Hadoop backup and recovery tool and guidance

0 votes

I am new to hadoop need to learn details about backup and recovery. I have revised oracle backup and recovery will it help in hadoop?

Jan 4, 2019 in Big Data Hadoop by Neha
• 6,300 points
393 views

1 answer to this question.

0 votes

There are a few options for backup and recovery. As s.singh points out, data replication is not DR.

HDFS supports snapshotting. This can be used to prevent user errors, recover files, etc. That being said, this isn't DR in the event of a total failure of the Hadoop cluster. (http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsSnapshots.html)

Your best bet is keeping off-site backups. This can be to another Hadoop cluster, S3, etc and can be performed using distcp. (http://hadoop.apache.org/docs/stable1/distcp2.html), (https://wiki.apache.org/hadoop/AmazonS3)

Here is a Slideshare by Cloudera discussing DR (http://www.slideshare.net/cloudera/hadoop-backup-and-disaster-recovery)

answered Jan 4, 2019 by Frankie
• 9,830 points

Related Questions In Big Data Hadoop

0 votes
10 answers

What is the difference between Mongodb and Hadoop?

MongoDB is a NoSQL database, whereas Hadoop is ...READ MORE

answered Jun 20, 2018 in Big Data Hadoop by jenny_code
9,698 views
0 votes
1 answer

How can I download only hdfs and not hadoop?

No, you cannot download HDFS alone because ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by nitinrawat895
• 11,380 points
600 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
26,930 views
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 22, 2018 in Big Data Hadoop by Shubham
• 13,490 points
1,671 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
9,111 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
1,644 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
83,198 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
3,489 views
0 votes
1 answer
0 votes
1 answer

Want to have an idea on Hadoop Machine Learning and Data Mining project.

You haven't written anything about your interest. ...READ MORE

answered Aug 14, 2018 in Big Data Hadoop by Frankie
• 9,830 points
774 views
webinar REGISTER FOR FREE WEBINAR X
Send OTP
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP