Datanode process not running in Hadoop

+2 votes

I have set up and configured a multi-node Hadoop cluster in my system

Now i try to start all daemons by running start-all.sh command, it shows all the processes initializing properly as follows:

starting namenode, logging to /usr/local/hadoop/libexec/../logs/hadoop1-root-namenode-hadoop.out
hadoop1: starting datanode, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-datanode-hadoop1.out
hadoop2: starting datanode, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-datanode-hadoop2.out
hadoop1: starting secondarynamenode, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-secondarynamenode-hadoop1.out
starting jobtracker, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-jobtracker-hadoop1.out
hadoop1: starting tasktracker, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-tasktracker-hadoop1.out
hadoop2: starting tasktracker, logging to /usr/local/hadoop/libexec/../logs/hadoop-root-tasktracker-hadoop2.out

However, when I type the jps command, I get the following output:

31057 NameNode
4001 RunJar
6182 RunJar
31328 SecondaryNameNode
31411 JobTracker
32119 Jps
31560 TaskTracker

Can someone tell me the solution for this?

Oct 22, 2018 in Big Data Hadoop by slayer
• 29,370 points

recategorized Oct 25, 2018 by Vardhan 18,288 views

4 answers to this question.

+1 vote

You need to do something like this:

  • bin/stop-all.sh (or stop-dfs.sh and stop-yarn.sh in the 2.x serie)
  • rm -Rf /app/tmp/hadoop-your-username/*
  • bin/hadoop namenode -format
answered Oct 22, 2018 by Omkar
• 69,230 points
+1 vote
Try to start the each process manually.
answered Oct 25, 2018 by Satish
Can you mention how to do that?

Yes. These are the command to manually start them:

./Stop-all.sh
./hadoop-daemon.sh start namenode
./hadoop-daemon.sh start datanode
./yarn-daemon.sh start resourcemanager
./yarn-daemon.sh start nodemanager
./mr-jobhistory-daemon.sh start historyserver

Hope this helped ..

This worked for me.. Thanks
+1 vote

First stop the process by running

Stop-all.sh

Then go to the path where you have installed Hadoop. In that, go to the bin folder and run

hadoop datanode

This should work

answered Oct 25, 2018 by Kiran
+1 vote

Run the following commands:

Stop-all.sh 
start-dfs.sh 
start-yarn.sh 
mr-jobhistory-daemon.sh start historyserver
answered Oct 25, 2018 by Anand

Related Questions In Big Data Hadoop

0 votes
1 answer

Datanode not running on Hadoop-2.7.3

Hey, I solved this problem by removing hadoop ...READ MORE

answered Jun 14, 2019 in Big Data Hadoop by Gitika
• 65,890 points
2,031 views
0 votes
1 answer

Not able to start Job History Server in Hadoop 2.8.1

You have to start JobHistoryServer process specifically ...READ MORE

answered Mar 30, 2018 in Big Data Hadoop by Ashish
• 2,650 points
2,508 views
0 votes
1 answer

Error running hadoop mapreduce in Python using Hadoop Streaming

Hi As you write mapper and reducer program  ...READ MORE

answered Jan 21, 2020 in Big Data Hadoop by anonymous
2,451 views
0 votes
3 answers

Cloudera Hadoop - Daemons not running

Please run below mentioned command. It will ...READ MORE

answered Aug 7, 2018 in Big Data Hadoop by Priyaj
• 58,100 points
2,603 views
+1 vote
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 11,380 points
10,912 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 11,380 points
2,446 views
+2 votes
11 answers

hadoop fs -put command?

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

answered Mar 16, 2018 in Big Data Hadoop by nitinrawat895
• 11,380 points
108,240 views
–1 vote
1 answer

Hadoop dfs -ls command?

In your case there is no difference ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by kurt_cobain
• 9,390 points
4,537 views
+1 vote
1 answer

Not able to start datanode in Hadoop

Follow these steps: Stop namenode Delete the datanode directory ...READ MORE

answered Dec 12, 2018 in Big Data Hadoop by Omkar
• 69,230 points
1,626 views
–1 vote
1 answer

Hadoop cluster is not running in vm

First check if all daemons are running: sudo ...READ MORE

answered Dec 26, 2018 in Big Data Hadoop by Omkar
• 69,230 points
731 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP