I am calling the following every 10 seconds as a test:-
var cache = _cacheManager.GetCache("PendingTasksCache");
return _cacheManager
.GetCache("PendingTasksCache")
.Get("pendingtaskscount", () =>
GetPendingTasksCountQuery());
Which in turn calls this:-
private int GetPendingTasksCountQuery()
{
return _ticketRepository.Count(x => x.Status == "Pending")
+ _changeRequestRepository.Count(x => x.Status == "Pending")
+ _contractRepository.Count(x => x.Status == "Pending")
+ _orderRepository.Count(x => x.Status == "Pending");
}
And the cache itself is set like this for a 30 second window ( as a test):-
Configuration.Caching.Configure("PendingTasksCache", cache =>
{
cache.DefaultSlidingExpireTime = TimeSpan.FromSeconds(30);
});
The first time it is called, it fetches the data successfully. But I would expect it to refresh the cache and rebuild the data every 30 seconds. But it never does and never calls GetPendingTasksCountQuery again. Where am I going wrong or what have I misunderstood?
5 Answer(s)
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0
Anyone? I'll give you a chocolate biscuit
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0
Hi,
Did you solve your problem ? Your usage seems fine but why do you have the first line ?
var cache = _cacheManager.GetCache("PendingTasksCache"); -
0
Hi,
Isn't the definition of a "sliding cache" is that it doesn't recalculate data until it hasn't been accessed for the "slidingTimeExpiration" ?
If it's set to 30s and you're accessing it every 10s, it will never recalculate data.
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0
Ah ok - so I am missing something. I was hoping to use it to store that data for an amount of time and prevent frequent slow queries during that time, retrieving from cache instead. Therefore, I guess it is the AbsoluteExpireTime I should be using instead?
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0
I guess it suits your needs more than the Sliding type. Remember that the cache will expire the entry after the amount of time you setted, even if no access happend.
