Trending questions in Big Data Hadoop

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What is REST keyword in Hbase?

Hey, REST stands for Representational State transfer, which ...READ MORE

May 21, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,673 views
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1 answer

Analyse log files in pig?

Hey, Log files are created by an application which ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,259 views
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1 answer

Why INSERT command in Hive?

Hey, The insert command is used to load the data ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,907 views
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1 answer

If there are two joins in hive, how many mapreduce jobs will run?

There are two conditions for no. of ...READ MORE

Dec 19, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 8,253 views
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1 answer

How to check your file is created on HDFS?

Hey,  There is a process or steps you ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,237 views
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1 answer

Which is better to create a Hadoop Job? MapRed or MapReduce package?

There is no much difference between the ...READ MORE

May 13, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points
edited May 14, 2019 by Omkar • 1,977 views
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1 answer

Explain the Data Model operation in Hbase?

Hi, The Data Model operations in Hbase are ...READ MORE

May 21, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,627 views
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1 answer

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

Even I faced the same issue but ...READ MORE

May 10, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 2,087 views
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1 answer

How to create a file in Linux from terminal window?

Hey, Nothing to worry about creating any file ...READ MORE

May 13, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,940 views
0 votes
1 answer

Hadoop Java: org.apache.hadoop.conf.Configuration does not exist error

To solve this error, add hadoop-common to ...READ MORE

Nov 21, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 9,452 views
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1 answer

What are the components of Driver in Hive?

Hey, There are three major components of driver ...READ MORE

May 11, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,060 views
0 votes
1 answer

Features of Hive?

Hey, The features of Hive are as follows: It ...READ MORE

May 10, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,102 views
0 votes
1 answer

Hadoop version problem: System is launching different version of Hadoop

When you run sudo service hadoop-master command, it internally runs ...READ MORE

May 22, 2019 in Big Data Hadoop by Tina
 • 1,538 views
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1 answer

Edge nodes in Hadoop

Namenodes and Datanodes are a part of ...READ MORE

Feb 19, 2019 in Big Data Hadoop by Siri
 • 5,543 views
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1 answer

Sqoop set path for compiled objects

While you use the sqoop command (I ...READ MORE

May 17, 2019 in Big Data Hadoop by Kunal
 • 1,772 views
0 votes
1 answer

How to increase Sqoop Accumulo write buffer size?

By default the write buffer size is ...READ MORE

May 17, 2019 in Big Data Hadoop by Rishi
 • 1,761 views
+2 votes
1 answer

Hadoop: Type mismatch in key from map: expected org.apache.hadoop.io.Text, recieved org.apache.hadoop.io.LongWritable

Add these 2 lines in your code ...READ MORE

Nov 15, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 9,539 views
0 votes
1 answer

How to run HCatalog using Hive?

You can run HCatalog using the below ...READ MORE

May 17, 2019 in Big Data Hadoop by Likith
 • 1,705 views
0 votes
1 answer

How to specify Hue Server Http address?

Search for the Hue configuration file on ...READ MORE

May 24, 2019 in Big Data Hadoop by Rahul
 • 1,392 views
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1 answer

I am install hadoop on signal node and run program but delay time if have dataset size 3.3 GB take time about 2 hours

Hey @Faris! Try increasing the number of reducers. ...READ MORE

Apr 12, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 3,197 views
0 votes
1 answer

What are the components of Hbase?

Hey, Components of Hbase are as follows: Zookeeper:- It ...READ MORE

May 21, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,512 views
0 votes
0 answers

Hello ,how know runing time on single node ,i am enter (local host:8088)but empty display ?

May 19, 2019 in Big Data Hadoop by anonymous
 • 1,657 views
+1 vote
2 answers

What does hadoop fs -du command gives as output?

du command is used for to see ...READ MORE

Jul 24, 2019 in Big Data Hadoop by Lokesh Singh
 • 8,447 views
0 votes
1 answer

Copy files to all Hadoop DFS directories

Hi @Bhavish. There is no Hadoop command ...READ MORE

Feb 24, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 5,233 views
0 votes
1 answer

How to perform joins in Apache hive?

