Trending questions in Big Data Hadoop

+2 votes
11 answers

hadoop fs -put command?

Hi, You can create one directory in HDFS ...READ MORE

Mar 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 118,284 views
0 votes
0 answers

hadoop cluster Unable to start standby Namenode

we have HDP Hadoop cluster with two ...READ MORE

Feb 4, 2024 in Big Data Hadoop by koko
edited Mar 5, 2025 • 1,815 views
0 votes
0 answers

hadoop cluster + Unable to start standby Namenode

we have HDP Hadoop cluster with two ...READ MORE

Feb 4, 2024 in Big Data Hadoop by anonymous
edited Mar 5, 2025 • 1,711 views
+11 votes
11 answers

Hadoop “Unable to load native-hadoop library for your platform” warning

modify the glibc version.CentOS provides safe softwares ...READ MORE

Sep 10, 2018 in Big Data Hadoop by bug_seeker
 • 15,520 points • 77,644 views
0 votes
0 answers

I am getting this below error in cloudera environment when executing the batch processing code

java.lang.IllegalStateException: Received event is not valid: Closed at ...READ MORE

Jun 27, 2023 in Big Data Hadoop by syedsalahuddin
edited Mar 5, 2025 • 1,986 views
0 votes
5 answers

What is the HDFS command to list all the files in HDFS according to the timestamp?

You can try filter using value in ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Lenny
 • 77,565 views
0 votes
0 answers

Dj djdd dbd dbd jd dj dj dj dj

Jus eeiger eeiger ec hg hg hg ...READ MORE

May 26, 2023 in Big Data Hadoop by anonymous
edited Mar 5, 2025 • 1,639 views
0 votes
1 answer

ERROR 1142 (42000): SELECT command denied to user ''@'localhost' for table 'user'

Hey, This is a mysql command line error ...READ MORE

Jun 20, 2019 in Big Data Hadoop by Gitika
 • 65,730 points • 59,760 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
 • 65,730 points • 60,251 views
0 votes
0 answers

namenode not running

when i execute command start-all.sh it does ...READ MORE

Jan 25, 2023 in Big Data Hadoop by Pramod
edited Mar 4, 2025 • 1,628 views
0 votes
0 answers

sqoop export --connect jdbc:oracle:thin:@//dbtx07-scan7:9444/mydb --username nathan --P --table my_table --export-dir "/data/scoop_data/" -m -8 . I get the error attached.

READ MORE

Jan 17, 2023 in Big Data Hadoop by Nathan
 • 110 points
edited Mar 4, 2025 • 411 views
0 votes
11 answers

What is the default Namenode port of HDFS. Is it 8020 or 9000 or 50070?

8020/9000 hadoop namenode metadata port number. or ...READ MORE

Dec 31, 2018 in Big Data Hadoop by SM
 • 69,641 views
0 votes
1 answer

Copy files in different folders in Hadoop.

Hi@akhtar, You can use the cp command in ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
 • 95,460 points • 35,955 views
+1 vote
12 answers

How to check size of HDFS directory?

It is the same syntax. Use the ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Sowmya
 • 52,570 views
0 votes
0 answers

when i try to install hadoop 3.3.1 on ubuntu VM base on https://youtu.be/03uyN3WquIc

when i type cd /usr/local/hadoop/ in command i ...READ MORE

Nov 24, 2022 in Big Data Hadoop by Farah
edited Mar 4, 2025 • 686 views
0 votes
0 answers

Which is better linen or polyester?

Polyester, a synthetic, is a warmer fabric, ...READ MORE

Nov 16, 2022 in Big Data Hadoop by qiansifang
edited Mar 4, 2025 • 788 views
0 votes
0 answers

Sqoop error while trying to connect to MySql

Hello, I am running the below sqoop command ...READ MORE

Oct 2, 2022 in Big Data Hadoop by stepnabz
edited Mar 4, 2025 • 652 views
0 votes
0 answers

Cleaning Requirements for Hospital Curtain Fabric

Generally, hospital curtains are different from household ...READ MORE

Sep 26, 2022 in Big Data Hadoop by qiansifang
edited Mar 4, 2025 • 736 views
0 votes
0 answers

while deploying single node hadoop cluster, on final step of formatting namenode its showing command not found?

i have entered command hdfs dfs namenode ...READ MORE

Sep 5, 2022 in Big Data Hadoop by user
edited Mar 4, 2025 • 734 views
0 votes
1 answer

How to remove files from HDFS system?

