Recent questions tagged hadoop

0 votes
1 answer

How to run mapreduce program in terminal?

Jan 31, 2019 in Big Data Hadoop by Kavi
 • 15,387 views
0 votes
1 answer

Can we make hadoop cluster in AWS?

Jan 31, 2019 in AWS by Sneha
 • 1,564 views
0 votes
1 answer

Getting error while loading data into hive table

Jan 31, 2019 in Big Data Hadoop by Juvi
 • 5,588 views
0 votes
1 answer

Sqoop import where clause problem

Jan 31, 2019 in Big Data Hadoop by Ismal
 • 3,127 views
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1 answer

How will you submit job as particular user?

Jan 31, 2019 in Big Data Hadoop by Amulya
 • 2,202 views
0 votes
1 answer

How to decide number of mappers?

Jan 31, 2019 in Big Data Hadoop by Raksha
 • 5,699 views
0 votes
1 answer

java.lang.NoSuchMethodError: org.apache.hadoop.fs.FSOutputSummer

Jan 29, 2019 in Big Data Hadoop by Likitha
 • 4,715 views
0 votes
1 answer

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Jan 29, 2019 in Big Data Hadoop by Suraj
 • 3,309 views
0 votes
3 answers

Sqoop: java.lang.RuntimeException: Could not load db driver class: com.mysql.jdbc.Driver

Jan 29, 2019 in Big Data Hadoop by Veronica
 • 9,524 views
0 votes
1 answer

Not able to list tables in sqoop

Jan 29, 2019 in Big Data Hadoop by Rajat
 • 2,301 views
0 votes
1 answer

How to create a parquet table in hive and store data in it from a hive table?

Jan 28, 2019 in Big Data Hadoop by Param
 • 20,406 views
0 votes
1 answer

Can't access hadoop job logs

Jan 28, 2019 in Big Data Hadoop by neeraj
 • 2,458 views
0 votes
1 answer

How to list files in hdfs that contains a specific string?

Jan 27, 2019 in Big Data Hadoop by Krishna
 • 13,606 views
0 votes
1 answer

Update hdfs data before stroring in MySql

Jan 27, 2019 in Big Data Hadoop by Shubhash
 • 1,933 views
0 votes
1 answer

Browse HDFS & Job Logs

Jan 25, 2019 in Big Data Hadoop by Cassy
 • 2,711 views
0 votes
1 answer

expected org.apache.hadoop.io.IntWritable, received org.apache.hadoop.io.LongWritable

Jan 25, 2019 in Big Data Hadoop by George
 • 2,726 views
0 votes
1 answer

Unable to instantiate org.apache.hadoop.hive

Jan 25, 2019 in Big Data Hadoop by Faisal
 • 2,873 views
0 votes
1 answer

Permission denied while uploading files to hdfs

Jan 25, 2019 in Big Data Hadoop by K Mishra
 • 3,025 views
0 votes
1 answer

How to send curl downloaded data in hdfs?

Jan 25, 2019 in Big Data Hadoop by Prateek
 • 2,892 views
0 votes
1 answer

How to copy file to multiple hdfs directory?

Jan 25, 2019 in Big Data Hadoop by Rusva
 • 6,013 views
0 votes
1 answer

How to create files in hdfs?

Jan 25, 2019 in Big Data Hadoop by Sanam
 • 2,559 views
0 votes
1 answer

How to find the port on which hdfs is running?

Jan 25, 2019 in Big Data Hadoop by Tamanna
 • 5,493 views
0 votes
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I have a file uploaded through ftp. Next I want to upload it to local file system in hadoop

Jan 24, 2019 in Big Data Hadoop by Mohan
 • 140 points • 2,582 views
0 votes
1 answer

Hadoop installation issue on fedora 24

Jan 24, 2019 in Big Data Hadoop by Neha
 • 6,300 points • 1,981 views
0 votes
1 answer

[edureka_159609@ip-20-0-41-190 bin]$ hdfs dfs -mkdir ://localhost:9000/Pig_Data -mkdir: java.net.URISyntaxException: Expected scheme name at index 0: ://localhost:9000/Pig_Data

Jan 23, 2019 in Big Data Hadoop by Mohan
 • 140 points • 2,643 views
–1 vote
1 answer

Does Hadoop merge the output files after reduce phase?

