CODEWITHSUNDEEP
c#cachinghttpcontext
MrProgram
MrProgram

Reputation: 5242

Httpcontext current cache gets cleared

I'm storing values into HttpContext.Current.Cacheusing the Insertmethod:

HttpContext.Current.Cache.Insert(key, value, null, DateTime.Now.AddMinutes(1440), TimeSpan.Zero);

In my mind this should store the value in the cache in 1440 minutes. But somehow the cache gets cleared and the key doesn´t exist anymore. The last time I checked this the cache was saved in about 30 minutes.

Could the cache be cleared somehow? If the AppPool is recycled or something like that?

Upvotes: 1

Views: 1393

Answers (2)

Vishnu Prasad V
Vishnu Prasad V

Reputation: 1258

Are you sure that piece of code is executed? Setting both AbsoulteExpiration and SlidingExpiration is illegal in Cache.Insert. Your code should throw ArgumentException if executed.

See this link.

Proper usage would be 

HttpContext.Current.Cache.Insert(key, item, null, dateExpiration, Cache.NoSlidingExpiration);

Use Cache.NoSlidingExpiration if you want AbsoluteExpiration of 1440 minutes.

HttpContext.Current.Cache.Insert(key, value, null, DateTime.Now.AddMinutes(1440), Cache.NoSlidingExpiration);

Hope this helps.

Upvotes: 1

Abhilash R Vankayala
Abhilash R Vankayala

Reputation: 693

Yes, the cache is stored in memory until the process is stopped and hence restarting / resetting IIS or Recycling the App Pool would clear the cache. If it is a local host, building the application will also clear the cache.

Upvotes: 1

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