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Patching DataCacheFactory disposal

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Known bug in the API: http://blogs.msdn.com/b/cie/archive/2014/04/29/cache-retry-fails-what-next.aspx
This commit is contained in:
Sebastien Ros
2014-06-12 10:22:21 -07:00
parent 941eb3bfe3
commit e871a48514
1 changed files with 21 additions and 5 deletions
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26
src/Orchard.Web/Modules/Orchard.Azure/Services/Caching/Output/AzureOutputCacheStorageProvider.cs
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@@ -3,6 +3,7 @@ using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Reflection;
using Microsoft.ApplicationServer.Caching;
using Orchard.Azure.Services.Environment.Configuration;
using Orchard.Caching;
@@ -122,12 +123,27 @@ namespace Orchard.Azure.Services.Caching.Output {
return function.Invoke();
}
catch (DataCacheException) {
DataCacheFactory cacheFactory;
Logger.Debug("Retrying cache operation");
if (_dataCacheFactories.TryRemove(CacheConfiguration, out cacheFactory)) {
cacheFactory.Dispose();
// applying http://blogs.msdn.com/b/cie/archive/2014/04/29/cache-retry-fails-what-next.aspx
try {
DataCacheFactory cacheFactory;
Logger.Debug("Retrying cache operation");
if (_dataCacheFactories.TryRemove(CacheConfiguration, out cacheFactory)) {
lock (_dataCacheFactories) {
cacheFactory.Dispose();
// Clear DataCacheFactory._connectionPool
var coreAssembly = typeof(DataCacheItem).Assembly;
var simpleSendReceiveModulePoolType = coreAssembly.
GetType("Microsoft.ApplicationServer.Caching.SimpleSendReceiveModulePool", throwOnError: true);
var connectionPoolField = typeof(DataCacheFactory).GetField("_connectionPool", BindingFlags.Static | BindingFlags.NonPublic);
connectionPoolField.SetValue(null, Activator.CreateInstance(simpleSendReceiveModulePoolType));
}
}
return Retry(function, times--);
}
catch (Exception e) {
Logger.Error(e, "An unexpected error occured while releasing a DataCacheFactory.");
return default(T);
}
return Retry(function, times--);
}
}