RetryQuery not working after throttling
Hi everyone, We are using the recommended approach for throttling. Here is the method we are using to execute the requests: public void ExecuteQueryWithRetry(ClientContext ctx, int retryCount, int backOffInterval, ILog LOG) { DateTime startTimeStamp = DateTime.Now; try { int retryAttempts = 0; int retryAfterInterval = 0; bool retry = false; ClientRequestWrapper wrapper = null; LOG.Debug($"Client Context: {ctx.GetHashCode()}"); LOG.Debug($"Throttled : {Throttled}"); if (Throttled) { while (Throttled) { LOG.Debug("Still throttled..."); Thread.Sleep(100); } Thread.Sleep(new Random().Next(500)); LOG.Debug("Throttled finished"); } while (retryAttempts < retryCount) { try { if (retry && wrapper != null && wrapper.Value != null) { LOG.Debug("Execute request with wrapper value..."); ctx.RetryQuery(wrapper.Value); LOG.Debug("Execute request with wrapper value finished"); Throttled = false; return; } else { LOG.Debug("Execute request..."); ctx.ExecuteQuery(); LOG.Debug("Execute request finished"); Throttled = false; return; } } catch (WebException ex) { var response = ex.Response as HttpWebResponse; // Check for throttling if (response != null && (response.StatusCode == (HttpStatusCode)429 || response.StatusCode == (HttpStatusCode)503)) { Throttled = true; wrapper = (ClientRequestWrapper)ex.Data["ClientRequest"]; retry = true; string retryAfterHeader = response.GetResponseHeader("Retry-After"); if (!string.IsNullOrEmpty(retryAfterHeader)) { if (!Int32.TryParse(retryAfterHeader, out retryAfterInterval)) { retryAfterInterval = backOffInterval; } } else { retryAfterInterval = backOffInterval; } LOG.Warn($"We got throttled! Will back off for {retryAfterInterval} seconds."); } else { LOG.Debug(ex.StackTrace); throw; } } Thread.Sleep(retryAfterInterval * 1000); retryAttempts++; } throw new MaximumRetryAttemptedException($"Maximum retry attempts '{retryCount}' has been attempted."); } finally { if (LOG.IsDebugEnabled) { TimeSpan duration = DateTime.Now - startTimeStamp; LOG.Debug($"Executed CSOM query in [{duration.TotalMilliseconds.ToString("0.00")}] ms"); } } } We got the 429 error and after that we wait the recommended time until we execute again the request. The request is re-executed using the RetryQuery method. After the method is called, we got no error but the request is not executed. Do you have any ideas why we encounter this problem?