Most voted questions in Big Data Hadoop

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Relationship between Hadoop and Database

HDFS is a software framework designed for ...READ MORE

Jul 4 in Big Data Hadoop by ravikiran
 • 4,560 points • 29 views
0 votes
1 answer

What is GraphX in Spark?

Hi, Spark uses GraphX for graph processing to ...READ MORE

Jul 2 in Big Data Hadoop by Gitika
 • 25,340 points • 36 views
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1 answer

Hadoop security GroupMappingServiceProvider exception for Spark job via Dataproc API

If you don't want to turn off ...READ MORE

Jul 2 in Big Data Hadoop by ravikiran
 • 4,560 points • 61 views
0 votes
1 answer

ElasticSearch Hadoop Cluster

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

Jul 2 in Big Data Hadoop by ravikiran
 • 4,560 points • 28 views
0 votes
1 answer

failed to start the Namenode format in hadoop generation 2

Hi, You can check this out: 1. Delete all ...READ MORE

Jul 2 in Big Data Hadoop by Ria
edited Jul 2 by Gitika • 148 views
0 votes
0 answers

what are the commonly used Spark ecosystem?

Can someone mention what are the commonly ...READ MORE

Jul 1 in Big Data Hadoop by ranjan
 • 20 views
0 votes
1 answer

what is Hive on spark?

Hey, Hive contains significant support for Apache Spark, ...READ MORE

Jul 1 in Big Data Hadoop by Gitika
 • 25,340 points • 36 views
0 votes
1 answer

How does Hadoop process data which is split across multiple boundaries in an HDFS?

I found some comments: from the Hadoop ...READ MORE

Jul 1 in Big Data Hadoop by ravikiran
 • 4,560 points • 42 views
0 votes
1 answer

Explain to me the installation procedures for RHadoop packages (RMR, RHDFS, RHBase).

Download packages rhdfs, rhbase, rmr2 and plyrmr ...READ MORE

Jun 28 in Big Data Hadoop by ravikiran
 • 4,560 points • 63 views
0 votes
1 answer

Warning: Unable to load Hadoop Native Library for your platform. [closed]

 I had the same issue. It's solved ...READ MORE

Jun 28 in Big Data Hadoop by ravikiran
 • 4,560 points • 126 views
0 votes
0 answers

flume installation steps on ubuntu [closed]

Jun 26 in Big Data Hadoop by sharda
 • 120 points
closed Jun 26 by Omkar • 39 views
0 votes
1 answer

How to connect Relational Database using Sqoop?

Hi, You can use the command below to ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 25 views
0 votes
1 answer

How to load data from flat files into different partitions of Hive table?

Hi, You can load data from flat files ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 52 views
0 votes
1 answer

How to load data from flat files into Hive?

Hey, You can load data from flat files ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 112 views
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How to create Hive tables that can be partitioned Using HiveQL?

Hey, You can create a Hive table using ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 20 views
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1 answer

How to execute Pig script from HDFS?

Hey, You can do something like executes a Pig ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 30 views
0 votes
1 answer

When creating a Hive table how can you specify the table creator name in Hive?

Hey, While creating a table the TBLPROPERTIES clause is used ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 51 views
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1 answer

Command to see the indexes of a table in Hive?

Hey, The command you can use to see ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points
edited Jun 26 by Gitika • 60 views
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1 answer

Error: Unable to instantiate

Hi,  There is a possibility that because of ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 25 views
0 votes
1 answer

what is the difference between CREATE TABLE and CREATE EXTERNAL TABLE in Hive?

Hey, Although, we can create two types of ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 128 views
0 votes
1 answer

Can I run Hadoop with Docker for both DEV and PROD environments?

Hadoop Docker Hub provides Hadoop Images, You ...READ MORE

Jun 26 in Big Data Hadoop by ravikiran
 • 4,560 points • 25 views
0 votes
0 answers

Can I run Hadoop with Docker for both DEV and PROD environments?

Is there an easiest way that works ...READ MORE

Jun 26 in Big Data Hadoop by nitinrawat895
 • 10,710 points • 18 views
0 votes
1 answer

Issue with Python Read file as stream from HDFS.

The easiest way is using the following ...READ MORE

Jun 26 in Big Data Hadoop by ravikiran
 • 4,560 points • 93 views
0 votes
1 answer

What is the significance of ‘IF EXISTS” clause while dropping a table in Hive?

Hi, Since the table being dropped does not ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 173 views
0 votes
1 answer

Which java class handles the output record encoding into files which result from Hive queries?

