Difference between Application Master and Application Manager

0 votes

In case of MRv2.. what's the difference between Application Manager and Application Master in YARN?

Apr 10, 2018 in Big Data Hadoop by kurt_cobain
• 9,350 points
14,637 views

1 answer to this question.

0 votes

The Application Master is responsible for the execution of a single application. It asks for containers from the Resource Scheduler (Resource Manager) and executes specific programs (e.g., the main of a Java class) on the obtained containers. The Application Master knows the application logic and thus it is framework-specific. The MapReduce framework provides its own implementation of an Application Master.

The Resource Manager is a single point of failure in YARN. Using Application Masters, YARN is spreading over the cluster the metadata related to running applications. This reduces the load of the Resource Manager and makes it fast recoverable.

Through below image, you can easily relate the working of application master and application manager.

image

Application manager is responsible for maintaining a list of submitted application.After application is submitted by the client, application manager firstly validates whether application requirement of resources for its application master can be satisfied or not.If enough resources are available then it forwards the application to scheduler otherwise application will be rejected.It also make sure that no other application is submitted with same application id.

answered Apr 10, 2018 by nitinrawat895
• 11,380 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
12,144 views
+2 votes
10 answers

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

hadoop fs <args> fs is used for generic ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by anonymous
34,119 views
0 votes
1 answer

What is difference between Oozie workflow, coordinator and bundle ?

Workflow does not have time specifications to ...READ MORE

answered Mar 29, 2018 in Big Data Hadoop by kurt_cobain
• 9,350 points
3,131 views
0 votes
1 answer

What's the difference between Hadoop and NoSQL ?

Let's start with the definitions Hadoop is an ...READ MORE

answered Apr 2, 2018 in Big Data Hadoop by kurt_cobain
• 9,350 points
6,735 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
• 9,350 points
4,629 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
11,057 views
0 votes
1 answer

How to get started with Hadoop?

Well, hadoop is actually a framework that ...READ MORE

answered Mar 21, 2018 in Big Data Hadoop by coldcode
• 2,090 points
1,198 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
108,979 views
0 votes
1 answer
0 votes
1 answer

Difference between Hadoop file system and Linux

Yes, to a certain extent we can ...READ MORE

answered Apr 20, 2018 in Big Data Hadoop by nitinrawat895
• 11,380 points
4,006 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