Trending questions in Big Data Hadoop

+1 vote
11 answers

hadoop fs -put command?

put syntax: put <localSrc> <dest> copy syntax: copyF ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Aditya
36,667 views
+10 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
• 15,480 points
29,689 views
0 votes
1 answer

How to configure Hadoop namenode?

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

1 day ago in Big Data Hadoop by akhtar
• 24,570 points
11 views
0 votes
1 answer

How to format a Hadoop Master Node?

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

1 day ago in Big Data Hadoop by MD
• 55,020 points
10 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

1 day ago in Big Data Hadoop by MD
• 55,020 points
9 views
0 votes
1 answer

How to start Hadoop namenode service?

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

1 day ago in Big Data Hadoop by MD
• 55,020 points
5 views
0 votes
1 answer

Urgently Want dataset

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

16 hours ago in Big Data Hadoop by Gitika
• 36,850 points
27 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

4 days ago in Big Data Hadoop by MD
• 55,020 points
69 views
0 votes
1 answer

How to merge two Spark DataFrames?

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

4 days ago in Big Data Hadoop by MD
• 55,020 points
21 views
0 votes
1 answer

Can't Pass Java Agent in Hive

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

6 days ago in Big Data Hadoop by MD
• 55,020 points
18 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 in Big Data Hadoop by MD
• 55,020 points
20 views
0 votes
1 answer

Monitoring Hadoop with Prometheus JMX

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

Sep 14 in Big Data Hadoop by MD
• 55,020 points
35 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 in Big Data Hadoop by MD
• 55,020 points
59 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 in Big Data Hadoop by shresht
• 140 points

closed Sep 7 by Gitika 41 views
0 votes
1 answer

Multiple rows to columns in hive

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

Sep 4 in Big Data Hadoop by MD
• 55,020 points
49 views
0 votes
1 answer

Parquet File and ORC Table

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

Sep 1 in Big Data Hadoop by Gitika
• 36,850 points
72 views
0 votes
1 answer

SQOOP Import error - Invalid argurments

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

Sep 1 in Big Data Hadoop by MD
• 55,020 points
33 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 in Big Data Hadoop by kamboj
• 140 points
69 views
0 votes
1 answer

Hadoop Small File

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

Aug 24 in Big Data Hadoop by MD
• 55,020 points
42 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 in Big Data Hadoop by MD
• 55,020 points
82 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 in Big Data Hadoop by MD
• 55,020 points
144 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 in Big Data Hadoop by MD
• 55,020 points
1,486 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 in Big Data Hadoop by MD
• 55,020 points
81 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 7 in Big Data Hadoop by MD
• 55,020 points
149 views
0 votes
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 in Big Data Hadoop by MD
• 55,020 points
3,484 views
0 votes
0 answers

Data import using sqoop to Hive

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

Jul 3 in Big Data Hadoop by anonymous
• 120 points
154 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 in Big Data Hadoop by Gitika
• 36,850 points
117 views
0 votes
0 answers
0 votes
1 answer

nodetool: Failed to connect to '127.0.0.1:7199' - ConnectException: 'Connection refused (Connection refused)'.

Hi@akhtar, To avoid this error, You have to ...READ MORE

Apr 1 in Big Data Hadoop by MD
• 55,020 points
2,631 views
+1 vote
1 answer

How to change columname in a dataframe

Hi@shanmugam, You can change your column by using ...READ MORE

May 21 in Big Data Hadoop by MD
• 55,020 points
214 views
+1 vote
1 answer

starting hive gave me exception

Hi@Hans, You may got this error, if you ...READ MORE

May 20 in Big Data Hadoop by MD
• 55,020 points
220 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
27,553 views
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 in Big Data Hadoop by MD
• 55,020 points
234 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 in Big Data Hadoop by MD
• 55,020 points
230 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 in Big Data Hadoop by MD
• 55,020 points
174 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 in Big Data Hadoop by anonymous
• 140 points
507 views
0 votes
0 answers

Is there any alternative for edureka vm ?

Hi there, Thank you for taking your time ...READ MORE

May 10 in Big Data Hadoop by Preetham
• 120 points
128 views
0 votes
1 answer

Error while starting the daemon process in windows 10

Hi@Arun, By default, the parameter "dfs.datanode.failed.volumes.tolerated" is set ...READ MORE

Apr 20 in Big Data Hadoop by MD
• 55,020 points
969 views
0 votes
1 answer

Distcp From Local to HDFS giving error file not found

Hey, @Amey, This is probably because of a ...READ MORE

Apr 29 in Big Data Hadoop by Gitika
• 36,850 points
245 views
0 votes
1 answer

Error: Couldn't properly initialize access to HDFS internals. Please update your WAL Provider to not make use of the 'asyncfs' provider.

Hi@akhtar, I think you are trying to use AsyncFSWAL for HBase-2.x as ...READ MORE

Apr 30 in Big Data Hadoop by MD
• 55,020 points
129 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 in Big Data Hadoop by MD
• 55,020 points
111 views
0 votes
1 answer
0 votes
1 answer
0 votes
11 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
22,563 views
0 votes
1 answer

kernel: java: page allocation failure. order:4, mode:0x20

Hi@akhtar, You may got this error because of ...READ MORE

Apr 30 in Big Data Hadoop by MD
• 55,020 points
109 views