State Management :: Do HttpRuntime.Cache Support For Network Load Balancing

Nov 12, 2010

My servers are behind F5 load balancer, I wanna use HttpRuntime.Cache in my web application but I didn't find out the way for to use that method for those using network load balancing server. Or can we store that HttpRuntime.Cache to sql server like the session we do in web.config file?

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Configuration :: Network Load Balancing With FileUpload Control?

Oct 13, 2010

i just have a question about using FileUpload control to upload files to server. Let's say i have 2 servers for a network load balancing, should i need to do something for ensure the data/files is synchronize between that 2 servers?

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Determine If Application Support Load Balancing Environment

Jan 12, 2010

I am new to, I have been tasked to upgrade the physical architecture to load balancing environment to support the application. I done some reading the session state should be configure to Out-Process instead of In-Proc to support load balancing. Is there any other issues I need to take note for web application to run in the load balanced environment?

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State Management :: SessionState Timeout Vs. Httpruntime ExecutionTimeout?

Jun 30, 2010

what the difference between

SessionState Timeout


HttpRuntime ExecutionTimeout

is? Both in web.config. I want to increase or reduce the timeout in my webapplication. Means: If a users idles more than 10 min. the should get timed out.

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C# - Maximum Length Of Cache Keys In HttpRuntime.Cache Object?

Feb 24, 2010

We are using HttpRuntime.Cache API in an ASP.NET to cache data retrieved from a database.

For this particular application, our database queries feature a LOT of parameters, so our cache keys look something like this:

table=table1;param1=somevalue1;param2=somevalue2;param3=somevalue3;param4=somevalue4;param5=somevalue5;param6=somevalue6... etc...

we have so many parameters that the cache key is several hundred characters long. is there a limit to the length of these cache keys? Internally, it is using a dictionary, so theoretically the lookup time should be constant. However, I wonder if we have potential to run into some performance/memory problem.

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State Management :: How To Add A List To The Cache

Nov 19, 2010

I want to add a list to the cache and I would like it to stay there as long as posible.

Is there a way adding something to the cache permanently?

how do i set the exiry date of a cached object?

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State Management :: Cache A Whole Site?

Mar 12, 2011

Is it possible to cache a hole site?ll its pages, images, js, db data etc...If so is it go/bad idea?

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State Management :: Cache Always Removes Itself?

Aug 11, 2010

I have some weird problem. We're using Windows Server 2008 R2 x64 (8 Cores and
8 GB RAM) with IIS 7.5 and ASP.NET MVC 2.

I always cache (simple) stuff via the context cache and it seems like 9 out of 10 immediate page refreshs the Cache["MyKey"] is always null, even though there's no memory limit set on the pool and the server has lots of free memory.

I add expiring data via:


When just doing: Cache.Insert("MyKey", myObject); or Cache["MyKey"] = myObject; I get the same result (cache is almost always null for that key).

As you can see I added a callback, which writes the CacheItemRemovedReason to a text file, and the text file says CacheItemRemovedReason.Removed for MyKey. The doc for CacheItemRemovedReason.Removed says, that I call Remove/Insert on it, even though in my whole project there's no "Remove"-calls, just simple if(Cache["MyKey"] == null) {Cache["MyKey"] = ...} stuff.

I tried adding:

<caching><cache disableMemoryCollection = "true" disableExpiration = "true" privateBytesLimit="0" percentagePhysicalMemoryUsedLimit="90" privateBytesPollTime="00:02:00" /></caching>

to my web.config file in the System.Web-section but nothing changed :(

why Cache["MyKey"] is almost always null?

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State Management :: Cache Is Empty After First Use?

Jul 6, 2010

I have a treeview that shown groups and their sub groups in my usercontrol. I pass the parent GroupId to the usercpntrol from the page. I want to cache nodes of treeview for every Parent Group Id. My code is works good for first time and fill the cache object . after refresh the page, cache object fill the TreeNodeCollection succesfully and everything is ok. But after another refresh, cache object is not null but is empty and TreeNodeCollection.count is zero(0). What's my fault? Please help me to solve this problem.


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State Management :: User Profile Cache?

Apr 5, 2010

I am looking for an elegant (i guess as elegant as it can be) solution to caching a users profile on login (whether it is session, cache, cookie, etc) and keeping it in sync when a users profile is changed. How do you guys handle this? Just simply call a Flush() method in your Save() method that invalidates the cache?

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State Management :: Cache Sharing Between Applications

Jul 30, 2010

Is it possible to share a cache between multiple ASP.NET applications? The apps may reside on different servers. How can one achieve this requirement?

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State Management :: Output Cache And Not IsPostBack

May 18, 2010

I'm trying to cache a complex page with lots of controls on it so that if the user navigates to it later it will look like it did when he last saw it.The page has controls which post back and other controls are populated depending on the selections.

I'm using [Code]....
after the <@ Page directive.

What happens is that a postback gets the cached page, so no processing and it looks the same regardless of user selections. So far so good. But if I browse to another page and return by a link, the cached version is ignored and the default page is created again. This is more or less the opposite to what i want.

