What is Speculative Execution?

0 votes
I'm exploring Hadoop on my own and came across a term speculative execution.
Can anyone explain what it is?
Jun 18, 2018 in Big Data Hadoop by Data_Nerd
• 2,340 points
17 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
If a node is executing a task slower then the master node. Then there is needs to redundantly execute one more instance of the same task on another node. So the task finishes first will be accepted and the other one likely to be killed. This process is known as “speculative execution.”
Hope this helps.
answered Jun 18, 2018 by shams
• 3,580 points

Related Questions In Big Data Hadoop

0 votes
1 answer

What is Hadoop Speculative task execution?

One problem with the Hadoop system is ...READ MORE

answered Oct 3, 2018 in Big Data Hadoop by Frankie
• 9,570 points
45 views
0 votes
10 answers

What is the difference between Mongodb and Hadoop?

Apart from the similarity that they are ...READ MORE

answered Dec 6, 2018 in Big Data Hadoop by Deeraj
1,812 views
0 votes
2 answers

What is Hive? Is Hive a database?

Hey, HIVE:- Hive is an ETL (extract, transform, load) ...READ MORE

answered May 8 in Big Data Hadoop by Gitika
• 6,500 points
3,125 views
0 votes
12 answers

What is the difference between Hadoop/HDFS & HBase?

HDFS is a distributed file system whereas ...READ MORE

answered Apr 26 in Big Data Hadoop by Arihar
• 160 points
4,024 views
0 votes
1 answer

What is ClickStream Data Analysis

On a Web site, clickstream analysis (also ...READ MORE

answered Mar 21, 2018 in Big Data Hadoop by kurt_cobain
• 9,260 points
21 views
0 votes
1 answer

What is Hue?

As you said, Hue is a web ...READ MORE

answered Mar 22, 2018 in Big Data Hadoop by Ashish
• 2,630 points

edited Mar 22, 2018 by Ashish 227 views
0 votes
1 answer

What is the command to find the free space in HDFS?

You can use dfsadmin which runs a ...READ MORE

answered Apr 29, 2018 in Big Data Hadoop by Shubham
• 12,030 points
75 views
0 votes
1 answer

How to find the used cache in HDFS

hdfs dfsadmin -report This command tells fs ...READ MORE

answered May 4, 2018 in Big Data Hadoop by Shubham
• 12,030 points
117 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
1,635 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
7,933 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.