Most answered questions in Big Data Hadoop

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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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3,197 views
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1 answer

How to run HCatalog using Hive?

You can run HCatalog using the below ...READ MORE

May 17, 2019 in Big Data Hadoop by Likith
1,010 views
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How to override Mapred home directory using sqoop?

Sqoop provides an option to override the ...READ MORE

May 17, 2019 in Big Data Hadoop by Rajini
1,184 views
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Specify JDBC driver to use with Sqoop

Mention the JDBC driver in the sqoop import ...READ MORE

May 17, 2019 in Big Data Hadoop by Kishan
1,643 views
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1 answer

How to set output path for sqoop generated code?

To set output path for the generated ...READ MORE

May 17, 2019 in Big Data Hadoop by Suman
1,658 views
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1 answer

Sqoop set path for compiled objects

While you use the sqoop command (I ...READ MORE

May 17, 2019 in Big Data Hadoop by Kunal
1,048 views
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1 answer

Sqoop: Use accumulo with user credentials

Refer to the below syntax and use ...READ MORE

May 17, 2019 in Big Data Hadoop by Carly
693 views
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Sqoop import mention accumulo instance to use

You have to mention the accumulo instance ...READ MORE

May 17, 2019 in Big Data Hadoop by Esha
763 views
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1 answer

How to set Zookeeper server for Accumulo in sqoop?

Hi. To mention the Zookeeper server in ...READ MORE

May 17, 2019 in Big Data Hadoop by Kumar
1,163 views
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1 answer

Increasing latency for Accumulo batch writer

The default max-latency set is 0 milliseconds. ...READ MORE

May 17, 2019 in Big Data Hadoop by Karan
675 views
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1 answer

How to increase Sqoop Accumulo write buffer size?

By default the write buffer size is ...READ MORE

May 17, 2019 in Big Data Hadoop by Rishi
1,046 views
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Create accumulo table using sqoop

Yes, you can create the missing table ...READ MORE

May 16, 2019 in Big Data Hadoop by Shalini
1,124 views
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Sqoop import tables to Accumulo

To make sqoop import data into Accumulo, ...READ MORE

May 16, 2019 in Big Data Hadoop by Tina
1,654 views
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1 answer

I need to copy data from one HDFS to another HDFS. Can you help me do so?

I understood your issue. Let me help you ...READ MORE

May 16, 2019 in Big Data Hadoop by ravikiran
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2,809 views
0 votes
1 answer

How to decrease load on HBase while importing Sqoop?

Sqoop by default serializes all the input ...READ MORE

May 16, 2019 in Big Data Hadoop by Yogi
1,180 views
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1 answer

Sqoop: Use HBase table instead of HDFS

To override the default and import data ...READ MORE

May 16, 2019 in Big Data Hadoop by Rajini
911 views
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How can you transfer data from hive to HDFS ?

Hey, Data in Hive tables reside on HDFS, ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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3,018 views
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1 answer

How to perform joins in Apache hive?

Hey, Join operation will work always with two ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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945 views
0 votes
1 answer

How can we access data with simple SQL knowledge in hive?

Hey, The following examples are simple, common data ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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946 views
0 votes
1 answer

List of all the functions that can be obtain from hive?

Hello, A list of all functions can be ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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1,293 views
0 votes
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What is the syntax for creating bucketing table in hive?

Hi, Syntax for creating bucketed table is as ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
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1,856 views
0 votes
1 answer

Why Max is throwing in below query in hive for alias?

Hi, You can do one thing, just enclose ...READ MORE

May 17, 2019 in Big Data Hadoop by reshma
1,116 views
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1 answer

Why INSERT command in Hive?

Hey, The insert command is used to load the data ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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1,031 views
0 votes
1 answer

How to import tables into Hive from Sqoop?

Very simple, in your sqoop command that ...READ MORE

May 15, 2019 in Big Data Hadoop by John
1,327 views
0 votes
1 answer

How to overwrite HIVE_HOME while using sqoop?

