Backup and Checkpoint Node

0 votes
Is there a difference in Backup and checkpoint Node?
Help Needed.
Jul 31, 2018 in Big Data Hadoop by Data_Nerd
• 2,340 points
32 views

1 answer to this question.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
0 votes
Checkpoint Node keeps track of the latest checkpoint in a directory that has same structure as that of NameNode’s directory. Checkpoint node creates checkpoints for the namespace at regular intervals by downloading the edits and fsimage file from the NameNode and merging it locally. The new image is then again updated back to the active NameNode.

Whereas Backup Node also providecheckpointingng functionality like that of the checkpoint node but it also maintains its up-to-date in-memory copy of the file system namespace that is in sync with the active NameNode.
answered Jul 31, 2018 by kurt_cobain
• 9,260 points

Related Questions In Big Data Hadoop

0 votes
1 answer

How to install and configure a multi-node Hadoop cluster?

I would recommend you to install Cent ...READ MORE

answered Mar 21, 2018 in Big Data Hadoop by Shubham
• 12,150 points
446 views
0 votes
1 answer

Understanding Hadoop Master Node, Slave Node and Data Node.

The NameNode and the JobTracker are single ...READ MORE

answered Sep 6, 2018 in Big Data Hadoop by Frankie
• 9,570 points
252 views
0 votes
1 answer

Hadoop: “Unhealthy Node local-dirs and log-dirs are bad”

You can increase the threshold in yarn-site.xml <property> ...READ MORE

answered Nov 8, 2018 in Big Data Hadoop by Omkar
• 65,840 points
271 views
0 votes
1 answer

Hadoop backup and recovery tool and guidance

There are a few options for backup ...READ MORE

answered Jan 3 in Big Data Hadoop by Frankie
• 9,570 points
24 views
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
• 9,030 points
1,651 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
• 9,030 points
130 views
0 votes
10 answers

hadoop fs -put command?

copy command can be used to copy files ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Sujay
7,991 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
• 9,260 points
555 views
0 votes
1 answer

Checkpoint Node in Hadoop

Checkpoint Node keeps track of the latest ...READ MORE

answered Jul 31, 2018 in Big Data Hadoop by kurt_cobain
• 9,260 points
58 views
+2 votes
10 answers

Is there any difference between “hdfs dfs” and “hadoop fs” shell commands?

Yes, there's a difference between hadoop fs and ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Kunal
7,360 views

© 2018 Brain4ce Education Solutions Pvt. Ltd. All rights Reserved.
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.