State Management :: Storing Dataset In Application Cache?
Nov 29, 2010
I am writing a web page that returns a small volume of data from a database table. The database is polled every 1 second and the data will be the same for every user. As every user is accessing the same data, there is no need for each user to poll the database and use up db resource.
Therefore, I think I should be using application caching to store the data in a dataset. However, I am slightly stumped as to how to do this.... because how can i ensure that the dataset is kept up to date.
The only way I can think to do this is to have a master user/session (i.e. the first session in the application) that keeps the cache object updated every second, then other users can use that cache object. If the first session ends, then the next requestor of the cache will pick up responsibility for keeping the dataset up to date.
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Sep 17, 2010
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Mar 31, 2010
i've been coding an asp.net site using VS2005 for about one month.
my site uses both application cache and session cache to save data.
the syntax i use for application cache is :
HttpApplicationState appState = Application;
appState["someKey"] = "somevalue";
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HttpContext.Current.Session["someKey"] = "Somevalue";
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two of the servers work just fine, the third has a stange problem - and also has the least free memory space.
in this server items start dissapearing from both the session and application cache - note that i set no expiration date to the cache items.
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Sep 18, 2010
We have a scenario where we need to store large tables of data on Session in asp.net page. on a highlevel we have to store following data
1> A table (table 1) with 1000 rows and 8 to 10 columns.
2> A table(table 2) with 500 rows and 8 to 10 columns (actually user can add the data from table 1 to table 2, so as user keeps on adding from table 1 we remove the data and put it in table 2)
3> Another table(table 3) with 1000-1200 rows each having 3 columns.
We are having a webfarm, so we need to store it in either SateServer of Oracle DB,What would be the performance implications of storing such huge data on the server.
One more thing is at any point of time max of 70 -80 people will be accessing our website, so will this cause any performance degradation?
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Jun 1, 2010
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[Code]....
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[Code]....
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Aug 11, 2010
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[Code]....
When just doing: Cache.Insert("MyKey", myObject); or Cache["MyKey"] = myObject; I get the same result (cache is almost always null for that key).
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to my web.config file in the System.Web-section but nothing changed :(
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[Code]....
Behind code VB:
[Code]....
[Code]....
[Code]....
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Apr 5, 2010
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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.
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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 ?
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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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