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

What is money laundering and how is money laundered, Question: a) (i)...

Question: a) (i) Describe the entire process of credit card processing, identifying the different steps and parties involved. (ii) What are the roles of the acquiring ban

Nak free reliable data transfer protocol, Normal 0 false fal...

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

Operating system for clients, Operating system for Clients All of the ...

Operating system for Clients All of the clients running popular operating systems such as Microsoft Windows, Mac OS, UNIX, etc., could be used to function as backbone software

Simple Pendulum, Give me a wide idea about simple pendulum and its types wi...

Give me a wide idea about simple pendulum and its types with equation and tables as usual assignment?

State sonet frame, SONET Frame Can be viewed as a matrix of nine rows ...

SONET Frame Can be viewed as a matrix of nine rows of 90 octets every for a total of 810 octets.  A few used for control they aren't positioned at the beginning or end of the

Enumerate about the server modules, Enumerate about the server modules ...

Enumerate about the server modules WebDAV is one of the best-used server modules and many companies developing Intranet software or groupware as well as various publishing and

Network, network diagram which must include at least 2router,2bridge and 4 ...

network diagram which must include at least 2router,2bridge and 4 switches and must have different protocols and different cable...?

Why mac address called physical address, MAC address called Physical addres...

MAC address called Physical address Because it's not changeable

Wireless Networks, Is a complete OSI/TCPIP network architecture available i...

Is a complete OSI/TCPIP network architecture available in MATLAB?

What is the effect on the security of the password, Question: (a) What...

Question: (a) What is a script kiddie? Is it a significant security threat, and why? (b) Assume that UNIX uses the user login name in lieu of the traditional salt, what is

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