Difference between revisions of "Pull technology"
Karl Jones (Talk | contribs) (Created page with "'''Pull coding''' or '''client pull''' is a style of network communication where the initial request for data originates from the client, and then is responded to by the serve...") |
Karl Jones (Talk | contribs) |
||
| (One intermediate revision by the same user not shown) | |||
| Line 9: | Line 9: | ||
A push can also be simulated using multiple pulls within a short amount of time. For example, when pulling POP3 email messages from a server, a client can make regular pull requests every few minutes. To the user, the email then appears to be pushed, as emails appear to arrive close to real-time. The tradeoff is this places a heavier load on both the server and network in order to function correctly. | A push can also be simulated using multiple pulls within a short amount of time. For example, when pulling POP3 email messages from a server, a client can make regular pull requests every few minutes. To the user, the email then appears to be pushed, as emails appear to arrive close to real-time. The tradeoff is this places a heavier load on both the server and network in order to function correctly. | ||
| − | Most web feeds, such as RSS are technically pulled by the client. With RSS, the user's RSS reader polls the server periodically for new content; the server does not send information to the client unrequested. This continual polling is inefficient and has contributed to the shutdown or reduction of several popular RSS feeds that could not handle the bandwidth. | + | Most [[Web feed|web feeds]], such as [[RSS]], are technically pulled by the client. With RSS, the user's RSS reader polls the server periodically for new content; the server does not send information to the client unrequested. This continual polling is inefficient and has contributed to the shutdown or reduction of several popular RSS feeds that could not handle the bandwidth. |
For solving this problem, the PubSubHubbub protocol as another example of a push code was devised. | For solving this problem, the PubSubHubbub protocol as another example of a push code was devised. | ||
| Line 20: | Line 20: | ||
== External links == | == External links == | ||
| − | * [ Pull technology] @ Wikipedia.org | + | * [https://en.wikipedia.org/wiki/Pull_technology Pull technology] @ Wikipedia.org |
[[Category:Computing]] | [[Category:Computing]] | ||
[[Category:Web design and development]] | [[Category:Web design and development]] | ||
Latest revision as of 21:31, 6 September 2016
Pull coding or client pull is a style of network communication where the initial request for data originates from the client, and then is responded to by the server.
Description
The reverse is known as push technology, where the server pushes data to clients. Usually, customers will look for a site and visit only if it provides helpful and attractive content to display. The pull code is effective and economical when advertising to open, unidentified potential customers world wide. It is more effective for the customer when he searches for a specific item.
Pull requests form the foundation of network computing, where many clients request data from centralised servers. Pull is used extensively on the Internet for HTTP page requests from websites.
A push can also be simulated using multiple pulls within a short amount of time. For example, when pulling POP3 email messages from a server, a client can make regular pull requests every few minutes. To the user, the email then appears to be pushed, as emails appear to arrive close to real-time. The tradeoff is this places a heavier load on both the server and network in order to function correctly.
Most web feeds, such as RSS, are technically pulled by the client. With RSS, the user's RSS reader polls the server periodically for new content; the server does not send information to the client unrequested. This continual polling is inefficient and has contributed to the shutdown or reduction of several popular RSS feeds that could not handle the bandwidth.
For solving this problem, the PubSubHubbub protocol as another example of a push code was devised.
See also
External links
- Pull technology @ Wikipedia.org
