what is mapper and reducer in hadoop

Read about what is mapper and reducer in hadoop, The latest news, videos, and discussion topics about what is mapper and reducer in hadoop from alibabacloud.com

What is the difference between hadoop Distributed File System and openstack object storage?

Recently, someone mentioned a problem in Quora about the differences between the hadoop Distributed File System and openstack object storage. The original question is as follows: "Both HDFS (hadoop Distributed File System) and openstack Object Storage seem to share a similar objective: To achieve redundant, fast, and networked storage.

What is hadoop?

Hadoop is a distributed computing platform written in Java. It mainly includes a distributed file system HDFS and a mapreduce computing model. The two modules are designed for reference. Google's experience in Distributed Systems. "Hadoop is a free Java software framework that supports data intensive distributed appl

Total Pages: 2 1 2 Go to: Go

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.