Hey, Join operation will work always with two ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,690 views
0 votes
1 answer

Sqoop Validator Failure Handling

Once you have downloaded the failure handler ...READ MORE

May 15, 2019 in Big Data Hadoop by Rajat
 • 1,723 views
0 votes
1 answer

Default sqoop validator and how to change?

The default validator used is  org.apache.sqoop.validation.RowCountValidator. If you ...READ MORE

May 15, 2019 in Big Data Hadoop by Sharan
 • 1,723 views
0 votes
1 answer

Sqoop: Use HBase table instead of HDFS

To override the default and import data ...READ MORE

May 16, 2019 in Big Data Hadoop by Rajini
 • 1,660 views
0 votes
1 answer

What is DML in Hive?

Hi, DML is Data Manipulation Language. DML statements are ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,706 views
0 votes
1 answer

Connect to Hive using Pyhive

Here's how we can connect to Hive ...READ MORE

Jan 8, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 7,161 views
0 votes
1 answer

Can someone help with Hadoop installation Setup on Ubuntu?

I have understood your query, I have ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,675 views
0 votes
1 answer

How to use SQLServer database with Sqoop?

First, download the SQLServer connector from Microsoft's ...READ MORE

May 15, 2019 in Big Data Hadoop by Karan
 • 1,660 views
0 votes
1 answer

Default file format in Hive

By Default its TextFileFormat for hive unless you use serdes to ...READ MORE

Feb 20, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 5,302 views
0 votes
1 answer

How to save Spark dataframe as dynamic partitioned table in Hive?

Hey, you can try something like this: df.write.partitionBy('year', ...READ MORE

Nov 6, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 9,849 views
0 votes
1 answer

What is the difference in DistCP command and Sqoop command in Hadoop?

Both the distCP (Distributed copy in Hadoop) ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 3,094 views
0 votes
1 answer

How to import Flat files in Hadoop using sqoop?

Sqoop is a tool which we use ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 3,160 views
0 votes
1 answer

Relation between LOAD operation and LOCAL keyword?

Hey, The Load operation is used to move the ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,617 views
0 votes
1 answer

Sqoop import mention accumulo instance to use

You have to mention the accumulo instance ...READ MORE

May 17, 2019 in Big Data Hadoop by Esha
 • 1,546 views
0 votes
1 answer

What is Kafka? what is its importance in Big-Data?

Apache Kafka is a tool used in ...READ MORE

Apr 11, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 3,059 views
0 votes
1 answer

Explain LOAD keyword in pig script?

Hey, Load helps to load data from the ...READ MORE

May 3, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,112 views
0 votes
1 answer

Explain to me the difference between HadoopHDFS and HBase.

Let me explain the major differences between ...READ MORE

May 13, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points
edited May 14, 2019 by Omkar • 1,650 views
0 votes
1 answer

Hey I am install Hadoop on single node and run program that file size is 3.2 GB and the time is 25 mins، Is this true or get less time. Thanks

Not sure what exactly you mean by ...READ MORE

Apr 22, 2019 in Big Data Hadoop by Shaam
 • 2,632 views
+1 vote
1 answer

what are the typicall block sizes in HDFS

HDFS is a block structured file system ...READ MORE

Apr 8, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 3,119 views
+1 vote
1 answer

Need help Installing Sqoop on Windows.

Download Sqoop from this link: http://www.apache.org/dyn/closer.lua/sqoop/1.4.7 This link is ...READ MORE

Feb 25, 2019 in Big Data Hadoop by Chandu
 • 4,920 views
0 votes
1 answer

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

I understand your problem, I suggest you download ...READ MORE

May 10, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,758 views
0 votes
1 answer

How does Hadoop accesses the files which are distributed among different boundaries?

Hadoop's MapReduce function does not work on ...READ MORE

May 7, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,888 views
–1 vote
1 answer

unable to start hive server

It seems that your hive server is ...READ MORE

Jan 2, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 7,308 views
0 votes
1 answer

What are the relational operators available related to loading and storing in pig language?

Hey, For loading data and storing it into ...READ MORE

May 3, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,014 views
0 votes
1 answer

Sqoop: Use accumulo with user credentials

Refer to the below syntax and use ...READ MORE

May 17, 2019 in Big Data Hadoop by Carly
 • 1,428 views
0 votes
1 answer

What is a pig script?

Hey, Pig script is nothing but a set ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,816 views
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