Hi@akhtar, You will find rm command in your ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
 • 95,460 points • 29,584 views
0 votes
0 answers

The characteristics of flame retardant curtain fabric

Flame retardant curtain fabric is a product ...READ MORE

Jul 29, 2022 in Big Data Hadoop by qiansifang
edited Mar 4, 2025 • 728 views
0 votes
0 answers

the location of chunks aren't stored in non-volatile memory of GFS, how much time would it take for master to receive heartbeat messages and build the chunk locations table?

Since in GFS, we assume hardware fails ...READ MORE

Jul 23, 2022 in Big Data Hadoop by narayanan
edited Mar 4, 2025 • 740 views
0 votes
0 answers

EXCEL: How to automatically add serial number in Excel Table using formula that is immune to filtering / sorting?

I want to create an Excel Table ...READ MORE

Mar 24, 2022 in Big Data Hadoop by Edureka
 • 13,690 points • 4,704 views
0 votes
1 answer

What does Commodity Hardware in Hadoop World mean?

An important component of the Hadoop Ecosystem ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 8,778 views
0 votes
0 answers

how to remove this erroe

on every execution of commands  this error ...READ MORE

May 23, 2022 in Big Data Hadoop by anonymous
edited Mar 4, 2025 • 892 views
0 votes
1 answer

Which of the following is the daemon of Hadoop?

Hadoop is an open-source software framework for ...READ MORE

Dec 10, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 7,864 views
0 votes
1 answer

what does velocity in big data mean

Velocity in big data refers to the ...READ MORE

Feb 3, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 5,422 views
+1 vote
1 answer

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask

Hi@akhtar, This issue generally occurs when the memory ...READ MORE

Apr 17, 2020 in Big Data Hadoop by MD
 • 95,460 points • 33,690 views
+1 vote
3 answers

What is the best way to merge multi-part HDFS files into single file?

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

Jul 29, 2019 in Big Data Hadoop by Tina
 • 34,092 views
0 votes
0 answers

hiv table data load using .csv

this is my data in csv file ...READ MORE

May 21, 2022 in Big Data Hadoop by Srinivas
 • 120 points
edited Mar 4, 2025 • 442 views
0 votes
1 answer

What are the five v's of big data

Big data is a collection of data ...READ MORE

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 3,930 views
0 votes
1 answer

What was Hadoop named after?

The creator of Hadoop, Doug Cutting named ...READ MORE

Dec 10, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 5,588 views
0 votes
0 answers

keyword and sentiment analysis. map reduce mapper combiner and reducer program

task is to  analyse a range of ...READ MORE

Mar 23, 2022 in Big Data Hadoop by anonymous
edited Mar 4, 2025 • 706 views
0 votes
1 answer

what are the different features of big data analytics

What are the different features of big ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 2,647 views
0 votes
1 answer

What was Hadoop written in?

The Hadoop framework is mostly written in ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 5,134 views
0 votes
1 answer

what is big data hadoop

The Hadoop operating system is used to ...READ MORE

Feb 3, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 2,421 views
0 votes
1 answer

What is big data engineering

Data engineer roles have recently become more ...READ MORE

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 2,259 views
0 votes
1 answer

which of the following are hadoop built in counters?

MapReduce in Hadoop maintains some built-in counters ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 4,188 views
0 votes
1 answer

what are the different features of big data analytics

Features of big data analytics are- Velocity The pace ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 2,701 views
0 votes
1 answer

what is big data with examples

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 2,649 views
0 votes
1 answer

what is big data technology

Big data refers to extremely large, and ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 1,925 views
0 votes
1 answer

what does velocity in big data mean?

Velocity refers to the speed at which ...READ MORE

Dec 14, 2021 in Big Data Hadoop by Edureka
 • 12,730 points • 4,028 views
0 votes
1 answer

what is big data concept

Big data refers to extremely large, and ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 1,844 views
0 votes
1 answer

Which among the following are the Features of Hadoop?

Apache Hadoop is a collection of open-source ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 4,370 views
0 votes
1 answer

Which of the following is not a hadoop output format?

The Hadoop Output Format checks the Output ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 3,601 views
0 votes
1 answer

What is the extension of archive file created in Hadoop?

Hadoop archive is a facility which packs ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 4,110 views
0 votes
0 answers

Big Data Hadoop Course worth it or not?

Big Data Hadoop course is used for ...READ MORE

Feb 23, 2022 in Big Data Hadoop by qtsinfo
edited Mar 4, 2025 • 680 views
0 votes
1 answer

what is pig in big data?

Pig is a high-level programming language for ...READ MORE

Jan 7, 2022 in Big Data Hadoop by Edureka
 • 12,730 points • 2,684 views
0 votes
0 answers

what are the five v's of big data

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 1,432 views
0 votes
0 answers

what is big data with examples

what is big data with examples READ MORE

Feb 1, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 1,412 views
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