Trending questions in Big Data Hadoop

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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
1,186 views
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How to enable impersonation in HiveServer2?

You have to configure 2 files for ...READ MORE

Jun 3, 2019 in Big Data Hadoop by Reshma
2,549 views
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what is Hive on spark?

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

Jul 2, 2019 in Big Data Hadoop by Gitika
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How to check the information and status of workflow, coordinator or Bundle job or coordinator Action in Oozie?

Hi, You can check this example to see ...READ MORE

Jun 18, 2019 in Big Data Hadoop by Gitika
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1,863 views
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Can we use different i/p and o/p format classes in mapreduce code?

Yes, InputFormatClass and OutputFormatClass are independent of ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Jimmy
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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
1,104 views
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Sqoop: Oracle Connection String

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

Jun 6, 2019 in Big Data Hadoop by Varun
2,350 views
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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
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How to change the default value and to alter a column in sql?

Hi, You can try this: ALTER TABLE foobar_data CHANGE ...READ MORE

Jun 24, 2019 in Big Data Hadoop by Gitika
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1,639 views
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Unable to instantiate hive metastore

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

Jul 5, 2019 in Big Data Hadoop by Ritu
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What is GraphX in Spark?

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

Jul 2, 2019 in Big Data Hadoop by Gitika
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JDBC connection to Hive using TLS/SSL

Hi. The properties are right but in ...READ MORE

May 31, 2019 in Big Data Hadoop by Karan
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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
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1,447 views
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Hive Execution Engine

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

Jun 4, 2019 in Big Data Hadoop by Varun
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Is data sent to some other location to be processed in pig?

With pig, we are not taking data ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Adi
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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
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Amazon AWS Web Services

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

Jul 8, 2019 in Big Data Hadoop by ravikiran
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889 views
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Hive Connection issue

You are getting the issues probably because ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Karan
1,711 views
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2 answers

How are Partitioning and Bucketing different from each other in Apache Hive?

Let us consider a student database table ...READ MORE

Apr 15, 2019 in Big Data Hadoop by nitinrawat895
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4,471 views
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What is the use of setting the name of the job in mapreduce?

Job job = new Job(conf,"job_name") is just used ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Umesh
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Merging Files using PIG

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

Jul 9, 2019 in Big Data Hadoop by Tina
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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
2,235 views
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Hive: Dropping a not empty database

This behavior is because Hive by default ...READ MORE

May 20, 2019 in Big Data Hadoop by Rakshit
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Configuring JDBC Clients for LDAP Authentication with HiveServer2

JDBC client requires a connection URL as ...READ MORE

Jun 3, 2019 in Big Data Hadoop by Raman
2,353 views
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Pig: Does these jar files run in NodeManager to produce result?

Below is what happens with the map-reduce ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Lucy
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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
2,309 views
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Where is table data stored in Apache HIve by default?

Hi, yes, you can do it by using  ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Gitika
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1,686 views
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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
2,215 views
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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
2,180 views
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What is the process to integrate meta store for hive?

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

Jun 25, 2019 in Big Data Hadoop by Jimmy
1,368 views
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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, 2019 in Big Data Hadoop by Gitika
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1,385 views
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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
1,076 views
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How to add mysql database for Hue Query app?

Hi. To add mysql database in the config, open ...READ MORE

May 27, 2019 in Big Data Hadoop by Vasu
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How do I create a subquery in hive?

Hey, Hive subquery is a select expression enclosed ...READ MORE

May 17, 2019 in Big Data Hadoop by Gitika
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2,977 views
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Sqoop error while trying to connect to MySql

Please use the below command to solve ...READ MORE

May 22, 2019 in Big Data Hadoop by Bhagavath
2,752 views
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Setting Impala host and port in Hue

To set the Impala server details, you ...READ MORE

May 24, 2019 in Big Data Hadoop by Kunal
2,656 views
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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
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1,227 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, 2019 in Big Data Hadoop by Gitika
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1,915 views
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How can we configure remote metastore mode in Hive?

Hey,  Basically, hive-site.xml file has to be configured ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Gitika
• 65,770 points
1,564 views
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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
835 views
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Why HBase is column oriented database?

Hey, Yes, Hbase is known to be a ...READ MORE

May 20, 2019 in Big Data Hadoop by Gitika
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2,805 views
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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
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687 views
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Oozie exception error handling.

Hi, We can set Hive Action configuration using ...READ MORE

Jun 18, 2019 in Big Data Hadoop by Gitika
• 65,770 points
1,548 views
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How to load data from HDFS into pig relation?

Hey, To load data from HDFS to pig ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
• 65,770 points
3,369 views
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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
806 views
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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
1,098 views
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1 answer

Enabling TLS/SSL on Hive

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

May 31, 2019 in Big Data Hadoop by Haran
2,315 views
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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
931 views
0 votes
1 answer

How to create initial database without using Hive schema tool?

Hey, If for some reason you decide not ...READ MORE

May 29, 2019 in Big Data Hadoop by Gitika
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2,372 views
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1 answer

How to run PIG script?

Please follow the below screenshots for creating ...READ MORE

Jun 20, 2019 in Big Data Hadoop by Dinesh
1,428 views