Trending questions in Big Data Hadoop

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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
1,425 views
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How to run HCatalog using Hive?

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

May 17, 2019 in Big Data Hadoop by Likith
1,336 views
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Sqoop set path for compiled objects

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

May 17, 2019 in Big Data Hadoop by Kunal
1,373 views
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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
1,110 views
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Why JOIN operator is used in pig?

Hey, In Apache pig, JOIN operator is used ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
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1,794 views
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Error is not recoverable: exiting now

Hey, While installing any file first thing: please confirm ...READ MORE

May 13, 2019 in Big Data Hadoop by Gitika
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1,499 views
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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
1,656 views
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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
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1,739 views
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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
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1,600 views
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How can we access data with simple SQL knowledge in hive?

Hey, The following examples are simple, common data ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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1,335 views
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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
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1,576 views
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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
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7,696 views
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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
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1,096 views
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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
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1,304 views
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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
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1,395 views
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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
1,315 views
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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 1,390 views
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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
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1,304 views
0 votes
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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
1,240 views
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Sqoop Validator Failure Handling

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

May 15, 2019 in Big Data Hadoop by Rajat
1,280 views
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Edge nodes in Hadoop

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

Feb 19, 2019 in Big Data Hadoop by Siri
4,944 views
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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
1,239 views
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Nutch with hadoop 2.7 error "GC overhead limit exceeded"

I have a small cluster of 5 ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Hafiz
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2,785 views
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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
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4,878 views
0 votes
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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
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1,219 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
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1,209 views
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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
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1,717 views
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Writing File into HDFS using spark scala

The reason you are not able to ...READ MORE

Apr 6, 2018 in Big Data Hadoop by kurt_cobain
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18,672 views
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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
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8,756 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
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1,348 views
0 votes
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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
1,075 views
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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
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2,672 views
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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
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edited May 14, 2019 by Omkar 1,187 views
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What is a pig script?

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

May 7, 2019 in Big Data Hadoop by Gitika
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1,416 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
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9,267 views
0 votes
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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
1,396 views
0 votes
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How to run WebHCat using Hive?

How can I run WebHCat using hive ...READ MORE

May 17, 2019 in Big Data Hadoop by Rishi
987 views
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Sqoop: Use accumulo with user credentials

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

May 17, 2019 in Big Data Hadoop by Carly
978 views
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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
2,490 views
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Connect to Hive using Pyhive

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

Jan 8, 2019 in Big Data Hadoop by Omkar
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6,496 views
–1 vote
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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
6,794 views
0 votes
1 answer

What is relation keyword in pig?

Hey, A relation is a bag of tuples. ...READ MORE

May 6, 2019 in Big Data Hadoop by Gitika
• 65,730 points
1,389 views
0 votes
1 answer

Increasing latency for Accumulo batch writer

The default max-latency set is 0 milliseconds. ...READ MORE

May 17, 2019 in Big Data Hadoop by Karan
952 views
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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
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2,461 views
0 votes
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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
2,410 views
0 votes
1 answer

What are Apache pig running modes?

Hey, You can run Apache pig runs in ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
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edited May 8, 2019 by Gitika 1,322 views
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How data distribution is done in Hadoop?

To understand how or what are the process ...READ MORE

Apr 4, 2019 in Big Data Hadoop by Gitika
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2,741 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
4,440 views