Trending questions in Big Data Hadoop

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Error: Unable to load native-hadoop library for your platform.

Hi,  You should execute the command hdfs dfs -ls ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
• 25,340 points
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1 answer
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Hive data load error

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

Jun 19 in Big Data Hadoop by Rishi
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Error: permission denied locoalhost: chown: cannot access /usr/local/hadoop/ No such file or directory

Hey, As the error suggested that you have ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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54 views
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Is it possible to run Apache Spark without Apache Hadoop?

First of all, Let us get a ...READ MORE

Jun 17 in Big Data Hadoop by ravikiran
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52 views
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1 answer
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How to see a running workflow, coordinate or bundle of job in Oozie?

Hey, You can use this example to see, $ ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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37 views
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Find Hadoop Configuration in Java Util.

I understand your issue of HDFS, I ...READ MORE

Jun 17 in Big Data Hadoop by ravikiran
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35 views
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Namenode stops automatically after a while when started Hadoop.

Hi, You can follow these steps which can ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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28 views
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1 answer

How to submit bundle features in Oozie?

Hey, You can use this example to learn ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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24 views
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How to execute job In Oozie?

Hi, You can use this command to execute the job ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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25 views
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Mention Job Flow parameter in Oozie?

Hey, You can use this job flow parameter ...READ MORE

Jun 17 in Big Data Hadoop by Gitika
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19 views
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1 answer

Enabling TLS/SSL on Hive

To enable TLS/SSL on hive, you have ...READ MORE

May 31 in Big Data Hadoop by Haran
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Impala concatenate string.

Yes, you can concatenate two strings using ...READ MORE

Jun 6 in Big Data Hadoop by Raghu
425 views
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1 answer

Command to see the status of MapReduce job?

Hi, You can use this command given below: Syntax: $ ...READ MORE

Jun 14 in Big Data Hadoop by Gitika
• 25,340 points
68 views
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1 answer

Datanode not running on Hadoop-2.7.3

Hey, I solved this problem by removing hadoop ...READ MORE

Jun 13 in Big Data Hadoop by Gitika
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85 views
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How to see the history of Job output-dir in MapReduce?

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

Jun 14 in Big Data Hadoop by Gitika
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38 views
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Command to get status of all running Oozie workflow

Hey, You can use this command to get ...READ MORE

Jun 12 in Big Data Hadoop by Gitika
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122 views
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How to print the counter value in MapReduce?

Hey, You can use this command to print ...READ MORE

Jun 14 in Big Data Hadoop by Gitika
• 25,340 points
32 views
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Command use to kill the job in MapReduce.

Hi, The command you can use to kill ...READ MORE

Jun 14 in Big Data Hadoop by Gitika
• 25,340 points
29 views
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2 answers

Why we require SSH during hadoop installation?

Hey, SSH setup is required to do different ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
• 25,340 points

edited Jun 11 by Gitika 107 views
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Hadoop input folder not found?

Hey, This is because the user directory not ...READ MORE

Jun 13 in Big Data Hadoop by Gitika
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30 views
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Command to initiate MapReduce which provide decent UI?

I am new to MapReduce and want ...READ MORE

Jun 14 in Big Data Hadoop by Rachna
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2 answers

Hey for all, how to get on large data i want use in hadoop?

Hi, To work with Hadoop you can also ...READ MORE

Jul 30 in Big Data Hadoop by Sunny
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1 answer

How kill control node works in Oozie?

Hey, The kill node allows a workflow job to kill ...READ MORE

Jun 12 in Big Data Hadoop by Gitika
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61 views
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2 answers

Installing HBase on windows

This procedure worked for me. https://medium.com/@bishupaulose/install ...READ MORE

Aug 16 in Big Data Hadoop by Sam
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1 answer

What is work flow application consists of in Oozie?

Hi, A workflow application consists of the workflow ...READ MORE

Jun 12 in Big Data Hadoop by Gitika
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36 views
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1 answer

How Oozie prepares Hadoop configuration file?

Hi, Oozie prepares a Hadoop configuration file which ...READ MORE

Jun 12 in Big Data Hadoop by Gitika
• 25,340 points
32 views
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1 answer

Use cases of Apache Oozie?

Hi, Apache Oozie is used by Hadoop system ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
• 25,340 points
57 views
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1 answer

What is fork Keyword in Oozie? How Fork and Join keyword are related t o each other in Oozie?

Hey, Basically, when we want to run multiple jobs ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
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50 views
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1 answer

Mention what are the main configuration parameters that user need to specify to run MapReduce Job?

Hi, The user of the MapReduce framework needs ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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83 views
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How Oozie workflow can be parameterised?

Hi, Oozie workflows can be parameterized. The parameters ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
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26 views
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1 answer

What is the necessity of slave node in Oozie workflow?

Hey, A topology runs in a distributed manner, ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
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22 views
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What start node does in Oozie?

Hey, The start node is the entry point for a ...READ MORE

Jun 11 in Big Data Hadoop by Gitika
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24 views
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How to ensure that Oozie has started? Which Command line tool use to check the status of Oozie?

Hey, To get ensure that your Oozie has ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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66 views
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1 answer

Mention what is the Hadoop MapReduce APIs contract for a key and value class?

Hey, For a key and value class, there ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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51 views
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1 answer

How to create the Oozie DB using the 'ooziedb.sh' command line tool?

This is the command you can use: $ ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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44 views
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1 answer

Explain what is WebDAV in Hadoop?

Hey, To support editing and updating files WebDAV ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
• 25,340 points
47 views
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1 answer

What is control flow Nodes defines in Oozie?

Hello, Control flow nodes define the beginning and ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
• 25,340 points
39 views
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1 answer

How to configure the Hadoop cluster with proxyuser for the Oozie process?

Hey, The following two properties are required in ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
• 25,340 points
39 views
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1 answer

Mention how many InputSplits is made by a Hadoop Framework?

Hey, Hadoop will make 5 splits 1 split for ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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32 views
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Explain what is a sequence file in Hadoop?

Hello, To store binary key/value pairs, sequence file ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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34 views
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Explain what does the conf.setMapper Class do?

Hi, Conf.setMapperclass  sets the mapper class and all ...READ MORE

Jun 10 in Big Data Hadoop by Gitika
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29 views
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Install PostgreSQL JDBC driver for Sqoop

All you have to do to install ...READ MORE

Jun 6 in Big Data Hadoop by Quill
176 views
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1 answer

Error: org.apache.thrift.transport.TTransportException (state=08S01,code=0)

This error usually occurs when the HiveServer2 ...READ MORE

Jun 4 in Big Data Hadoop by Ram
236 views
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1 answer

Explain to me the correct way to get a Hadoop FileSystem object so that I can use it for reading from HDFS as well as writing to HDFS.

FileSystem needs only one configuration key to successfully ...READ MORE

Jun 7 in Big Data Hadoop by ravikiran
• 4,560 points
69 views
0 votes
1 answer
0 votes
1 answer

Sqoop: Oracle Connection String

The format for connection string for Oracle ...READ MORE

Jun 6 in Big Data Hadoop by Varun
76 views
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1 answer

Sqoop and Teradata database connection URL

Refer below Syntax: jdbc:teradata://<HOST>/DBS_PORT=1025/DAT ...READ MORE

Jun 6 in Big Data Hadoop by Vishwa
64 views
0 votes
1 answer

Connection String for MySQL database using Sqoop

The format for the connection string and ...READ MORE

Jun 6 in Big Data Hadoop by John
66 views