Re: dynamic cache allocation
On Tue, 9 Jan 2001, Elman Vagif Abdullaev wrote: > dynamic caching is to have some sort of script or module that will > check if the data stored on the proxy server is outdated. It will > check if the data in the database that was used to generate the > responce to some query was chenged and therefore data in proxy is not > valid anymore. If it was changed then we again go to database and > generate the responce. That only makes sense if you can test whether or not the data was changed much more quickly than you can actually re-generate the page. IN most cases, the point of the cache is to avoid going to the database in the first place. A better idea might be to have a background process that checks your database every few minutes to determine what has changed and deletes anything in your proxy cache that contains that cached data. Users may get slightly out of date data using this method, but it's much faster than going to the database every time. By far the simplest approach is to just set a time-to-live (TTL) on each page using Expires headers and let mod_proxy or Squid worry about removing the page after that. But the approach you choose must be appropriate to the type of data you have and how often it changes. - Perrin
Re: dynamic cache allocation
Well right now proxy caching have static cache allocation, i.e. it caches whatever the last request was asking for. But what I mean by dynamic caching is to have some sort of script or module that will check if the data stored on the proxy server is outdated. It will check if the data in the database that was used to generate the responce to some query was chenged and therefore data in proxy is not valid anymore. If it was changed then we again go to database and generate the responce. If the database was not changed we can just give whatever was stored in the databse to the rerquesting user. I am just wondering if something like that was done already since it would speed up internet. On Tue, 9 Jan 2001, Perrin Harkins wrote: > On Tue, 9 Jan 2001, Elman Vagif Abdullaev wrote: > > Does anyone know if there is a module that enables dynamic cache > > allocation for apache web server on the proxy? > > "Dynamic cache allocation" could mean anything. Can you be more specific? > - Perrin >
Re: dynamic cache allocation
On Tue, 9 Jan 2001, Elman Vagif Abdullaev wrote: > Does anyone know if there is a module that enables dynamic cache > allocation for apache web server on the proxy? "Dynamic cache allocation" could mean anything. Can you be more specific? - Perrin
dynamic cache allocation
Does anyone know if there is a module that enables dynamic cache allocation for apache web server on the proxy?
