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

Define client and server, Question 1 Define client and server. Explain the...

Question 1 Define client and server. Explain the Client server model Question 2 What is a Mainframe System? Write down the features of Mainframe System Question 3

Illustrate the advantages of VLANs, Q. Illustrate the Advantages of VLANs? ...

Q. Illustrate the Advantages of VLANs? - Cost and time reduction in moving stations from one group to another - Creation of virtual workgroups - Security Position of

What is man, What is MAN? MAN - Metropolitan Area Networks. MAN is b...

What is MAN? MAN - Metropolitan Area Networks. MAN is bigger than a LAN and as its name implies, covers the area of a single city. MANs rarely extend beyond 100 KM and frequ

Video encoder, How to start the video encoding in asp.net with c#

How to start the video encoding in asp.net with c#

Explain the term dimensionality of interconnection network, Dimensionality ...

Dimensionality of Interconnection Network Dimensionality refers the arrangement of processing elements or nodes in an interconnection network. In linear network or single dimen

What is multimode graded-index fiber, Q. What is Multimode Graded-Index Fib...

Q. What is Multimode Graded-Index Fiber? - Ever since the core density decreases with distance from the centre the light beams refract into a curve - Eliminates problem with

Source independence, Next hop to receiver does not relay on source of packe...

Next hop to receiver does not relay on source of packet. This phenomenon is known 'Source Independence'. It has various benefits. It gives efficient and fast routing. Packet switch

Redhat, short note on redhat updation details? why redhat is popular?

short note on redhat updation details? why redhat is popular?

Explain the OSI Model Facts, OSI Model Facts The OSI model classifies a...

OSI Model Facts The OSI model classifies and organizes the methods that hosts perform to maintain data for transport across the network. You should be familiar with the OSI m

Define choke packet and implicit congestion signalling, Define Choke packet...

Define Choke packet and Implicit congestion signalling Choke packet: A choke packet is a control packet produced at a congested node and transmitted back to a source node to co

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