Most voted questions in Big Data Hadoop

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How to append files from local system to HDFS?

Hi@akhtar, You can use appendToFile in your Hadoop ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
• 95,440 points
7,552 views
0 votes
1 answer

How to set replication factor in Hadoop?

Hi@akhtar, You can find setrep command in the ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
• 95,440 points
7,549 views
0 votes
1 answer

How to merge files in Hadoop?

Hi@akhtar, You can use getmerge command in Hadoop. ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
• 95,440 points
947 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
• 95,440 points
23,447 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
• 95,440 points
32,275 views
0 votes
1 answer

How to copy files from HDFS to local system?

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

Oct 1, 2020 in Big Data Hadoop by MD
• 95,440 points
4,015 views
0 votes
1 answer

Setting up Hadoop Multi-node cluster on windows 10 systems

Hi@Hassan, You can do it windows system as ...READ MORE

Oct 1, 2020 in Big Data Hadoop by MD
• 95,440 points
1,747 views
0 votes
1 answer

Adding Ranger KMS server using ambari

Hi@Shllpa, It is asking for admin credentials. Did ...READ MORE

Sep 28, 2020 in Big Data Hadoop by MD
• 95,440 points
478 views
0 votes
1 answer

touchz: io.bytes.per.checksum(512) and blockSize(256) do not match. blockSize should be a multiple of io.bytes.per.checksum

Hi@akhtar, The default the block size is 64MB ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
731 views
0 votes
1 answer

touchz: java.io.IOException: java.lang.IllegalArgumentException: Unexpected value for the block size

Hi@akhtar, You are trying to create a block ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
746 views
0 votes
1 answer

How to change block size in Hadoop dynamically?

Hi@akhtar, By default, the block size is 64MB ...READ MORE

Sep 25, 2020 in Big Data Hadoop by akhtar
• 38,240 points
2,694 views
0 votes
1 answer

How to configure Hadoop Client?

Hi@akhtar, To configure the Hadoop Client, you need ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
2,402 views
0 votes
1 answer

How to upload files in Hadoop Cluster?

Hi@akhtar, To upload a file in Hadoop Cluster, ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
1,909 views
0 votes
1 answer

Usage: java FsShell [-put <localsrc> ... <dst>]

Hi@akhtar, You are trying to upload your file ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
642 views
0 votes
1 answer

How to connect Hadoop WebUI?

Hi@akhtar, You can connect your Hadoop Cluster with ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
626 views
0 votes
1 answer

How to see the report of Hadoop Cluster from command line?

Hi@akhtar, You can see the report of Hadoop Cluster ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
2,955 views
0 votes
0 answers

Enable HA for mapreduce jobhistory server

Hi Team, From past few days I am ...READ MORE

Sep 23, 2020 in Big Data Hadoop by Shilpa S
• 450 points
1,176 views
0 votes
1 answer

How to format a Hadoop Master Node?

Hi@akhtar, To start the Hadoop NameNode, you need ...READ MORE

Sep 21, 2020 in Big Data Hadoop by MD
• 95,440 points
576 views
0 votes
1 answer

How to start Hadoop namenode service?

Hi@akhtar, If you configured your Hadoop master successfully, ...READ MORE

Sep 21, 2020 in Big Data Hadoop by MD
• 95,440 points
861 views
0 votes
1 answer

How to configure Hadoop namenode?

Hi@MD, To configure the Hadoop master node, you ...READ MORE

Sep 21, 2020 in Big Data Hadoop by akhtar
• 38,240 points
760 views
0 votes
1 answer

file /usr/bin from install of hadoop-1.2.1-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64

Hi@akhtar, Your Hadoop rpm is conflicting with some ...READ MORE

Sep 21, 2020 in Big Data Hadoop by MD
• 95,440 points
1,170 views
0 votes
1 answer

Urgently Want dataset

Hi, @Amit, Regarding your query on Datasets on (merchant ...READ MORE

Sep 21, 2020 in Big Data Hadoop by Gitika
• 65,910 points
628 views
0 votes
1 answer

How to merge two Spark DataFrames?

Hi@akhtar, You can perform join operation in spark. ...READ MORE

Sep 17, 2020 in Big Data Hadoop by MD
• 95,440 points
1,432 views
0 votes
1 answer

How to get resource utilized(memory and CPU) by each hive query which is running under single application Id?

Hi@sivachandran, You can monitor the metrics of your ...READ MORE

Sep 18, 2020 in Big Data Hadoop by MD
• 95,440 points
2,479 views
0 votes
1 answer

Can't Pass Java Agent in Hive

Hi@Som, You may forget to set the below ...READ MORE

Sep 15, 2020 in Big Data Hadoop by MD
• 95,440 points
681 views
0 votes
1 answer

I went to datadir/hdfs/nn/current but no folder called current

Hi@Wlssam, I am not able to understand your ...READ MORE

Sep 14, 2020 in Big Data Hadoop by MD
• 95,440 points
432 views
0 votes
1 answer

Monitoring Hadoop with Prometheus JMX

Hi@Som, This error is not related to Prometheus ...READ MORE

Sep 14, 2020 in Big Data Hadoop by MD
• 95,440 points
2,393 views
0 votes
1 answer

which version of sqoop should i use for hadoop 3.3.0?

