private static void CheckMemoryAvailable()
{
ApplicationServiceSettings settings = new ApplicationServiceSettings();
if (settings.MinimumFreeMemoryMB <= 0)
{
return;
}
bool memoryAvailable = SystemResources.GetAvailableMemory(SizeUnits.Megabytes) > settings.MinimumFreeMemoryMB;
if (!memoryAvailable)
{
string error = String.Format(
"Application server out of resources. Minimum free memory not available ({0}MB required, {1}MB available).",
settings.MinimumFreeMemoryMB,
SystemResources.GetAvailableMemory(SizeUnits.Megabytes));
Platform.Log(LogLevel.Warn, error);
throw new FaultException <OutOfResourceFault>(new OutOfResourceFault {
ErrorMessage = error
});
}
}
/// <summary>
/// Ensure number of applicatin
/// </summary>
private static void CheckNumberOfApplications()
{
ApplicationServiceSettings settings = new ApplicationServiceSettings();
if (settings.MaximumSimultaneousApplications <= 0)
{
return;
}
Cache cache = Cache.Instance;
lock (cache.SyncLock)
{
// Note: because app is added into the cache ONLY when it has successfully started, there's a small chance that
// this check will fail and # of app actually will exceed the max allowed. Decided to live with it for now.
if (cache.Count >= settings.MaximumSimultaneousApplications)
{
Platform.Log(LogLevel.Warn, "Refuse to start: Max # of Simultaneous Applications ({0}) has been reached.", settings.MaximumSimultaneousApplications);
throw new FaultException <OutOfResourceFault>(new OutOfResourceFault {
ErrorMessage = SR.MessageMaxApplicationsAllowedExceeded
});
}
}
}
