Most viewed questions in Big Data Hadoop

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How to turn on REST gateway impersonation in HBase?

Hey, To turn on REST gateway impersonation, we ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 534 views
+1 vote
1 answer

Reading Performance in Hadoop Cluster

For speeding up reading performance of your ...READ MORE

Jul 25, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 534 views
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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 • 533 views
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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 • 532 views
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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
 • 65,910 points • 532 views
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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 • 532 views
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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 • 531 views
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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
 • 530 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
 • 65,910 points • 530 views
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1 answer

Can I use Amazon Web Services for free?

If you would like to use AWS ...READ MORE

Apr 25, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 530 views
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1 answer

Using Hadoop for Data Analytics.

Yes, your approach is correct - you ...READ MORE

Sep 28, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 530 views
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WARNING: Use of this script to execute namenode is deprecated. WARNING:

am getting the following errot when i ...READ MORE

Nov 10, 2021 in Big Data Hadoop by anonymous
 • 140 points • 529 views
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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 • 529 views
0 votes
1 answer

Installing WebHCat on Ubuntu

To install WebHCat on ubuntu using apt-get, ...READ MORE

Jun 3, 2019 in Big Data Hadoop by Richard
 • 528 views
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Hadoop tools/eco-system version compatibility doubt

Below are the versions which can be used ...READ MORE

Jan 31, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 528 views
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1 answer

When and when not to use PigStore?

The Pig storage is not used only ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Rushil
 • 526 views
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1 answer

Google Hadoop Filesystem Encryption

If you're asking if customer-supplied encryption keys ...READ MORE

Oct 18, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 526 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 • 525 views
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1 answer

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

Shuffle happens with key-value pairs. So, when ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 525 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 • 523 views
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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 • 523 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 • 523 views
0 votes
1 answer

Hadoop on OSX “Unable to load realm info from SCDynamicStore”

Add the following to your hadoop-env.sh file: export ...READ MORE

Oct 8, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 523 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
 • 522 views
0 votes
1 answer

CDH: Permission for Hbase user for Hbase key.

You can grant the permission for Hbase ...READ MORE

May 31, 2019 in Big Data Hadoop by Tina
 • 522 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
 • 522 views
0 votes
1 answer

Which Operating system is more preferable for data node?

In a real installation (1 active namenode, ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 522 views
0 votes
1 answer

How to assign server access to client(s) through NFS export file?

Hi, You can create the export folder, you will ...READ MORE

Aug 5, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 521 views
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0 answers

How to Execute job in oozie?

Can anyone explain how to execute Job ...READ MORE

Jun 26, 2019 in Big Data Hadoop by ritam
 • 521 views
0 votes
1 answer

Sqoop practice in Edureka VM

Hi, It is the same for all the ...READ MORE

Nov 16, 2020 in Big Data Hadoop by MD
 • 95,440 points • 520 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 • 520 views
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1 answer

When a reduce class also serve as a combiner?

It will act as a combiner when ...READ MORE

Aug 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 520 views
+1 vote
0 answers

How to export all collections in MongoDB?

Hi Team, I have one database in MongoDB. ...READ MORE

Dec 17, 2020 in Big Data Hadoop by akhtar
 • 38,230 points • 519 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 • 519 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 • 519 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
 • 519 views
0 votes
1 answer

ElasticSearch Hadoop Cluster

The elasticsearch Hadoop library is not a ...READ MORE

Jul 2, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 518 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
 • 69,230 points • 517 views
0 votes
1 answer

What are the security guidelines for Impala?

Security Guidelines for Impala: The following are the ...READ MORE

Aug 6, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 517 views
0 votes
1 answer

How to invoke the Grunt shell in MapReduce mode in Pig?

Hi@akhtar, You can invoke the Grunt shell in ...READ MORE

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,440 points • 514 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
 • 514 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 • 513 views
0 votes
1 answer

Switch to old oozie editor in Hue.

CDH 5.4 onwards uses the new editor ...READ MORE

May 27, 2019 in Big Data Hadoop by Rahul
 • 512 views
0 votes
1 answer

Problem while running MapReduce code.

You will have to create a Mapper ...READ MORE

May 23, 2019 in Big Data Hadoop by Rishi
 • 512 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
 • 65,910 points • 512 views
0 votes
1 answer

How to check the directory is present in shell script or not?

Hi, To check the directory is present in ...READ MORE

Jun 25, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 511 views
0 votes
1 answer

Unable to find Java and eclipse installation on my webconsole.

You can either install java and eclipse ...READ MORE

Aug 9, 2019 in Big Data Hadoop by Isha
 • 510 views
0 votes
1 answer

What is the difference between a Big Data Warehouse and a traditional Data Warehouse

Hadoop is similar in architecture to MPP data ...READ MORE

Aug 10, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 510 views
0 votes
1 answer

How Dumb operator used in pig?

Hey, The Dumb operator is used to run the pig ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 509 views
0 votes
1 answer

Setting user limit for Hbase?

Hey, Because HBase is a database, it opens ...READ MORE

May 29, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 508 views
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