Sqoop by default takes the HIVE_HOME as ...READ MORE

May 15, 2019 in Big Data Hadoop by Vidya
1,820 views
0 votes
1 answer

Processing BLOB data in Sqoop

This is a common problem while using ...READ MORE

May 15, 2019 in Big Data Hadoop by Vasant
1,645 views
0 votes
1 answer

How to set mapping to java in sqoop?

Hey @Chris, to set the mapping to ...READ MORE

May 15, 2019 in Big Data Hadoop by Reshma
1,646 views
0 votes
1 answer

How to use data compression in sqoop import?

You can enable data compression from the ...READ MORE

May 15, 2019 in Big Data Hadoop by Rocky
2,552 views
0 votes
1 answer

How to fetch more data from database while using Sqoop import?

Hey. You guessed it right. The max ...READ MORE

May 15, 2019 in Big Data Hadoop by Gani
2,906 views
0 votes
1 answer

Can you please help with Hive Query to get FirstName, MiddleName, LastName and Suffix from FullName in Hive. Thank you

Hey, You can get first name, middle name, ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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edited May 15, 2019 by Gitika 2,520 views
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How to import selected columns in Sqoop?

If you want to import selected columns, ...READ MORE

May 15, 2019 in Big Data Hadoop by Shirish
2,062 views
0 votes
1 answer

How to import data in sqoop as a Parquet file?

Sqoop allows you to import the file ...READ MORE

May 15, 2019 in Big Data Hadoop by Nanda
11,533 views
0 votes
1 answer

Sqoop Validator Failure Handling

Once you have downloaded the failure handler ...READ MORE

May 15, 2019 in Big Data Hadoop by Rajat
956 views
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1 answer

Default sqoop validator and how to change?

The default validator used is  org.apache.sqoop.validation.RowCountValidator. If you ...READ MORE

May 15, 2019 in Big Data Hadoop by Sharan
989 views
0 votes
1 answer

Sqoop import validation

Hi. Sqoop allows you to validate the ...READ MORE

May 15, 2019 in Big Data Hadoop by Sanju
1,461 views
0 votes
1 answer

How to use SQLServer database with Sqoop?

First, download the SQLServer connector from Microsoft's ...READ MORE

May 15, 2019 in Big Data Hadoop by Karan
946 views
0 votes
1 answer

Problem connecting Sqoop to MySql

Perhaps, you have slightly misunderstood the method ...READ MORE

May 15, 2019 in Big Data Hadoop by Ali
2,790 views
0 votes
1 answer

How to connect Sqoop to mysql Database?

Hi. You can connect Sqoop to MySql ...READ MORE

May 15, 2019 in Big Data Hadoop by Tina
2,992 views
0 votes
1 answer

How do I add a column in ALTER TABLE in Hive?

Hi, Yes, we can add column inside a ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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57,895 views
0 votes
1 answer

Explain to me the relationship between Hadoop and Databases.

Okay, that's a lot of queries together, ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
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2,007 views
0 votes
1 answer

Can someone help with Hadoop installation Setup on Ubuntu?

I have understood your query, I have ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
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919 views
0 votes
1 answer

Why CREATE EXTERNAL keyword is used in Hive?

Hey, The create external keyword is used to create a ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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2,617 views
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Relation between LOAD operation and LOCAL keyword?

Hey, The Load operation is used to move the ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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880 views
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1 answer

What is DML in Hive?

Hi, DML is Data Manipulation Language. DML statements are ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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993 views
0 votes
1 answer

Help me out to download hadoop of a specific version

I understand your needs. I would suggest you ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
1,214 views
+1 vote
1 answer

Explain to me the difference between Name node and Secondary name node

First of all, let understand what is ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
2,213 views
0 votes
1 answer

Error: Execution Error, Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask. Permission denied:

Hey, The error you are getting because the ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
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6,189 views
0 votes
1 answer

What is the command to know the details of your data created in a table in Hive?

Hey, Yes, there is a way to check ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
• 65,730 points
1,841 views
0 votes
1 answer

How to see the content of a table in hive?

Hello, If you want to see the content ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
• 65,730 points
5,781 views