JobTracker Task Scheduling

0 votes
Can anyone explain how JobTracker schedules a task ?
Jun 5, 2018 in Big Data Hadoop by Data_Nerd
• 2,360 points
89 views

1 answer to this question.

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
• 6,280 points
178 views
0 votes
2 answers

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

On which version of hadoop do you ...READ MORE

answered Jul 24 in Big Data Hadoop by Lokesh Singh
772 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
• 13,310 points
371 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
• 10,710 points
487 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
• 10,710 points
3,348 views
0 votes
10 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
16,590 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
1,211 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
220 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
93 views