caching

Is JCS still being maintained?

I need to add a cache to my Java app, and I'm considering using JCS. The last JCS release was done in June 2009. Is JCS still being maintained, or has the project been abandoned? I realize that anyone can look at the svn checkin log for JCS. What I would ideally like is an answer from someone who is a JCS committer, or who is directl...

Hibernate disable Query Cache

Following problem: I create a Query to display all Entries of a MYSQL Table, if I edit a Field and execute the Query again I get the same (old) Result as in the first query. It seems that Hibernate caches the Result. I tried to disable Caching with query.setCachable(false) "hibernate.cache.use_second_level_cache" "cache....

ASP.NET cache Application Variable

I am wondering about potential issues with – alternatives to - caching using an application variable. To preface, I have a custom application object that stores all application data in ONE application variable – the object organizes data in an XML cloud and stores the cloud in one variable for performance. I am aware of DataSet caching,...

Mongrel not detecting changes in Rails classes?

I have a Rails app installed on a Slicehost server running Apache 2 and Ubuntu LTC 10.04. Things have worked beautifully up until now: I edit a file, do a quick mongrel_rails cluster::restart, and the changes are reflected in production. However, suddenly this process has broken down. For example, I have a class called Master located i...

help with second level cache using NHibernate and memcached

How can i read/write to the cache for a periode of time i.e 10 seconds and then commit the changes to the database? ...

Does Cache.Insert override the previous AbsoluteExpiration?

Hi folks, If i have an item that already exists in my ASP.NET Cache ... and I just wish to update the value of that cached item .. not the Absolute Expiry value, or Cache Dependencies, etc.. nothing else BUT the value ... can I use Cache.Insert? If not, is there anyway I can retrieve all those values for the cached item .. and then re-...

Authenticating a client-side web service request in a cached environment

We're building a set of external web services to be consumed client-side (using jquery/AJAX) by visitors to our site. The web services need to be publicly available but we'd like to limit access to site visitors. Importantly, the site in question sits behind a CDN and we cache page content for 24 hours; AJAX requests would preferably b...

Best way to create a "template interpreter" in PHP

Hi! I'm hosting a multi area solution written in PHP, and each customer has its own template in some HTML files. Now I want these users to be able to use some chunks of dynamic content, but they can't be able to use PHP. I thought something like: In the HTML file, if I put this: <ul>[menu-list]</ul> Will output something like: <ul>...

nginx reverse proxy IIS to cache the pictures

I have the nginx reverse proxy to IIS to cache the images... now I have config the like this: user root root; worker_processes 8; worker_rlimit_nofile 51200; events { use epoll; worker_connections 51200; } http { include mime.types; default_type application/octet-stream; server_names_hash_bucket_size 128;...

Does WebKit Cache 3rd Party Resources?

In Chrome and Safari a remote image included on my site never seems to get requested with caching-friendly headers (If-Modified-Since, etc) despite the server returning the appropriate information. Local resources, on the other hand, are requested with these headers. In contrast Firefox requests the remote resources with caching-friendly...

html textbox history

Hi everyone, I have several textboxes in my web application.I want them to remember history when user double click on it like autocomplete operation,but they never remember.is these textboxes remembers if they are in only form field?I couldn't do that. Thanks in advance... ...

NHibernate best pratices (Query cache with much static data)

We have a situation, where we feel we do not fully take advantage of NHibernate's capabilities, which reduces performance. The actual situation is reduced to a "blogs with posts" example for this question. A blog site, where each user can have its own blog which has an arbitrary number of posts. Therefore, there is a table for posts def...

Alternatives to GeoWebCache?

Does anyone know alternatives to GeoWebCache (GWC)? There's TileCache, but it seems to be "dead" in terms of no more development taking place. In addition to that i can't figure out how to cache a protected WMS with TIleCache (basic auth). ...

How to flush output after each `echo` call?

Hi all! I've a php script that only produces logs to the client. When I echo something, i wan't it to be transfered to client on-the-fly. (Because while the script is processing, the page is blank) I had already played arround with ob_start() and ob_flush(), but they didn't worked. What's the best solution? PS: it is a little dirty to ...

Any reliable way to stop Internet Explorer (v7, 8) to stop caching PDF files?

Hello, An application I work on generates PDF documents and renders them in a browser window. Some of the data in the documents can be considered sensitive so we're exploring how to prevent the browser from caching the document contents. We're using the following Java code which prevents caching in Firefox but doesn't work in IE 8: r...

AppFabric vs Unity vs Memcached or possibly any other multi server caching mechanisms

Hi, I am currently in the process of investigating the various different caching mechanisms out there whether they be free or at some cost (minimal preferably). The situation. Currently we have to load-balanced servers that host our web application with a third server being an SQL server. This site is a eShop, and it gets hit quite reg...

How to use ASP.Net server controls inside of Substitution control ?

while the method we use in Substitution control should return strings, so how is it possible to use a donut caching in web forms on a server control which should be rendered server side? for example Loginview control? ...

Cache with timeout using .Net 4 & Concurrent Collections

How would you implement a cache class that supports timeouts using the new Concurrent Collections of .Net 4? The cache class will be typically holding hundreds of thousands of entries. A very large part of the cache may expire simultaneously. Unlike a typical web cache, which may shrink due to memory pressure, this class should only a...

http headers for faster image loading ?

Hi, I need to load almost 100's of images in a single page on my website. ( product image, lots of them ). Whenever image change for product, url for that image also changes. i.e. for one url corresponding iamge never changes. Now I want to make sure that for a same person browsing through website, the image must not load again. Is ex...

Which implementation is better: Cache based on WeakHashMap or cache based on ThreadLocal?

Hello, I'm having hard time to decide between the following two implementations. I want to cache the javax.xml.parsers.DocumentBuilder object, per thread. My main concern is runtime performance - Hench I would be happy to avoid as much GC as possible. Memory is not an issue. I've written two POC implementations, and would be happy to ...