Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+. http://www.thepollyproject.org

https://github.com/App-vNext/Polly

PollyJobRetry-

Perform 25 retries over approximately 21 days.

public static class RetryWithExponentialBackoff
    {
        public static Policy GetRetryPolicyHandler()
        {
            Policy retryWithExponentialBackoff = Policy.Handle<Exception>().WaitAndRetry(new[]
            {
                TimeSpan.FromSeconds(30),
                TimeSpan.FromMinutes(1).Add(TimeSpan.FromSeconds(16)),
                TimeSpan.FromMinutes(2).Add(TimeSpan.FromSeconds(32)),
                TimeSpan.FromMinutes(5).Add(TimeSpan.FromSeconds(8)),
                TimeSpan.FromMinutes(10).Add(TimeSpan.FromSeconds(54)),
                TimeSpan.FromMinutes(23).Add(TimeSpan.FromSeconds(4)),
                TimeSpan.FromMinutes(46).Add(TimeSpan.FromSeconds(40)),
                TimeSpan.FromHours(1).Add(TimeSpan.FromMinutes(28)).Add(TimeSpan.FromSeconds(56)),
                TimeSpan.FromHours(2).Add(TimeSpan.FromMinutes(39)).Add(TimeSpan.FromSeconds(42)),
                TimeSpan.FromHours(4).Add(TimeSpan.FromMinutes(31)).Add(TimeSpan.FromSeconds(48)),
                TimeSpan.FromHours(7).Add(TimeSpan.FromMinutes(21)).Add(TimeSpan.FromSeconds(28)),
                TimeSpan.FromHours(11).Add(TimeSpan.FromMinutes(28)).Add(TimeSpan.FromSeconds(44)),
                TimeSpan.FromHours(17).Add(TimeSpan.FromMinutes(17)).Add(TimeSpan.FromSeconds(50)),
                TimeSpan.FromDays(1).Add(TimeSpan.FromHours(1)).Add(TimeSpan.FromMinutes(17)).Add(TimeSpan.FromSeconds(36)),
                TimeSpan.FromDays(1).Add(TimeSpan.FromHours(12)).Add(TimeSpan.FromMinutes(1)).Add(TimeSpan.FromSeconds(52)),
                TimeSpan.FromDays(2).Add(TimeSpan.FromHours(2)).Add(TimeSpan.FromMinutes(9)).Add(TimeSpan.FromSeconds(52)),
                TimeSpan.FromDays(2).Add(TimeSpan.FromHours(20)).Add(TimeSpan.FromMinutes(26)).Add(TimeSpan.FromSeconds(38)),
                TimeSpan.FromDays(3).Add(TimeSpan.FromHours(19)).Add(TimeSpan.FromMinutes(43)).Add(TimeSpan.FromSeconds(24)),
                TimeSpan.FromDays(5).Add(TimeSpan.FromMinutes(58)).Add(TimeSpan.FromSeconds(0)),
                TimeSpan.FromDays(6).Add(TimeSpan.FromHours(13)).Add(TimeSpan.FromMinutes(15)).Add(TimeSpan.FromSeconds(16)),
                TimeSpan.FromDays(8).Add(TimeSpan.FromHours(9)).Add(TimeSpan.FromMinutes(15)).Add(TimeSpan.FromSeconds(16)),
                TimeSpan.FromDays(10).Add(TimeSpan.FromHours(15)).Add(TimeSpan.FromMinutes(47)).Add(TimeSpan.FromSeconds(26)),
                TimeSpan.FromDays(13).Add(TimeSpan.FromHours(9)).Add(TimeSpan.FromMinutes(54)).Add(TimeSpan.FromSeconds(32)),
                TimeSpan.FromDays(16).Add(TimeSpan.FromHours(14)).Add(TimeSpan.FromMinutes(28)).Add(TimeSpan.FromSeconds(48)),
                TimeSpan.FromDays(20).Add(TimeSpan.FromHours(11)).Add(TimeSpan.FromMinutes(11)).Add(TimeSpan.FromSeconds(10))
            });
            return retryWithExponentialBackoff;
        }
    }