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WCF and caching

I have implemented caching in a WCF service hosted in a windows service
When my windows service starts I cache a dataset.

Now when my client calls the WCF service hosted in the windows service.
I noticed that the very first call takes a long time because it cannot find the cache.

ObjectCache cache = MemoryCache.Default;
if (cache.Contains(pCacheKey))
listPortfolios = (List<P>)cache.Get(pCacheKey);
else
{
get data and add to cache
}

kaufmed

What is your question?

countrymeister

ASKER

The question is I am pretty sure the cache has the data, because my windows service loads the cache every morning.

But the very first call from the client takes a long time, the subsequent calls get the data back quickly .
My question is why does the very first call take a long time.

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kaufmed

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countrymeister

ASKER

here is my code, I am using System.Runtime.Caching, I have done the checks you mentioned.
The wcf service is hosted in a windows service

Checking further on this

ObjectCache cache = MemoryCache.Default;
if (!cache.Contains(pCacheKey))
CacheItemPolicy cacheItemPolicy = new CacheItemPolicy();
cacheItemPolicy.AbsoluteExpiration = DateTime.Now.AddHours(24.0);

cache.Add(pCacheKey, data, cacheItemPolicy);

countrymeister

ASKER

On another note, I also tested adding debug in my windows hosted wcf service, verifying the dat is in the cache.
Yet the first call from my WPF client tries to get data from the db instead of the cache.

kaufmed

At which point(s) in your application is the database accessed for the purpose of loading the cache?

countrymeister

ASKER

When the window service starts , I have a background thread that loads all the required data in cache.

So in my testing in debug mode, I verified that the wcf service hosted in windows service has the cached data with the respective cache keys.

Once I verified that, I started my client and then made a service call to get the data and when I step through in debug mode again in my client, I notice that it tries to relaod the cached data.

Now is this the issue in debug mode per se, or should I be installing my service using install util and checking if this behaviour exists.

countrymeister

ASKER

Not much help provided I am closing this question