I'm working on my app, and came to a huge problem. The baseleine of 100 idle connections that you see is caused by Min Connections in connection string - without it the idle connection graph would be even more jagged, oscilating between 20 and 140 connections, and spiking to thouhsands. What can be the reason for idle connection spikes? Connections for Dapper are disposed with using using var db = new NpgsqlConnection(_connectionString) With thousands of idle connections I either exhaust connection pool, or run out of memory.ĭapper and EntityFramework are used in Data access layer. The problem is that despite there being only 3-5 active connections, idle connections fluctuate between 30-100, and sometimes spike into thousands. Server load stays low (cpu under 20%, memory under 60%) The database receives 3-4k transactions per second.Īll queries are very fast - pg_stat_statements shows mean execution time of 0.7 miliseconds. The server is relatively high-loaded (5-6k rps). I have a server on ASP.NET Core communicating with a postgres DB hosted on a same machine. Net Core framework, the network traces shows a separate tcp connection for each request while with the ASP.NEt 4.7.2 framework the sockets get reused.Īppreciate your thoughts to understand the differences, to explain this behavior and the best way to overcome this issue. HttpRequestMessage.Method = new HttpMethod("GET") ĪwaitableTasks = (httpRequestMessage)
HttpRequestMessage.RequestUri = new Uri("") Var httpRequestMessage = new HttpRequestMessage() Task awaitableTasks = new Task įor (int i = 0 i < numberofIterations i++) Public static async Task Main(string args)Ĭonsole.WriteLine("Starting connections") Private HttpClient Client = new HttpClient() Net Core but I have got different behavior for each framework public class Program
HOW TO SET INSIDE BUTTON TEXT HTML CODE
How do I do thisMy code is below:
HOW TO SET INSIDE BUTTON TEXT HTML SIMULATOR
PresentViewController(alert, true, null) Īgain, this works in the simulator but on the iPhone it does absolutely nothing. alertDelay = NSTimer.CreateScheduledTimer(seconds, (obj) =>Īlert = UIAlertController.Create(null, "Action", UIAlertControllerStyle.Alert) Īlert.AddAction(UIAlertAction.Create("Delete", UIAlertActionStyle.Default,UIAlertAction => ucvm.DeleteCar())) Īlert.AddAction(UIAlertAction.Create("Cancel", UIAlertActionStyle.Cancel, null)) UpdateCarsViewModel ucvm = new UpdateCarsViewModel() Interface defined in the common project public interface IMessageĬode in iOS project to display the alert public void LongAlert(string message) Public async void DisplayAlerts(AutoWithSwitch value)Ī = value ĭependencyService.Get().LongAlert("Stupid") View Model code public AutoWithSwitch SelectedItem Here are the pieces of code that come into play here. Of these 4 methods mentioned, they all work in the simulator, but non of them work on the iPhone.
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