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
• 2,360 points
34 views

1 answer to this question.

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
• 9,810 points
63 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
2,435 views
0 votes
3 answers

What is Hive? Is Hive a database?

Hive is a data Warehouse infrastructure/system built ...READ MORE

answered Jul 1 in Big Data Hadoop by Ved Gupta
5,785 views
0 votes
13 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
8,516 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
• 9,240 points
39 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 587 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
• 13,290 points
175 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
• 13,290 points
214 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
• 10,670 points
2,702 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
13,450 views