Jan 23, 2019 in Big Data Hadoop by digger
 • 26,740 points • 2,629 views
0 votes
1 answer

Why is using Combiner function not preferred in shuffling?

Jan 23, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 1,726 views
0 votes
1 answer

How to reduce shuffling cost in map reduce?

Jan 22, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 3,166 views
0 votes
1 answer

How to perform a word count on a dataframe column?

Jan 22, 2019 in Big Data Hadoop by Karan
 • 3,332 views
0 votes
1 answer

Error while creating avrodatafile?

Jan 22, 2019 in Big Data Hadoop by Yazim
 • 1,734 views
0 votes
1 answer

How does the number of groups affect the cost of the shuffling phase?

Jan 22, 2019 in Big Data Hadoop by anonymous
 • 1,741 views
0 votes
1 answer

Spark.read.csv to create RDD into Dataframe

Jan 22, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 7,066 views
0 votes
1 answer

How to handle exceptions in Spark and Scala?

Jan 22, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 5,990 views
0 votes
1 answer

Creating a Parquet or Avro file

Jan 22, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 2,095 views
0 votes
1 answer

ReduceByKey Avereage

Jan 22, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 1,900 views
–1 vote
1 answer

Hdfs command to see available free space in hdfs

Jan 22, 2019 in Big Data Hadoop by digger
 • 26,740 points • 2,128 views
–1 vote
1 answer

"main" java.lang.ClassNotFoundException: WordCount

Jan 22, 2019 in Big Data Hadoop by digger
 • 26,740 points • 5,791 views
–1 vote
1 answer

WARN util.NativeCodeLoader: Unable to load native-hadoop library

Jan 22, 2019 in Big Data Hadoop by digger
 • 26,740 points • 3,437 views
–1 vote
1 answer

Who will setup multimode and single node modes?

Jan 21, 2019 in Big Data Hadoop by digger
 • 26,740 points • 1,292 views
–1 vote
1 answer

Unable to execute the jar file wordcount.

Jan 21, 2019 in Big Data Hadoop by digger
 • 26,740 points • 4,938 views
–1 vote
1 answer

Hadoop MapReduce word count program failed

Jan 21, 2019 in Big Data Hadoop by digger
 • 26,740 points • 2,701 views
–1 vote
1 answer

How to calculate difference in timestamp columns?

Jan 19, 2019 in Python by digger
 • 26,740 points • 1,842 views
–1 vote
1 answer

Jobtracker and tasktracker is nor running.

Jan 19, 2019 in Big Data Hadoop by digger
 • 26,740 points • 1,679 views
0 votes
1 answer

UnsupportedClassVersionError while running Mapreduce program.

Jan 18, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 2,135 views
0 votes
1 answer

Class not found exception when I am running my Word Count Program jar file

Jan 18, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 2,471 views
–1 vote
1 answer

Getting error while starting hdfs namenode -format

Jan 12, 2019 in Big Data Hadoop by digger
 • 26,740 points • 3,958 views
0 votes
1 answer

Failed to start namenode in hadoop

Jan 12, 2019 in Big Data Hadoop by digger
 • 26,740 points • 17,377 views
–1 vote
1 answer

Namenode daemon not starting properly

Jan 12, 2019 in Big Data Hadoop by digger
 • 26,740 points • 4,717 views
–1 vote
1 answer

Hadoop error: can not start-all.sh

Jan 11, 2019 in Big Data Hadoop by digger
 • 26,740 points • 2,891 views
–1 vote
1 answer

Hadoop daemons not starting

Jan 11, 2019 in Big Data Hadoop by digger
 • 26,740 points • 2,779 views
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