Not able to start datanode in Hadoop

+1 vote

I ran jps command to check running daemons. Datanode is not running. I am trying to start datanode but I am getting this error:

ERROR datanode.DataNode: java.io.IOException: Incompatible namespaceIDs in /tmp/hadoop/dfs/data: namenode namespaceID = 1428034692; datanode namespaceID = 482983118

How to solve this?

Dec 12, 2018 in Big Data Hadoop by slayer
• 29,230 points
101 views

1 answer to this question.

0 votes

Follow these steps:

  • Stop namenode
  • Delete the datanode directory in dfs.datanode.data.dir
  • Start namenode and datanode
answered Dec 12, 2018 by Omkar
• 68,160 points

Related Questions In Big Data Hadoop

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 29, 2018 in Big Data Hadoop by Ashish
• 2,630 points
554 views
0 votes
1 answer

Hadoop: Not able to start Namenode

Stop all running server 1) stop-all.sh Edit the ...READ MORE

answered Nov 8, 2018 in Big Data Hadoop by Omkar
• 68,160 points
313 views
0 votes
1 answer

Not able to start/stop hadoop daemons

If you were able to start the ...READ MORE

answered Dec 20, 2018 in Big Data Hadoop by Omkar
• 68,160 points
119 views
0 votes
11 answers
0 votes
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
• 10,760 points
3,516 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
• 10,760 points
431 views
+1 vote
11 answers

hadoop fs -put command?

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

answered Dec 7, 2018 in Big Data Hadoop by Aditya
17,854 views
0 votes
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
• 9,280 points
1,293 views
0 votes
1 answer

Not able to start jobtracker in hadoop

There is no jobtracker in hadoop 2.2.0 YARN framework. ...READ MORE

answered Dec 11, 2018 in Big Data Hadoop by Omkar
• 68,160 points
172 views
+2 votes
5 answers

Not able to start hadoop dfs

You can re-install openssh-client and openssh-server: $ sudo ...READ MORE

answered Oct 25, 2018 in Big Data Hadoop by Jino
319 views