Trending questions in Big Data Hadoop

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
 • 65,730 points • 10,430 views
+1 vote
2 answers

Hadoop Hive: Not recognizing alias named in select part?

You can not use column aliases in ...READ MORE

Nov 26, 2019 in Big Data Hadoop by anonymous
 • 11,849 views
0 votes
1 answer

How does data gets split in Sqoop?

I will drop the answer in the ...READ MORE

Jul 16, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 9,474 views
+1 vote
1 answer

what is splunk?

Splunk is a software platform to search, ...READ MORE

Jan 24, 2020 in Big Data Hadoop by Vardhan
 • 1,149 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Namenode is the node in the Hadoop ...READ MORE

Feb 4, 2019 in Big Data Hadoop by Kanika
 • 22,517 views
0 votes
1 answer

Sqoop could not load db driver class

Hello, Have you tried to put the both ...READ MORE

Dec 13, 2019 in Big Data Hadoop by Alexandru
 • 510 points • 3,754 views
+2 votes
5 answers

How to transpose/pivot data in hive?

Below is also a way for Pivot SELECT ...READ MORE

Oct 12, 2018 in Big Data Hadoop by Rahul
 • 21,065 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
 • 11,605 views
0 votes
1 answer

java.lang.IllegalArgumentException: Unable to instantiate SparkSession with Hive support because Hive classes are not found.

 Try using the below build.sbt, code.scala and command ...READ MORE

Jul 30, 2019 in Big Data Hadoop by Kishan
 • 8,285 views
0 votes
1 answer

Sqoop: ERROR tool.BaseSqoopTool: Error parsing arguments

There are two mistakes in the command ...READ MORE

Aug 2, 2019 in Big Data Hadoop by Kunal
 • 8,124 views
0 votes
1 answer

Read Parquet file using hdfs dfs -cat command

When you try to read a parquet ...READ MORE

May 24, 2019 in Big Data Hadoop by Calvin
 • 11,084 views
0 votes
1 answer

Hive: Assign subquery to variable

Refer to this example: Step1: Check table test1 ...READ MORE

Jul 30, 2019 in Big Data Hadoop by Tina
 • 8,176 views
0 votes
2 answers

Hive update and delete limitations

Vinyl-like crackle sounds. And what is my ...READ MORE

May 3, 2020 in Big Data Hadoop by Carter
 • 140 points • 6,482 views
0 votes
1 answer

Namespace in HDFS?

Basically when we say Namespace we mean ...READ MORE

Apr 8, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 12,885 views
0 votes
1 answer

How to create sequential znode in zookeeper?

Hey, To create a Sequential znode, add -s flag as shown ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 10,706 views
0 votes
1 answer

Converting CSV files to Parquet

--Create Hive external Table for existing data CREATE ...READ MORE

Jul 30, 2019 in Big Data Hadoop by Yogi
 • 7,955 views
0 votes
1 answer

How to replace characters in string in hive?

You can do it using regexp_replace. This is ...READ MORE

Nov 30, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 18,292 views
0 votes
1 answer

What is "java.sql.SQLException: org.apache.thrift.transport.TTransportException" in Hive?

This particular exception is related to Hive logs. ...READ MORE

Jul 30, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 7,664 views
0 votes
1 answer

How can we use IN/EXIST operator in Hive?

Hey, Yes, now Hive supports IN or EXIST, ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 9,421 views
0 votes
3 answers

Spark Scala: How to list all folders in directory

val spark = SparkSession.builder().appName("Demo").getOrCreate() val path = new ...READ MORE

Dec 5, 2018 in Big Data Hadoop by Mark
 • 18,546 views
+1 vote
1 answer

Namenode v/s Secondary namenode

Name Node is a primary node in ...READ MORE

Sep 9, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 5,799 views
+1 vote
1 answer

" org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Permissions incorrectly set for dir " problem

This error is caused when hadoop tries ...READ MORE

Sep 9, 2019 in Big Data Hadoop by Kumar
 • 5,786 views
+1 vote
0 answers

Hadoop Mapreduce : Null Pointer Exception

While running the below program, I got ...READ MORE

Dec 6, 2019 in Big Data Hadoop by Tarun
 • 160 points • 2,008 views
0 votes
1 answer

How to remove a Znode in Zookeeper?

Hey, Removes a specified znode and recursively all ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 9,663 views
0 votes
1 answer

Unzip files in hdfs

To unzip a gzipped (or bzipped) file, ...READ MORE

Jul 31, 2019 in Big Data Hadoop by Joe
 • 6,897 views
0 votes
1 answer

Why is Hive called as Data Warehouse?

Hive is a data warehouse infrastructure tool ...READ MORE

Jul 26, 2019 in Big Data Hadoop by Joshua
 • 7,095 views
0 votes
1 answer

How to run mapreduce program in terminal?

You can reference the below steps: Step 1: ...READ MORE

Jan 31, 2019 in Big Data Hadoop by Srishti
 • 14,587 views
+1 vote
1 answer

bash: sbin/hadoop: No such file or directory

The hadoop command is not present in ...READ MORE

Sep 18, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 4,511 views
0 votes
1 answer

Failed to start namenode in hadoop

Change your following properties in hdfs-site.xml <property> ...READ MORE

Jan 12, 2019 in Big Data Hadoop by Omkar
 • 69,180 points • 15,261 views
0 votes
1 answer

How to see the version of Zookeeper I am running?

Hey, First, you need to have a running ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 9,174 views
0 votes
3 answers

How to change the delimiter in Sqoop?

--fields-terminated-by <char> READ MORE

Jun 25, 2019 in Big Data Hadoop by anonymous
 • 11,228 views
0 votes
2 answers

Difference between Hadoop 1 and 2

Hadoop V.1.x Components Apache Hadoop V.1.x has the ...READ MORE

Aug 28, 2018 in Big Data Hadoop by zombie
 • 3,790 points • 20,963 views
+2 votes
0 answers

Hello, trying to install Hadoop on single node. Error: in screenshot

READ MORE

Nov 20, 2019 in Big Data Hadoop by faris
 • 140 points • 1,454 views
+1 vote
1 answer

datanode decomissioning

You have set the replication factor to ...READ MORE

Nov 28, 2019 in Big Data Hadoop by Rahul
 • 1,008 views
0 votes
10 answers

Difference between single node & pseudo-distributed mode in Hadoop?

Single node is used for debugging the ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Mahisha
 • 20,494 views
0 votes
2 answers

Hadoop error: Input path does not exist

I was able to fix the issue. ...READ MORE

Jan 13, 2019 in Big Data Hadoop by Ponezhil Ramu
 • 15,530 views
0 votes
1 answer

Hadoop hdfs "permission denied" error when I try to make new directory

This is because you dont have enough ...READ MORE

Nov 22, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 16,826 views
0 votes
2 answers

How can I list NameNode & DataNodes from any machine in the Hadoop cluster?

You can browse hadoop page from any ...READ MORE

Jan 23, 2020 in Big Data Hadoop by MD
 • 95,460 points • 12,261 views
+1 vote
0 answers

Oozie filter all coordinator jobs based on nominalTime

Hi Edureka team. I would like to ...READ MORE

Nov 12, 2019 in Big Data Hadoop by Thayanban
 • 130 points • 1,484 views
0 votes
1 answer

Sqoop: ERROR tool.BaseSqoopTool: Unrecognized argument

The command you are executing is slightly ...READ MORE

Aug 1, 2019 in Big Data Hadoop by Sam
 • 5,703 views
0 votes
1 answer

How setrep command is used and what is the description to this?

Hi, This HDFS command is used to change ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 7,510 views
0 votes
1 answer

Error: Container is running beyond Memory Limits

I had a similar problem while I was working ...READ MORE

Jun 20, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 7,309 views
0 votes
1 answer

Sqoop - moving data from DB2 to HDFS ( hive partition table)

sqoop import --driver com.ibm.db2.jcc.DB2Driver --connect jdbc:db2://db2.my.com:50000/databaseName --username ...READ MORE

Aug 9, 2019 in Big Data Hadoop by Payal
 • 4,980 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 • 6,781 views
0 votes
1 answer

How to Access Hive via Python?

The easiest way is to use PyHive. To ...READ MORE

Oct 9, 2018 in Big Data Hadoop by Omkar
 • 69,180 points • 18,082 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
 • 6,377 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
 • 65,730 points
edited Jun 26, 2019 by Gitika • 6,679 views
0 votes
2 answers

Hadoop is not able to find jps command

jps is actually not a command of ...READ MORE

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 18,115 views
+1 vote
0 answers

Class not found exception in wordcount program in mapreduce

import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import java.io.IOException; import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; import org.apache.hadoop.mapreduce.*; import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; import ...READ MORE

Oct 3, 2019 in Big Data Hadoop by Tarun
 • 160 points
edited Oct 3, 2019 by Omkar • 2,308 views
0 votes
1 answer

How to import data to hbase database?

There are 3 Ways to Load Data ...READ MORE

Jul 10, 2019 in Big Data Hadoop by Karan Reddy
 • 5,975 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.