Most voted questions in Big Data Hadoop

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1 answer

Merging Files using PIG

In order to merge two or more ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Tina
 • 248 views
0 votes
1 answer

Query regarding temporary File type conversion of parquet to text

Suppose I have the below parquet file ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Janan
 • 779 views
0 votes
1 answer

Pdf to csv file format conversions

You can convert the pdf files with ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Esha
 • 576 views
0 votes
1 answer

Regarding unstructured data handling in hadoop

There are multiple ways to import unstructured ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Jishan
 • 3,474 views
0 votes
1 answer

Sqoop import error with sqoop job

Please try the below command: sqoop job -create ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Rina
 • 1,627 views
0 votes
1 answer

Sending hdfs file to a non hadoop cluster

There are different ways to do this. ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Tarun
 • 247 views
0 votes
1 answer

Exporting of ORC file to RDBMS using SQOOP

We have to use Sqoop-HCatalog Integration here. ...READ MORE

Jul 9, 2019 in Big Data Hadoop by Rishi
 • 1,648 views
0 votes
1 answer

Amazon AWS Web Services

If you want to limit your hadoop ...READ MORE

Jul 8, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 193 views
0 votes
1 answer

Install Hadoop On Ubuntu

I guess it should be at /hadoop/hadoop-common-project/hadoop-common/sr ...READ MORE

Jul 8, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 290 views
0 votes
1 answer

Creating testjob in sqoop for incremental load

Yes, it is possible to do so. ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Umar
 • 508 views
0 votes
1 answer

How to set rep to particular user in hdfs?

HDFS does not allocate capacity separately based ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Leena
 • 285 views
0 votes
1 answer

How to resolve corrupted blocks in Hadoop?

You can use hdfs fsck / to ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Nandini
 • 3,875 views
0 votes
1 answer

Unable to instantiate hive metastore

To resolve this issue, follow the steps ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Ritu
 • 368 views
0 votes
1 answer

Hive complex data types

There are three complex types in hive, arrays: ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Gani
 • 13,010 views
0 votes
1 answer

How does decreasing the block size make more space on Datanode?

When there is space in data nodes ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Krish
 • 296 views
0 votes
1 answer

Getting error while using sqoop import.

You are trying to execute the sqoop ...READ MORE

Jul 5, 2019 in Big Data Hadoop by Reshma
 • 753 views
0 votes
1 answer

How to install RHadoop packages (RMR, RHDFS, RHBase)?

With dev tools you can install directly ...READ MORE

Jul 5, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,985 views
0 votes
1 answer

How to install Hadoop on Ubuntu?

You can manually create a file hadoop-env.sh ...READ MORE

Jul 5, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 284 views
0 votes
1 answer

Merging Files using PIG

In order to merge two or more ...READ MORE

Jul 4, 2019 in Big Data Hadoop by Tina
 • 1,053 views
0 votes
1 answer

Explain to me how to transfer data between Azure tables and Hadoop on Azure

I shall redirect you to a link ...READ MORE

Jul 4, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 284 views
0 votes
1 answer

Relationship between Hadoop and Database

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

Jul 4, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 221 views
0 votes
1 answer

What is GraphX in Spark?

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

Jul 2, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 510 views
0 votes
1 answer

Hadoop security GroupMappingServiceProvider exception for Spark job via Dataproc API

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

Jul 2, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 929 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 • 299 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, 2019 in Big Data Hadoop by Ria
edited Jul 2, 2019 by Gitika • 1,205 views
0 votes
0 answers

what are the commonly used Spark ecosystem?

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

Jul 2, 2019 in Big Data Hadoop by ranjan
 • 279 views
0 votes
1 answer

what is Hive on spark?

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

Jul 2, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 663 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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 457 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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 495 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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 5,342 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 • 279 views
0 votes
1 answer

How to connect Relational Database using Sqoop?

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 412 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 776 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 2,476 views
0 votes
1 answer

How to create Hive tables that can be partitioned Using HiveQL?

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 209 views
0 votes
1 answer

How to execute Pig script from HDFS?

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 458 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 696 views
0 votes
1 answer

Command to see the indexes of a table in Hive?

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points
edited Jun 26, 2019 by Gitika • 3,526 views
0 votes
1 answer

Error: Unable to instantiate

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 199 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 974 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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 202 views
0 votes
1 answer

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

Hi, Yes, you can run Hadoop with Docker ...READ MORE

Jan 24, 2020 in Big Data Hadoop by MD
 • 95,380 points • 237 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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 2,284 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 2,254 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 348 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 425 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, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 7,737 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 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 438 views
0 votes
1 answer

Can a table be renamed in hive?

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

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,890 points • 2,087 views
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