Distributed systems, Computer Networking

Assignment Help:

There are two dominant forms of building distributed systems: client-server systems, i.e. systems in which one machine acts as a server and act as clients; and peer-to-peer systems, where each host is both a server and a client. Standard web access follows the client-server model, and services such as BitTorrent follow the peer-to-peer model. However, in real life these are not completely distinct; for instance, internally Google applies some of each of these methodologies. Actually, client-server system are sometimes implemented as a chain of clients and servers, even though from the point of view of the client there's only one server.

Another possible building pattern is that in which the client communicates directly with only a server, but in the background its requests are actually processed by a cloud of machines, which actually resembles the way Google works internally. In this case, the cloud of machines  implements a system with lots of redundancy (e.g. via a big distributed ?le system). Some of the machines in the cloud hold data, and other machines hold meta-data. When some client requests, for instance, a ?le, the meta-data servers ?rst identify which other machines hold each piece of that ?le. This type of architecture represents the current trend being followed when creating large scale systems. So, in practice, we see that current successful large scale systems are a mix between client-server architectures and peer-to-peer systems, implemented with lots of storage and computational redundancy.


Related Discussions:- Distributed systems

Show the network layer in an internetwork, Q. Show the Network layer in an ...

Q. Show the Network layer in an internetwork? - Receives data from Transport layer - Responsible for creating Packet - Each packet contains - Universal Address of Sour

Explain about mesh topology, Q. Explain about Mesh Topology? - Dedicate...

Q. Explain about Mesh Topology? - Dedicated point-to-point links to each other device - n (n-1)/2 links an every device will have n-1 I/O ports - Advantages - Dedic

What is a lan, What is a LAN? LAN stands for Local Area Network. It ref...

What is a LAN? LAN stands for Local Area Network. It refers to the connection among computers and other network devices that are located within a small physical location.

Tcp, how tcp is redefined for wireless network

how tcp is redefined for wireless network

Input port - network layer and routing , Input Port The input  ports ...

Input Port The input  ports line  termination functions  and data link processing implement  the physical  and data  link layer  associated with an individual input  link to

Networks classification - point to point network , Normal 0 fal...

Normal 0 false false false EN-IN X-NONE X-NONE Networks classification

Commands and responses - application layer, Commands SMTP uses comma...

Commands SMTP uses commands  and response  to transfer  message between a client  and a  server.  Each  commands  or reply  is terminated by a two character ( carriage re

How intranet is different from internet, How Intranet is different from Int...

How Intranet is different from Internet? Generally an Intranet is different from an Internet in the following ways: i. Intranet is a network within the organisation whereas

What is medium access control of ethernet, What is Medium Access Control of...

What is Medium Access Control of Ethernet? The set of rules which make sure that each node in an Ethernet gets a fair amount of frame transmission opportunity, are known as the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd