caching

Leverage browser caching

I have a website and when I check page speed with Google plug-in, I receive: Leverage browser caching The following resources are missing a cache expiration Where can I change the settings for this? ...

Content cacheing with PHP and CodeIgniter

I have a couple of things I'm working on, namely a page that issues five or six cURL requests and processing content on them. I'm working with CodeIgniter on a LAMP stack but am open to other options. Naturally I would prefer to not rewrite the application. I would like to know if there are any ready-made / easily learned caching metho...

ruby rails loop causes server freeze

Hi all: I am working on a Ruby on Rails project on Windows. I have Ruby 1.86 and Rails 2.35 installed. Everything is fine until I tried to implement a comet process. I have the following code written to respond to a long poll javascript request. But everytime this function is called, it will hang the whole rails server, no second reques...

Image creation performance / image caching

Hello, I'm writing an application (J2ME MIDlet) that has a scrollable image (used to display a map). The map background consists of several tiles (premade from a big JPG file), that I draw on a Graphics object. I also use a cache (Hashtable), to prevent from having to create every image when I need it. I don't keep everything in memory...

Safe HttpContext.Current.Cache Usage

Hello there, I use Cache in a web service method like this : var pblDataList = (List<blabla>)HttpContext.Current.Cache.Get("pblDataList"); if (pblDataList == null) { var PBLData = dc.ExecuteQuery<blabla>( @"SELECT blabla"); pblDataList = PBLData.ToList(); Htt...

Locking Cache Key without Locking the entire Cache

I have servlets that caches user information rather then retrieving it from the user store on every request (shared Ehcache). The issue I have is that if a client is multi-threaded and they make more then one simultaneous request, before they have been authenticated, then I get this in my log: Retrieving User [Bob] Retrieving User [Bob...

Security implications of writing files using PHP

I'm currently trying to create a CMS using PHP, purely in the interest of education. I want the administrators to be able to create content, which will be parsed and saved on the server storage in pure HTML form to avoid the overhead that executing PHP script would incur. Unfortunately, I could only think of a few ways of doing so: Set...

Why is the cache not invalidating in the code

Hi, I am just trying to work with Sql Cache dependency. Iam able to cache the data but I am not able to invalidate. I have enabled the service broker and also enabled the notification using :>aspnet_regsql -S -ed -d -E -et -t the code is as follows name = (string)HttpRuntime.Cache.Get("Details"); SqlConnection conn = new Sq...

Configure OutputCache for ASCX from web.config's cache profiles

Hello, To configure aspx pages' OutputCache from one place, there is a great tool which is the CacheProfile attribute in <%@ OutputCache %> associated with a custom cache profile defined in the web.config : <caching> <outputCacheSettings> <outputCacheProfiles> <add name="myProfile" duration="300" /> </ou...

Preventing iframe caching in browser

How do you prevent Firefox and Safari from caching iframe content? I have a simple webpage with an iframe to a page on a different site. Both the outer page and the inner page have HTTP response headers to prevent caching. When I click the "back" button in the browser, the outer page works properly, but no matter what, the browser alway...

browsing caching of css and javascript files ?

Hello friends.. I want to konw whether the browser caching of css and javascript is automatic with php or v hv to do it manually with code.. and wt are the advantages if i manually cache the css and js files to client browser.. using code.. ?? If not cache wt will happened ?? ...

How reliable is DateTime.UtcNow in Silverlight applications?

I have a silverlight application which users will be running in various time zones. These applications load their data from the server upon start up, then cache it in IsolatedStorage. When I make changes to the data on the server, I want to be able to change the "last updated time" so that all silverlight clients download the newest da...

Internet Explorer Caching asp.netmvc ajax results.

I'm having an issue with a page in internet explorer. I have an ajax call that calls a form, in other browser, when I click the link it passes in the controller and load correctly data. but in IE, when its loaded once, it aways brings me the same old results without passing in the controller. ...

Exclude routing parameters in VaryByParam for Asp.Net 4

I have a routing setting in my global.asax file: routes.MapPageRoute("video-browse", "video/{id}/{title}/", "~/routeVideo.aspx"); My routeVideo.aspx page has caching setting: <%@ OutputCache Duration="10" Location="ServerAndClient" VaryByParam="id" %> But when I request http://localhost/video/6/example1 and http://localhost/video/6...

Why is my facebook app profile box not updated after I change it on my server?

Hey, I just recently started to develop facebook apps, so heres my simple question: My app displays a profile box, but whenever I update the file on my server, facebook still displays the old version. How can I make facebook use the "new" code? Thanks Simon ...

Spring + iBatis + Hessian caching

Hi. I have a Hessian service on Spring + iBatis working on Tomcat. I'm wondering how to cache results... I've made the following config in my sqlmap file: <sqlMap namespace="Account"> <cacheModel id="accountCache" type="MEMORY" readOnly="true" serialize="false"> <flushInterval hours="24"/> <flushOnExecute statement="Account.a...

Does the majority A-grade browsers cache content over https to disk?

I have read somewhere that javascript and css files that only get cached in memory sooner or later get pushed out by other content. Is this true? Are there any other issues regarding cashing SSL-objects? ...

How do I completely disable caching in Cakephp?

So I opened the cache floodgates in my Cakephp app and now I want to close them... I've done pretty much everything I can: delete all files in the tmp folder (but not the folders), turned 'Cache.disable' on in the core.php file in my app, have tried clearing the cache from within some controllers with clearCache() and Cache::clear() (bu...

Page cache - initiate the first page request in the server

Hi, I'm implementing Outputcache in my application and it works fine, but the first time always take a lot to load and the next following request will be faster... I would like to know if there is a way to initiate the page caching on the server side and serve the cached page upon the very first request, rather than have it triggered b...

REST, caching, and authorizing with multiple user roles

We have a multi-tenant system with multiple different levels of access--sometimes even for the same user as they switch between multiple roles. We're beginning a discussion on moving over to a RESTful implementation of things. I'm just starting to get my feet wet with the whole REST thing. So how do I go about limiting access to the c...