我正在高级层中的 Web 应用(应用服务)下运行 Web 作业。它调用 REST API 端点,需要很长时间才能返回响应。Web 作业在 20 分钟后中止,但根据文档,Web 作业可以在后台运行长时间运行的任务。这似乎没有按预期工作。
是否为 Web 作业功能指定了任何最大超时?
编码:
public async Task<HttpResponseMessage> GetAsync(Uri requestUrl)
{
_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", GetAadAuthentication().AccessToken);
var httpResponse = await _httpClient.GetAsync(requestUrl);
if (!httpResponse.IsSuccessStatusCode)
{
ProcessFailedRequest(httpResponse);
}
return httpResponse;
}
异常日志:
[05/26/2017 21:28:01 > 6e349c: ERR ] Unhandled Exception: System.Threading.Tasks.TaskCanceledException: A task was canceled.
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
[05/26/2017 21:28:01 > 6e349c: ERR ] at Util.testWebClient.<GetAsync>d__12.MoveNext() in d:\test\Util\testWebClient.cs:line 99
[05/26/2017 21:28:01 > 6e349c: ERR ] --- End of stack trace from previous location where exception was thrown ---
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
[05/26/2017 21:28:01 > 6e349c: ERR ] at Util.testClient.<GetForecastResultAsync>d__7.MoveNext() in d:\test\Util\testClient.cs:line 135
[05/26/2017 21:28:01 > 6e349c: ERR ] --- End of stack trace from previous location where exception was thrown ---
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
[05/26/2017 21:28:01 > 6e349c: ERR ] at AutoAggregation.Functions.<>c__DisplayClass18_0.<ProcessResultDownloadMessage>b__0(Object workItem) in d:\test\AutoAggregation\Functions.cs:line 198
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading.ThreadPoolWorkQueue.Dispatch()
[05/26/2017 21:28:01 > 6e349c: ERR ] at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()