Most answered questions in Big Data Hadoop

0 votes
1 answer

Command to get status of all running Oozie workflow

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 5,972 views
0 votes
1 answer

How Oozie prepares Hadoop configuration file?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,341 views
0 votes
1 answer

How kill control node works in Oozie?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,783 views
0 votes
1 answer

What is work flow application consists of in Oozie?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 887 views
0 votes
1 answer

How Oozie workflow can be parameterised?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,765 views
0 votes
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 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 3,383 views
0 votes
1 answer

What is the necessity of slave node in Oozie workflow?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 811 views
0 votes
1 answer

Use cases of Apache Oozie?

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

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,309 views
0 votes
1 answer

What start node does in Oozie?

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

Jun 11, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 826 views
0 votes
1 answer

What is control flow Nodes defines in Oozie?

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

Jun 10, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,321 views
0 votes
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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,213 views
0 votes
1 answer

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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,140 views
0 votes
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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,479 views
0 votes
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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,348 views
0 votes
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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,129 views
0 votes
1 answer

Explain what is WebDAV in Hadoop?

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

Jun 10, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,304 views
0 votes
1 answer

Explain what does the conf.setMapper Class do?

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

Jun 10, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,001 views
0 votes
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, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 2,845 views
0 votes
1 answer

Explain what is a sequence file in Hadoop?

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

Jun 10, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 1,321 views
0 votes
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, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 2,942 views
0 votes
1 answer

How do I handle "Hadoop security GroupMappingServiceProvider exception" while I am running a Spark job via Dataproc API?

I understood your issue and as far ...READ MORE

Jun 7, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,586 views
0 votes
1 answer

Factorial function in Impala

There are two ways to do this: select ...READ MORE

Jun 7, 2019 in Big Data Hadoop by Reshma
 • 804 views
0 votes
1 answer

How to subtract month from Impala time stamp?

You don't need another method, you can ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Tina
 • 4,076 views
0 votes
1 answer

Impala: Add months to current time

You can add the months using the add_months method ...READ MORE

Jun 6, 2019 in Big Data Hadoop by John
 • 2,428 views
0 votes
1 answer

Impala get current time

You can get the current time using ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Raman
 • 1,992 views
0 votes
1 answer

Power of a number in Impala

Suppose you have fetched two values X ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Reshma
 • 1,089 views
0 votes
1 answer

Impala concatenate string.

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

Jun 6, 2019 in Big Data Hadoop by Raghu
 • 14,726 views
0 votes
1 answer

Sqoop and Teradata database connection URL

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

Jun 6, 2019 in Big Data Hadoop by Vishwa
 • 1,539 views
0 votes
1 answer

What is the PostgreSQL connection string for Sqoop?

The format of the connection string is: jdbc:postgresql://<HOST>:<PORT>/<DATABASE_NAME> You ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Kamal
 • 2,401 views
0 votes
1 answer

Connection String for MySQL database using Sqoop

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

Jun 6, 2019 in Big Data Hadoop by John
 • 2,408 views
0 votes
1 answer

Sqoop: Oracle Connection String

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

Jun 6, 2019 in Big Data Hadoop by Varun
 • 2,564 views
0 votes
1 answer

Install PostgreSQL JDBC driver for Sqoop

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

Jun 6, 2019 in Big Data Hadoop by Quill
 • 3,654 views
0 votes
1 answer

Using Microsoft SQL Server for Sqoop

To use Microsoft SQL Server for Sqoop, ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Ramay
 • 1,318 views
0 votes
1 answer

Run Oozie against a federated Cluster

You can run Oozie against the federated ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Nanda
 • 778 views
0 votes
1 answer

Oozie Uber JARs support configuration

You can configure Oozie to handle Uber ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Karan
 • 1,035 views
0 votes
1 answer

How to configure Oozie to use Oracle?

You have to mention the following properties ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Rishi
 • 1,179 views
0 votes
1 answer

Is there a possibility to run Apache Spark without Hadoop?

Spark and Hadoop both are the open-source ...READ MORE

Jun 6, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,836 views
0 votes
1 answer

Can some one help me resolve this warning? It says "Unable to load Native-Hadoop library to your platform"

I understood the issue. I have faced ...READ MORE

Jun 6, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,373 views
0 votes
1 answer

Configure Oozie to use MySQL

To configure Oozie to use MySQL, open ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Karan
 • 1,689 views
0 votes
1 answer

Configure Oozie to use MariaDB

Add the following properties in the oozie-site.xml file, it ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Esha
 • 1,010 views
0 votes
1 answer

Configure Oozie to use PostgreSQL

To configure Oozie to use PostgreSQL, add ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Rajan
 • 1,419 views
0 votes
1 answer

Remove attribute from a column in HBase

To remove the attribute from a column, ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Firoz
 • 1,372 views
0 votes
1 answer

Using hedged reads in HBase

To enable hedged reads, open the hbase-site.xml file and ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Gani
 • 1,146 views
0 votes
1 answer

Hive queries from mapreduce gives Null Pointer Exception.

I think you have upgraded CDH. This ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Rihan
 • 2,880 views
0 votes
1 answer

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

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

Jun 4, 2019 in Big Data Hadoop by Ram
 • 12,884 views
0 votes
1 answer

Hive Execution Engine

The default execution engine for Hive is mr. To ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Varun
 • 2,588 views
0 votes
1 answer

JDBC to HiveServer2 connection in HTTPS mode with SSL enabled

To connect to HiveServer2 in HTTPS mode ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Firoz
 • 2,500 views
0 votes
1 answer

Connecting to HiveServer2 with SSL enabled.

The connection URL format to connect to ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Dinesh
 • 891 views
0 votes
1 answer

How to connect to HiveServer2 in HTTPS mode?

The connection URL to connect to HiveServer2 ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Rachit
 • 1,571 views
0 votes
1 answer

HiveServer2 connection URL for remote mode

For a remote server, the URL format ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Mahesh
 • 1,174 views
Page:

Most popular tags

"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.