 8,481 views
0 votes
1 answer

Why for metastore RDBMS is used?

May 11, 2019 in Big Data Hadoop by sunny
 • 3,167 views
0 votes
1 answer

What are the components of Driver in Hive?

May 11, 2019 in Big Data Hadoop by disha
 • 2,066 views
0 votes
1 answer

What is DAG in Hive?

May 11, 2019 in Big Data Hadoop by dyna
 • 5,746 views
0 votes
1 answer

What is the need of driver in Hive architecture?

May 10, 2019 by amrita
 • 1,032 views
0 votes
1 answer

What is metastore in Hive architecture?

May 10, 2019 in Big Data Hadoop by asim
 • 2,508 views
0 votes
1 answer

Explain to me the Elasticsearch and Hadoop in a much better manner

May 10, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,766 views
0 votes
1 answer

Can I install and work with Hadoop on Amazon Web Services with a free trial?

May 10, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,095 views
+2 votes
1 answer

windows 10 C:\Users\mk>hadoop -version output:- Error: Could not find or load main class P.

May 10, 2019 in Big Data Hadoop by anonymous
 • 4,406 views
0 votes
1 answer

Is there any hdfs dfs command to restrict number of files to be created in a directory ?

May 4, 2019 in Big Data Hadoop by vicky
 • 4,006 views
0 votes
1 answer

How to find the number of null contain in dataframe?

May 3, 2019 in Apache Spark by anonymous
 • 120 points • 7,090 views
+1 vote
2 answers

How do I get number of columns in each line from a delimited file??

Mar 8, 2019 in Apache Spark by Vijay Dixon
 • 190 points • 8,407 views
0 votes
3 answers

Skills required to become a Data Architect

Jan 8, 2019 in Career Counselling by Ali
 • 11,360 points • 2,637 views
0 votes
3 answers

What is the average Data architect salary?

Jan 8, 2019 in Career Counselling by Ali
 • 11,360 points • 2,648 views
0 votes
1 answer

What is Metastore in Hive?

Dec 20, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,583 views
0 votes
1 answer

What is local file System?

Dec 11, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,567 views
0 votes
1 answer

How to move Word and PDF documents to Hadoop HDFS?

Dec 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,468 views
0 votes
1 answer

Differentiate: hadoop fs -text vs hadoop fs -cat vs hadoop fs -get

Dec 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 5,580 views
0 votes
1 answer

How to get absolute path of files in a directory in Hadoop?

Dec 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 6,394 views
0 votes
0 answers

Is the Hadoop scalability linear or proportional to number of nodes?

Nov 27, 2018 in Big Data Hadoop by Jins
 • 140 points • 1,999 views
0 votes
1 answer

Connect AWS Athena to an existing Hive Metastore

Nov 16, 2018 in AWS by findingbugs
 • 3,260 points • 3,396 views
0 votes
1 answer

Hadoop: `.' no such file or directory while installing

Nov 2, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 3,051 views
+1 vote
2 answers

How can I convert Spark Dataframe to Spark RDD?

Jul 4, 2018 in Apache Spark by code799
 • 23,315 views
0 votes
3 answers

Sorting rows in descending order in Spark SQL

Jul 4, 2018 in Apache Spark by code799
 • 18,972 views
+2 votes
14 answers

How to create new column with function in Spark Dataframe?

Jun 26, 2018 in Apache Spark by coldcode
 • 2,090 points • 100,770 views
0 votes
1 answer

Minimizing Data Transfers in Spark

Jun 19, 2018 in Apache Spark by shams
 • 3,670 points • 3,246 views
0 votes
1 answer

How to find the number of elements present in the array in a Spark DataFame column?

Jun 6, 2018 in Apache Spark by code799
 • 24,728 views
0 votes
3 answers

Filtering a row in Spark DataFrame based on matching values from a list

Jun 6, 2018 in Apache Spark by code799
 • 96,071 views
0 votes
1 answer

Convert the given Spar rdd object to Spark DataFrame.

Jun 6, 2018 in Apache Spark by code799
 • 2,491 views
0 votes
1 answer

Different Spark Ecosystem

Jun 4, 2018 in Apache Spark by shams
 • 3,670 points • 2,487 views
0 votes
1 answer

What is Spark Piping?

May 31, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 3,517 views
0 votes
1 answer

How to convert rdd object to dataframe in spark

May 30, 2018 in Apache Spark by Shubham
 • 13,490 points • 5,858 views
0 votes
3 answers

How to transpose Spark DataFrame?

May 24, 2018 in Apache Spark by anonymous
 • 23,036 views
0 votes
3 answers

How to connect Spark to a remote Hive server?

May 17, 2018 in Big Data Hadoop by code799
 • 15,559 views
+2 votes
4 answers

use length function in substring in spark

May 3, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 48,116 views
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