JobTracker Task Scheduling

0 votes
Can anyone explain how JobTracker schedules a task ?
Jun 5, 2018 in Big Data Hadoop by Data_Nerd
• 2,340 points
53 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
The task tracker send out heartbeat messages to Jobtracker usually every few minutes to make sure that JobTracker is active and functioning.  The message also informs JobTracker about the number of available slots, so the JobTracker can stay upto date with where in the cluster work can be delegated.
answered Jun 5, 2018 by kurt_cobain
• 9,260 points

Related Questions In Big Data Hadoop

0 votes
1 answer

Job and Task Scheduling In Hadoop

I  n case of fair scheduler, when there is ...READ MORE

answered Oct 31, 2018 in Big Data Hadoop by Neha
• 6,140 points
33 views
0 votes
1 answer

start-dfs.sh command is not starting Hadoop JobTracker & TaskTracker

start-dfs.sh script, only starts the HDFS daemons. ...READ MORE

answered Apr 15, 2018 in Big Data Hadoop by Shubham
• 12,230 points
440 views
0 votes
1 answer

Does setup & clean methods in Hadoop MapReduce is executed after each task?

Setup & cleanup methods are executed after ...READ MORE

answered May 8, 2018 in Big Data Hadoop by Shubham
• 12,230 points
200 views
0 votes
1 answer

Difference between a failed task attempt and a killed task attempt

Let me explain you the difference between ...READ MORE

answered Jul 24, 2018 in Big Data Hadoop by nitinrawat895
• 9,030 points
167 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
1,666 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
8,076 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
566 views
0 votes
1 answer
0 votes
1 answer

Hadoop: TaskTracker and JobTracker don't start with start-dfs.sh

You must run the start-dfs..sh too. So when ...READ MORE

answered Apr 3, 2018 in Big Data Hadoop by kurt_cobain
• 9,260 points
89 views
0 votes
1 answer

Map and Reduce task memory settings in Hadoop YARN

It's preferable and generally, it is recommended ...READ MORE

answered Apr 18, 2018 in Big Data Hadoop by kurt_cobain
• 9,260 points
48 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.