Hi@shresht, This is just a warning. Did you ...READ MORE

Sep 7, 2020 in Big Data Hadoop by MD
• 95,440 points
2,015 views
0 votes
0 answers

which version of sqoop should i use with hadoop 3.3.0 ? [closed]

I am trying to install sqoop 1.4.7 ...READ MORE

Sep 6, 2020 in Big Data Hadoop by shresht
• 140 points

closed Sep 7, 2020 by Gitika 1,049 views
0 votes
1 answer

Multiple rows to columns in hive

Hi, You need to create your own customize ...READ MORE

Sep 4, 2020 in Big Data Hadoop by MD
• 95,440 points
2,593 views
0 votes
1 answer

SQOOP Import error - Invalid argurments

Hi@Vikramraj, You have passed wrong arguments in your ...READ MORE

Sep 1, 2020 in Big Data Hadoop by MD
• 95,440 points
844 views
0 votes
1 answer

Parquet File and ORC Table

Hi. @Vikramraj, Regarding your query, I would suggest ...READ MORE

Sep 1, 2020 in Big Data Hadoop by Gitika
• 65,910 points
682 views
0 votes
0 answers

How I can kill the jobs using jobID running in local mode with Hadoop

I am Running hadoop jobs in local ...READ MORE

Aug 26, 2020 in Big Data Hadoop by kamboj
• 140 points
2,109 views
0 votes
1 answer

Hadoop Small File

Hi@himanshu, To monitor your Namenode, you can create ...READ MORE

Aug 24, 2020 in Big Data Hadoop by MD
• 95,440 points
407 views
0 votes
2 answers
0 votes
1 answer

In my hadoop namenode is not starting

Hi@Aman, There may be many reasons behind this. ...READ MORE

Jul 22, 2020 in Big Data Hadoop by MD
• 95,440 points
1,089 views
0 votes
1 answer

How to download hadoop jar files for adding eclipse

Hi@Manl, To import jar file in your Eclipse ...READ MORE

Jul 20, 2020 in Big Data Hadoop by MD
• 95,440 points
5,521 views
0 votes
1 answer

input split and block size with examples

Hi@siva, Hadoop HDFS split large files into small ...READ MORE

Jul 13, 2020 in Big Data Hadoop by MD
• 95,440 points
1,344 views
0 votes
1 answer

I have to ingest in hadoop cluster large number of files for testing , what is the best way to do it?

Hi@sonali, It depends on what kind of testing ...READ MORE

Jul 8, 2020 in Big Data Hadoop by MD
• 95,440 points
1,027 views
0 votes
0 answers

Data import using sqoop to Hive

Hello Everyone, I am trying to import data ...READ MORE

Jul 3, 2020 in Big Data Hadoop by anonymous
• 120 points
955 views
0 votes
1 answer

How to get the column name printed in a file along with the output in Hive?

Hi @Neethu, Regarding your query, I would suggest ...READ MORE

Jul 2, 2020 in Big Data Hadoop by Gitika
• 65,910 points
861 views
0 votes
1 answer

Format HDFS Namenode Error: Could not find or load main class ”-Djava.library.path=.home.hadoop.hadoop-3.2.1.lib.native”

Hi@fwood, According to your configuration, you didn't set ...READ MORE

Jun 12, 2020 in Big Data Hadoop by MD
• 95,440 points
10,520 views
0 votes
0 answers
0 votes
1 answer

What are good big data courses for freshers?

Hi@akhtar, There are lots of Big Data courses ...READ MORE

May 15, 2020 in Big Data Hadoop by MD
• 95,440 points
917 views
0 votes
1 answer

What skills are required to be a Hadoop developer?

Hi@akhtar, To become a Hadoop developer, you should ...READ MORE

May 15, 2020 in Big Data Hadoop by MD
• 95,440 points
659 views
0 votes
1 answer

Which is the best online Big Data Hadoop course?

Hi@akhtar, As you are a beginner, you should ...READ MORE

May 15, 2020 in Big Data Hadoop by MD
• 95,440 points
710 views
0 votes
1 answer

Is there any alternative for edureka vm ?

you can use Hortonworks ! READ MORE

Nov 9, 2020 in Big Data Hadoop by Reza
790 views
0 votes
1 answer

getting error: -bash: syntax error near unexpected token `('

hi, you should give space between PigStorage and ...READ MORE

May 9, 2020 in Big Data Hadoop by anonymous
• 140 points
3,032 views
0 votes
1 answer

can we add hadoop in docker or online server or cloud

Hi@Rajan, If you are asking, can we configure hadoop ...READ MORE

May 1, 2020 in Big Data Hadoop by MD
• 95,440 points
685 views