Azure Web 作业超时后无法执行

Question

我的一些连续运行的网络作业功能(随机)显示消息 Timeout value of 00:30:00 exceeded by function '<myfunction>' (Id: '<id>'). Initiating cancellation .

在此消息之后，除非手动停止并启动 Azure Web 作业，否则该函数不会自行执行。

提前致谢。

Answer 1

some of my continuous running web job function(random) show message of Timeout value of 00:30:00 exceeded by function '<myfunction>' (Id: '<id>'). Initiating cancellation.

根据您的错误，我在FunctionExecutor.cs下从Microsoft.Azure.WebJobs.Host找到了相关代码如下:

internal static void OnFunctionTimeout(System.Timers.Timer timer, FunctionDescriptor method, Guid instanceId, TimeSpan timeout, bool timeoutWhileDebugging,
    TraceWriter trace, ILogger logger, CancellationTokenSource cancellationTokenSource, Func<bool> isDebuggerAttached)
{
    timer.Stop();

    bool shouldTimeout = timeoutWhileDebugging || !isDebuggerAttached();
    string message = string.Format(CultureInfo.InvariantCulture,
        "Timeout value of {0} exceeded by function '{1}' (Id: '{2}'). {3}",
        timeout.ToString(), method.ShortName, instanceId,
        shouldTimeout ? "Initiating cancellation." : "Function will not be cancelled while debugging.");

    trace.Error(message, null, TraceSource.Execution);
    logger?.LogError(message);

    trace.Flush();

    // Only cancel the token if not debugging
    if (shouldTimeout)
    {
        // only cancel the token AFTER we've logged our error, since
        // the Dashboard function output is also tied to this cancellation
        // token and we don't want to dispose the logger prematurely.
        cancellationTokenSource.Cancel();
    }
}

我假设您指定了 TimeoutAttribute对于您的功能如下:

我建议您可以使用CancellationToken参数在你的函数中，每当发生超时或主机关闭时，它就会被取消，你可以优雅地退出你的函数，如下所示: