Trending questions in Big Data Hadoop

0 votes
2 answers

How to exit NameNode safe mode?

hadoop dfsadmin -safemode leave READ MORE

Apr 11, 2019 in Big Data Hadoop by anonymous
 • 4,015 views
0 votes
1 answer

Hadoop regarding input split

Hadoop framework divides a large file into ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 811 views
–1 vote
1 answer

Spark multiple version without major version

Yes. It is not necessary to set ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 846 views
–1 vote
1 answer

Can't seem to make hdfs commands to work

Check the ip address mentioned in core-site.xml ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,096 views
0 votes
1 answer

How to read Spark elements having multiple lines each?

Try this: val new_records = sc.newAPIHadoopRDD(hadoopConf,classOf[ ...READ MORE

Dec 12, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,427 views
0 votes
1 answer

Not able to start jobtracker in hadoop

There is no jobtracker in hadoop 2.2.0 YARN framework. ...READ MORE

Dec 11, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,461 views
–1 vote
1 answer

Mapreduce in Python

mapper.py #!/usr/bin/python import sys #Word Count Example # input comes from ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,072 views
0 votes
1 answer

Cant find slave on ResourceManager Web UI

Seems like it is running on default ...READ MORE

Dec 5, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,720 views
0 votes
1 answer

Mapreduce shuffle and sort

The mapreduce task happens in the following ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 712 views
–1 vote
1 answer

Hadoop cluster is not running in vm

First check if all daemons are running: sudo ...READ MORE

Dec 26, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 793 views
0 votes
1 answer

How is a file written in hdfs?

When you copy a file from the ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 961 views
–1 vote
1 answer

Facing the below error while installing mysql in VM

We would like to say that the ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 988 views
–1 vote
1 answer

File is available at HDFS location. Still system throws en error.

This is happening because the file name ...READ MORE

Jan 2, 2019 in Big Data Hadoop by Omkar
 • 69,220 points • 464 views
0 votes
1 answer

All daemons starting except datanode

There could be more than one reason ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 912 views
0 votes
1 answer

Not able to install hadoop using maven

First make sure you have ant installed ...READ MORE

Dec 6, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,549 views
0 votes
1 answer

How to fix corrupt HDFS FIles?

You can use hdfs fsck / to ...READ MORE

Oct 25, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 3,377 views
0 votes
1 answer

What is local file System?

LocalFS means it may be your LinuxFS ...READ MORE

Dec 11, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,339 views
0 votes
1 answer

Apache Spark vs MapReduce

Both Spark and Hadoop MapReduce are used ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 967 views
0 votes
1 answer

Datanode not running and not able start

Please type the below command in the ...READ MORE

Dec 20, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 916 views
0 votes
1 answer

Not able to list sqoop jobs

It seems like you are missing a ...READ MORE

Dec 13, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,213 views
0 votes
1 answer

How to export file from sqoop to sql table?

For SQOOP export please try below command: bin/sqoop ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,169 views
+2 votes
5 answers

Not able to start hadoop dfs

You can re-install openssh-client and openssh-server: $ sudo ...READ MORE

Oct 25, 2018 in Big Data Hadoop by Jino
 • 3,160 views
0 votes
1 answer

Sqoop import not working

The error you are getting is because ...READ MORE

Dec 18, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 982 views
0 votes
1 answer

Which side join is taken by default by hive? Map-side or Reduce-side?

The syntax for Map-side join and Reduce-side ...READ MORE

Dec 13, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,181 views
0 votes
1 answer

What is the meaning of Write Ahead Log in Hadoop?

Write Ahead Log (WAL) is a file ...READ MORE

Nov 21, 2018 in Big Data Hadoop by Sunil
 • 2,169 views
0 votes
1 answer

Hadoop Hive partitioning

Partitioning: Hive has been one of the preferred ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,151 views
0 votes
1 answer

Hadoop: Datanode not starting correctly

You can do the following method, copy to ...READ MORE

Nov 5, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 2,784 views
0 votes
1 answer

Hadoop MapReduce wordcount "type job is not applicable for the arguments" error

The combiner class is not required in ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 848 views
0 votes
1 answer

Command to partition table in Hive

Yes, You need to mention the below ...READ MORE

Dec 17, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 920 views
0 votes
1 answer

How to connect impala to cloud lab?

impala-shell -i <domain_name>: <port > READ MORE

Dec 13, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,090 views
0 votes
1 answer

Hadoop Data node acknowledgement

Let's understand full write mechanism so that ...READ MORE

Dec 18, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 852 views
+2 votes
1 answer

How To Configure Tls Encryption For Cloudera Manager?

The Cloudera Connect Partner Program, more than ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 730 views
0 votes
1 answer

How to Upgrade Apache Hadoop from 2.4.1 to 2.6.0

If the downtime is not an issue, ...READ MORE

Nov 30, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,620 views
–1 vote
1 answer

Namenode start error

Seems like the content in core-site.xml file is ...READ MORE

Dec 26, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 522 views
0 votes
1 answer

I want to install snappy on Hadoop 1.2.1. How do I do that?

As per Cloudera, if you install hadoop ...READ MORE

Dec 11, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,137 views
–1 vote
1 answer

What is shared FS in the standby namenode?

Shared FS Basically implies to the high ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 759 views
–1 vote
1 answer

Not able to access hadoop cluster

The issue which you are facing is ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 708 views
0 votes
1 answer

What is the difference between Hadoop API and Streaming?

Usually we have Map/Reduce pair written in ...READ MORE

Dec 12, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,050 views
+1 vote
1 answer

Do Cloudera’s Products Work With My Existing Data Management Infrastructure?

The Cloudera Connect Partner Program, more than ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 690 views
0 votes
1 answer

How to create external Hive table?

It's simple. You just have to add external ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 930 views
0 votes
1 answer

Hadoop mapreduce java: NullPoint Exception

Try this: String cords = it.next().toString(); lattitude = Double.toString((inst.decode(cords))[0]); longitude ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 920 views
0 votes
1 answer

How to provide encryption for Cloudera HDFS?

You can provide security to cloudera hdfs by using HDFS ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 618 views
0 votes
1 answer

Getting some warning/error while loading java file using Hbase commands

In your code, you have set some ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 899 views
0 votes
1 answer

Which is helpful SVN or Git for Hadoop Development?

The official location for Hadoop is the ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,228 views
0 votes
1 answer

Error while connecting to Hive using Java JDBC

Use ​org.apache.hive.jdbc.HiveDriver as your driver ...READ MORE

Nov 22, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 1,883 views
0 votes
1 answer

How to write a file in hdfs with Java?

You could pass the URI when getting ...READ MORE

Sep 26, 2018 in Big Data Hadoop by digger
 • 26,740 points • 4,307 views
–1 vote
1 answer

Is standby node missing in Hadoop 1.0?

Yes, Hadoop 1.0 didn't have standby namenode. ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 657 views
0 votes
1 answer

How to use sqoop import?

Here is an example of import command. ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 879 views
0 votes
1 answer

What are the different relational operations in “Pig Latin” you worked with?

Different relational operators are: for each order by fil ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 884 views
0 votes
1 answer

Hadoop: Not able to start Namenode

Stop all running server 1) stop-all.sh Edit the ...READ MORE

Nov 8, 2018 in Big Data Hadoop by Omkar
 • 69,220 points • 2,433 views
Page:

Most popular tags

"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.