Most viewed questions in Big Data Hadoop

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Do worker hosts need access to the Cloudera public repositories for an install with Cloudera Manager?

You can perform an installation or upgrade ...READ MORE

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

How to load unencrypted tables to encrypted in Hive?

Refer to the below command to load ...READ MORE

May 30, 2019 in Big Data Hadoop by John
597 views
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1 answer

Extracting pig log messages

You can use the following commands in ...READ MORE

Jan 7, 2019 in Big Data Hadoop by Omkar
• 69,230 points
597 views
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1 answer

What is Oozie Sqoop submit command?

Hey, This is the command you can use: oozie ...READ MORE

Jun 24, 2019 in Big Data Hadoop by Gitika
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edited Jun 26, 2019 by Gitika 596 views
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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
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596 views
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1 answer

Where does hive stores its table?

With an external table the data itself ...READ MORE

Dec 7, 2020 in Big Data Hadoop by Gitika
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595 views
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1 answer

what is hadoop ecosystem?

Hadoop Ecosystem is neither a programming language ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
• 700 points
593 views
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1 answer

What are the extra files we need to run when we run a Hive action in Oozie?

Hi, Below are the extra files that need ...READ MORE

Jun 26, 2019 in Big Data Hadoop by Gitika
• 65,910 points
592 views
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1 answer

How to configure the metastore service to communicate with the MySQL database in Hive?

Hey, This step shows the configuration properties you ...READ MORE

May 29, 2019 in Big Data Hadoop by Gitika
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592 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
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edited May 14, 2019 by Omkar 592 views
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Why should we use "distinct" keyword in pig script?

Hey, The "distinct" statement is very simple. It ...READ MORE

May 3, 2019 in Big Data Hadoop by Gitika
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592 views
0 votes
1 answer

Error while creating avrodatafile?

The error you are getting is AvroWrapper class not ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
• 69,230 points
589 views
0 votes
1 answer

How to write examples to test whether the installation is validated or not?

You have some example jars in your ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
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589 views
0 votes
1 answer

Job Designer path in Hue

Hi. You can set a local path ...READ MORE

May 27, 2019 in Big Data Hadoop by Alice
588 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
588 views
0 votes
1 answer

How to Import the complete directory into HDFS?

First, need to create a directory in Hadoop: $ ...READ MORE

Jul 15, 2019 in Big Data Hadoop by Hiran
587 views
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1 answer

Create accumulo table using sqoop

Yes, you can create the missing table ...READ MORE

May 16, 2019 in Big Data Hadoop by Shalini
587 views
–1 vote
1 answer

Hdfs command to see available free space in hdfs

Yes, you check the free space using ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
• 69,230 points
587 views
+1 vote
1 answer

datanode decomissioning

You have set the replication factor to ...READ MORE

Nov 28, 2019 in Big Data Hadoop by Rahul
586 views
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1 answer

How many partitions can do for one table?

Well, there are two kinds of partitions: 1. ...READ MORE

Jul 22, 2019 in Big Data Hadoop by Kunal
585 views
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1 answer

How to build Zookeeper repository for Hue?

Open the terminal and run the following ...READ MORE

May 30, 2019 in Big Data Hadoop by Liam
585 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
• 65,910 points
585 views
0 votes
2 answers

What is Hadoop used for?

Apache Hadoop is an open-source framework that ...READ MORE

Dec 10, 2021 in Big Data Hadoop by CoderGirl
• 500 points
584 views
0 votes
0 answers

Cloudera Certification

Hi, I want to write CCA-175 (CCA Spark ...READ MORE

Aug 23, 2019 in Big Data Hadoop by Nagajyothi
• 160 points
584 views
0 votes
1 answer

How can we ignore header line while loading data into Pig?

You can use the following code: A = ...READ MORE

Jul 22, 2019 in Big Data Hadoop by kiran
584 views
0 votes
1 answer

Is data sent to some other location to be processed in pig?

With pig, we are not taking data ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Adi
584 views
0 votes
1 answer

Spark: Problem creating RDD

Please use the command as shown below ...READ MORE

May 24, 2019 in Big Data Hadoop by Raj
583 views
0 votes
1 answer

Is there a way to rebalance single Datanode in Hadoop.

