Submitting MapReduce job using jobConf object vs job object

0 votes

I am new to Hadoop & I am a bit confused about how to submit a job to Hadoop. Earlier I was submitting the job using the following command:

JobClient.runJob(jobconf);

But while going through an online tutorial, I found out that they are submitting the job using the below command:

Configuration conf = getConf();
Job job = new Job(conf, "secondary sort");

Can anyone explain me what is the difference between jobconf & job object? Which is the right way of submitting the job?

May 4, 2018 in Big Data Hadoop by nitinrawat895
• 9,350 points
197 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

Both JobConf & Job objects are used for configuring & submitting the job. You can also control the execution using the objects. The only difference between them is JobConf object belong to the org.apache.hadoop.mapred package, which is the deprecated API, while Job object is from org.apache.hadoop.mapreduce package, which is the new API.

I would recommend using the new API.

You can refer the following link for the official documentation.

JobConf: https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/mapred/JobConf.html

Job: https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/mapreduce/Job.html
 

answered May 4, 2018 by Shubham
• 12,790 points

Related Questions In Big Data Hadoop

0 votes
1 answer

Hadoop MapReduce vs MongoDB MapReduce

Hadoop vs MongoDB MR: 1) Hadoop's MR can ...READ MORE

answered Mar 26, 2018 in Big Data Hadoop by nitinrawat895
• 9,350 points
106 views
0 votes
1 answer

How hadoop mapreduce job is submitted to worker nodes?

Alright, I think you are basically looking ...READ MORE

answered Mar 29, 2018 in Big Data Hadoop by Ashish
• 2,630 points
1,301 views
0 votes
0 answers

Error running hadoop mapreduce in Python using Hadoop Streaming

I was trying a sample mapredyce code ...READ MORE

Apr 2, 2018 in Big Data Hadoop by nitinrawat895
• 9,350 points
65 views
0 votes
1 answer
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
• 9,350 points
1,825 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
9,031 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
647 views
0 votes
1 answer
0 votes
1 answer

How do I parse pdf file using MapReduce?

If you have your own custom InputFormat(WholeFileInputFormat). ...READ MORE

answered Apr 11, 2018 in Big Data Hadoop by Shubham
• 12,790 points
126 views
0 votes
1 answer

Getting error in MapReduce job.setInputFormatClass

In old Hadoop API(i.e. below Hadoop 0.20.0), ...READ MORE

answered Apr 15, 2018 in Big Data Hadoop by Shubham
• 12,790 points
248 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.