polly

问题 I have the following policies: var sharedBulkhead = Policy.BulkheadAsync( maxParallelization: maxParallelizations, maxQueuingActions: maxQueuingActions, onBulkheadRejectedAsync: (context) => { Log.Info($"Bulk head rejected => Policy Wrap: {context.PolicyWrapKey}, Policy: {context.PolicyKey}, Endpoint: {context.OperationKey}"); return TaskHelper.EmptyTask; } ); var retryPolicy = Policy.Handle<HttpRequestException>() .Or<BrokenCircuitException>().WaitAndRetryAsync( retryCount: maxRetryCount,

问题 I have the following policies: var sharedBulkhead = Policy.BulkheadAsync( maxParallelization: maxParallelizations, maxQueuingActions: maxQueuingActions, onBulkheadRejectedAsync: (context) => { Log.Info($"Bulk head rejected => Policy Wrap: {context.PolicyWrapKey}, Policy: {context.PolicyKey}, Endpoint: {context.OperationKey}"); return TaskHelper.EmptyTask; } ); var retryPolicy = Policy.Handle<HttpRequestException>() .Or<BrokenCircuitException>().WaitAndRetryAsync( retryCount: maxRetryCount,

问题 I was looking for a good example which describes implementing Polly caching in .net core 2.1 using the memory cache option. I got to a point configuring the cache settings on startup. services.AddSingleton<Polly.Registry.IPolicyRegistry<string>, Polly.Registry.PolicyRegistry>((serviceProvider) => { PolicyRegistry registry = new PolicyRegistry(); registry.Add("myCachePolicy", Policy.CacheAsync<HttpResponseMessage>(serviceProvider.GetRequiredService<IAsyncCacheProvider>().AsyncFor

问题 I have a query, IGetHamburgers , that calls an external API. I've registered the implementation of IGetHamburgers in my DI container as a Singleton. Im using Polly as a Circuitbreaker, if two requests fails the circuit will open. My goal is that all calls to the Hamburger api should go through the same circuitbreaker, if GetHamburgers fails, then all other calls should fail as well. How should I use my Policy? Should I register my Policy as a field like this: private Policy _policy; private

问题 I'm creating a Xamarin.Forms app for iOS and Android where I am keeping data and a local sqlite database and online in an Azure server. Although my app requires an internet connection which it is always checking with the Connectivity plugin, I've found that I will sometimes have an exception thrown if a user loses cell reception mid request. I want to have a method I can call all my server requests to that will retry the request if an error occurs. I would also like the ability to ask the

问题 Following from Set a default Polly policy with Flurl How do I use Polly with Flurl without the factory? This only calls it once string s = await Policy .Handle<HttpRequestException> () .OrResult <HttpResponseMessage> (r => !r.IsSuccessStatusCode) .RetryAsync (5) .ExecuteAsync (() => { Console.WriteLine ("Retry"); return "http://127.0.0:7071/".GetAsync (); }) .ReceiveString () .ConfigureAwait (false); 来源： https://stackoverflow.com/questions/55718410/how-to-use-flurl-with-polly-without-factory

问题 I have the following retry policy which uses Polly.Extensions.Http : var retryPolicy = Policy.Handle<BrokenCircuitException>().OrTransientHttpError().WaitAndRetryAsync ( retryCount: maxRetryCount, sleepDurationProvider: attempt => TimeSpan.FromSeconds(Math.Pow(2, attempt)), onRetryAsync: (exception, calculatedWaitDuration, retryCount, context) => { //Code } ); I want to wrap the policy with circuit breaker and bulk head policies: var circuitBreaker = Policy.Handle<HttpRequestException>()

问题 I am using Polly framework for transient fault handling. For synchronous operations Polly circuit breaker policy works fine but when I created its async version it does not retries the execution. Kindly suggest : Asynchronous method : private async static Task HelloWorld() { if (DateTime.Now < programStartTime.AddSeconds(10)) { Console.WriteLine("Task Failed."); throw new TimeoutException(); } await Task.Delay(TimeSpan.FromSeconds(1)); Console.WriteLine("Task Completed."); } Polly circuit

问题 I am getting the above exception when executing a wrapped policy including: retry, circuit breaker and bulk head. I have the following policies: var sharedBulkhead = Policy.BulkheadAsync( maxParallelization: maxParallelizations, maxQueuingActions: maxQueuingActions, onBulkheadRejectedAsync: (context) => { Log.Info($"Bulk head rejected => Policy Wrap: {context.PolicyWrapKey}, Policy: {context.PolicyKey}, Endpoint: {context.OperationKey}"); return TaskHelper.EmptyTask; } ); var retryPolicy =

问题 I have method which returns IAsyncPolicy<HttpResponseMessage> and it has 2 or more policies along with CircuitBreaker and part of my DI. Now in my implementation class I added one extra fallbackPolicy to handle BrokenCircuitException and wrap it with IAsyncPolicy<HttpResponseMessage> (AsyncPolicy) Now I did my custom method implementation within DoWork() method, Great!!! Thanks to FallbackAsync policy where I'm catching BrokenCircuitException exception, means when circuit is open. var