Currently Hadoop does not automatically do this. ...READ MORE

Apr 15, 2018 in Big Data Hadoop by kurt_cobain
• 9,390 points
583 views
0 votes
1 answer

Creating a hive script and execute in the edureka cloudlab.

Please remove -f option from hive arguments and use hql extension ...READ MORE

Jul 14, 2019 in Big Data Hadoop by Karan
582 views
0 votes
1 answer

Enable HA for ranger KMS.

Hi, If you have installed Ranger through Ambari ...READ MORE

Oct 15, 2020 in Big Data Hadoop by MD
• 95,440 points
581 views
0 votes
1 answer

How to start and stop Master in HBase?

Hello, Using the “local-master-backup.sh” you can start up ...READ MORE

May 23, 2019 in Big Data Hadoop by Gitika
• 65,910 points
581 views
0 votes
1 answer

Which MySql command will generate all the list of command for MySql prompt?

The command is very simple, you have ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
• 65,910 points
581 views
0 votes
1 answer

How to write mapper code for Hadoop in Python?

Hi@akhtar, Any job in Hadoop must have two ...READ MORE

Oct 16, 2020 in Big Data Hadoop by MD
• 95,440 points
579 views
0 votes
1 answer

Is it possible to start a zookeeper server instance in process?

To start ZooKeeper you have to execute ZooKeeperServerMain class. You can use ...READ MORE

Oct 9, 2018 in Big Data Hadoop by Omkar
• 69,230 points
579 views
0 votes
1 answer

Why Get DATA keyword has been used in zookeeper?

Hey, It returns the associated data of the ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
• 65,910 points
578 views
0 votes
0 answers

flume installation steps on ubuntu [closed]

Jun 27, 2019 in Big Data Hadoop by shraddha
• 120 points

closed Jun 27, 2019 by Omkar 577 views
0 votes
1 answer

How to format a Hadoop Master Node?

Hi@akhtar, To start the Hadoop NameNode, you need ...READ MORE

Sep 21, 2020 in Big Data Hadoop by MD
• 95,440 points
576 views
0 votes
1 answer

how to make an existing hadoop cluster self adaptive?

Hey, @Sanjana, You can't shrink or expand nodes ...READ MORE

Jul 16, 2020 in Big Data Hadoop by Gitika
• 65,910 points
575 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
575 views
–1 vote
1 answer

Issue with MySql Server connection

Try to restart the mysqld server and then login: sudo ...READ MORE

Jan 2, 2019 in Big Data Hadoop by Omkar
• 69,230 points
575 views
–1 vote
1 answer

How to restrict nodes that talk to namenode?

Step 1: Create includes file in /home/hadoop ...READ MORE

Jan 5, 2019 in Big Data Hadoop by Omkar
• 69,230 points
574 views
0 votes
0 answers

Hive data load error

I have table in hive with below ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Rishi
573 views
0 votes
1 answer

How to create database in Mysql?

The command you can use is: create table ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
• 65,910 points
573 views
0 votes
1 answer

How to change the status of Oozie state?

Hi, You can use the command below: $ oozie ...READ MORE

Jun 25, 2019 in Big Data Hadoop by Gitika
• 65,910 points
572 views
0 votes
1 answer

Sentry configuration file in hue

Hue looks for the sentry configuration file ...READ MORE

May 30, 2019 in Big Data Hadoop by Yogi
572 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
572 views
0 votes
1 answer

Drop a table in Hive.

Hi@akhtar, When you drop a table from Hive ...READ MORE

Oct 19, 2020 in Big Data Hadoop by MD
• 95,440 points
571 views
0 votes
1 answer

Why CLI is used in Scoop?

CLI is Command Line Client which is ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
• 65,910 points
571 views
0 votes
1 answer

When do Reduce tasks start in Hadoop?

As much I understand Reduce phase start ...READ MORE

Aug 9, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
569 views
0 votes
1 answer

Hadoop Hive Bucketing

Partition helps in increasing the efficiency when ...READ MORE

Dec 14, 2018 in Big Data Hadoop by Omkar
• 69,230 points
569 views