I attempted to use the validation callback to ensure that a postback resulted in a new version, and that worked, but it still ignored the cached page if it wasn't a postback.I realise that it will need more work to ensure each user gets their version of the page from the cache, but why bother if this doesn't work.

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State Management :: Cache Vs Static Variable?

Sep 24, 2010

I know the big difference, but one thing is confusing me. Cache works only on a single machine on webfarm and to make it globally we use Velocity or memcache.So is static does same, or is it already work globally ?

Cache["someid"] = "value"; //this will only work on single machine cache,

static string abc = "value"; // will this work on single machine or globally ?

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State Management :: App Settings In Application Cache?

Dec 12, 2010

Is it suitable to store some app settings in Application Cache? I mean settings that might need to be changed frequently...

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State Management :: Add Data To Cache To Add Only 100 Records?

Apr 2, 2010

I have a senario where i want to add the data into cache but only 100 records should be added.

Is their any predefined functions available.

Basically i dont want to write if else condition whiile adding the records wether its 100 records present or not.

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State Management :: Use the Cache to see The Grid Update?

May 9, 2010

I have a page that has a grid view.

The user selects a person from a dropdown list and then clicks a button that adds the users info as

a new row in the grid.

Adding the new row involves doing an insert and rebinding the grid which is a slow process.

How do I use the cache to see the grid update right away?

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State Management :: Populate Dropdown From Cache

Oct 6, 2010

I wanted to know the best practice for caching data. Say I have some control example a dropdown list which is populated from my db. Now this dropdown is global and used across many pages. I was thinking of not going to database everytime to fetch data for this dropdown and put the result in Cache. And then populate this dropdown from cache. Is this a good practice or if there is another approach. Can I store my datareader in cache and then use it globally. Also could I do this in application start event?

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State Management :: Relies The Cache On Site?

Dec 21, 2010 I am trying to update the website but the cache kips on working. How can I relies the cache on site.

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State Management :: Remove Cache When OutOfMemory?

Dec 9, 2010

I am Caching dataset in my application, the issue is when there is a large set of data the OutOfMemory exception is thrown.

I want to check for the this exception and when it happens I want to remove the cache object.

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State Management :: Use An Object From The Cache In A Mvc View?

Sep 24, 2010

I am working with mvc and i am trying to get acces to a object that is in the cache.In the Application_Start() of Global.asax.cs i create and store an object in the cache like this:

Translator translator = new Translator();
HttpContext.Current.Cache.Insert("Translator", translator, null, System.Web.Caching.Cache.NoAbsoluteExpiration, System.Web.Caching.Cache.NoSlidingExpiration);

Translator holds a dictionary with translations.Now i want acces to this object from the cache to use functions and get values from the dictionary.I know i can acces it like this HttpContext.Current.Cache.Get("Translator") or Cache.Get("Translator") in the views But how can i use the functions of the object ? The meaning of the cache is to have a object that is accesable througout the webapp right ?

Do i have to make an object and asses the value of the Cache.Get("Translator") to it, so i can use the functions or is there another solution?

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Can Share HttpRuntime.Cache Between Applications

Aug 15, 2010

I have a website setup like this:

/Web --this is the client facing site /Web/Admin --this is the backend system and is setup as a Virtual Application

I'm using HttpRuntime.Cache for caching calls to the database. What I want to be able to do is clear something that is cached on the /Web site from the /Web/Admin site. It appears though that HttpRuntime.Cache is a single instance per application.

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SPCache Versus HttpRuntime.Cache

Mar 27, 2011

I have a SharePoint 2010 Farm and want to use object caching for my own custom objects.

Since it's an Application at it's core, I could use HttpRuntime.Cache. On the other hand, SharePoint 2010 offers it's own SPCache.

Why would I choose SPCache over the HttpRuntime.Cache one?

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MVC :: Authentication And Authorization With HttpRuntime.Cache?

Apr 22, 2010

I am new in MVC but i really like it. I always prefer flexible authentication systems, on the other hand security is very important issue too. So i looked for some sipmle way to store current loged "user id/user name" in server side. I think that "HttpRuntime.Cache" can be a answer. So i write simple test project Of course this code is is not complete.


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Data Cache Support Background Population Of Cache Entries?

Aug 1, 2010

We have a data driven ASP.NET website which has been written using the standard pattern for data caching (adapted here from MSDN):

public DataTable GetData()
string key = "DataTable";
object item = Cache[key] as DataTable;


The trouble with this is that the call to GetDataFromSQL() is expensive and the use of the site is fairly high. So every five minutes, when the cache drops, the site becomes very 'sticky' while a lot of requests are waiting for the new data to be retrieved.

What we really want to happen is for the old data to remain current while new data is periodically reloaded in the background. (The fact that someone might therefore see data that is six minutes old isn't a big issue - the data isn't that time sensitive). This is something that I can write myself, but it would be useful to know if any alternative caching engines (I know names like Velocity, memcache) support this kind of scenario. Or am I missing some obvious trick with the standard ASP.NET data cache?

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State Management :: Cache Expiry Date Not Working?

Nov 26, 2010

I have added a list to the cache with an expiry date, however the expiry date doesnt work, im not sure how long the cached item lasts but its no more than a day.


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