Hey, This particular class handles the output record ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 34 views
0 votes
1 answer

Which java class handles the Input record encoding into files which store the tables in Hive?

Hey, This particular format will handle the input ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 27 views
0 votes
1 answer

How to check if a particular partition exists in Hive?

Hey, Basically, with the following query, we can ...READ MORE

Jun 26 in Big Data Hadoop by Gitika
 • 25,340 points • 490 views
0 votes
1 answer

Can hive queries be executed from script files? And how?

Hey, It is possible by using the source ...READ MORE

Jun 25 in Big Data Hadoop by Gitika
 • 25,340 points • 32 views
0 votes
1 answer

Can a table be renamed in hive?

Hey, Yes, you can rename a table in ...READ MORE

Jun 25 in Big Data Hadoop by Gitika
 • 25,340 points • 36 views
0 votes
1 answer

What are the properties that have to be mentioned in . properties in Oozie?

Hey, These are the listed properties that need ...READ MORE

Jun 25 in Big Data Hadoop by Gitika
 • 25,340 points • 48 views
0 votes
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 25 in Big Data Hadoop by Gitika
 • 25,340 points • 52 views
0 votes
1 answer

How to Execute job in oozie?

Hi, You can use this command below to ...READ MORE

Jun 25 in Big Data Hadoop by Gitika
 • 25,340 points • 23 views
0 votes
1 answer

How are HDFS and HBase different from each other?

Apache Hadoop project includes four key modules Hadoop ...READ MORE

Jun 25 in Big Data Hadoop by ravikiran
 • 4,560 points • 35 views
0 votes
2 answers

What is the relationship between Hadoop and Database?

Hadoop software framework work is very well ...READ MORE

Aug 6 in Big Data Hadoop by Dinesh
 • 102 views
0 votes
1 answer

What are the challenges we faced as Hadoop Admin?

Hey,  There are some of the key responsibilities ...READ MORE

Jun 25 in Big Data Hadoop by Gitika
 • 25,340 points • 82 views
0 votes
1 answer

What is the process to integrate meta store for hive?

Hi. Here are the steps you can ...READ MORE

Jun 25 in Big Data Hadoop by Jimmy
 • 78 views
0 votes
1 answer

How to change the status of Oozie state?

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

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 19 views
0 votes
1 answer

What is the syntax for HiveQL SELECT Statement?

Hey,  You can use this  syntax below: SELECT [ALL ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 30 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 24 in Big Data Hadoop by Gitika
 • 25,340 points • 29 views
0 votes
1 answer

ERROR: Stop Oozie first.

Hey, Actually the problem was that tomcat aborted abnormally and ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 30 views
0 votes
1 answer

Error: E0902: Exception occured: [User: oozie is not allowed to impersonate oozie]" when trying to execute sharelib command.

Hey, You can try this, Change the value ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 44 views
0 votes
1 answer

What will happen if the OOZIE_URL environment variable has not been set?

Hey, If the Oozie_URL environment variable has not ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 33 views
0 votes
2 answers

E0901: Namenode [localhost:8020] not allowed, not in Oozies whitelist

You can add this below property in oozie-site.xml: <property> <name>oozie.service.HadoopAccessorService.jobTracker.whitelist</name> <value>myaddress:8020</value> </property> Hope ...READ MORE

Aug 6 in Big Data Hadoop by Shiva
 • 74 views
0 votes
1 answer

How can you change a column data type in Hive?

Hi, By using this command below one can ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 51 views
0 votes
1 answer

How can you enable buckets in Hive?

Hi, By using this command below bucket can be ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 30 views
0 votes
1 answer

Exception: Hadoop security GroupMappingServiceProvider. I have received this exception for running Spark job via Dataproc API

 I hope I understood your issue and ...READ MORE

Jun 24 in Big Data Hadoop by ravikiran
 • 4,560 points • 35 views
0 votes
2 answers

What is ElasticSearch Hadoop?

it as a connector that allows data to flow bi-directionaly so ...READ MORE

Aug 6 in Big Data Hadoop by Dinish
 • 57 views
0 votes
1 answer

What is Oozie Hive submit command?

Hi, You can use this example : oozie hive ...READ MORE

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points • 38 views
0 votes
1 answer

What is Oozie Sqoop submit command?

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

Jun 24 in Big Data Hadoop by Gitika
 • 25,340 points
edited Jun 26 by Gitika • 36 views
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