【问题标题】:Topshelf halts service recovery after third attemptTopshelf 在第三次尝试后停止服务恢复
【发布时间】:2017-11-20 12:51:56
【问题描述】:

我正在使用 Topshelf 创建 Windows 服务。此服务将尝试恢复前 3 次失败,但之后就不再工作了。

在主机上的服务中检查服务显示:

First Failure:          Restart the Service
Second Failure:         Restart the Service
Subsequent Failures:    Restart the Service
Reset fail count after: 1 days
Restart service after:  2 minutes

服务恢复代码如下所示:

f.EnableServiceRecovery(r =>
{
    r.RestartService(2);
    r.RestartService(5);
    r.RestartService(5);
    r.OnCrashOnly();
    r.SetResetPeriod(1);
});

在恢复失败后检查事件日志会显示以下消息:

The MyService service terminated unexpectedly.  It has done this 1 time(s).  The following corrective action will be taken in 120000 milliseconds: Restart the service.
The MyService service terminated unexpectedly.  It has done this 2 time(s).  The following corrective action will be taken in 300000 milliseconds: Restart the service.
The MyService service terminated unexpectedly.  It has done this 3 time(s).  The following corrective action will be taken in 300000 milliseconds: Restart the service.
The MyService service terminated unexpectedly.  It has done this 4 time(s).

从上面可以看出。第四次不触发恢复。

这是 Windows 错误、Topshelf 问题还是我的配置有问题?

【问题讨论】:

    标签: c# windows-services topshelf


    【解决方案1】:

    您必须为 topshelf 恢复设置设置底部配置:

    x.EnableServiceRecovery(rc =>
                    {
                        // Has no corresponding setting in the Recovery dialogue.
                        // OnCrashOnly means the service will not restart if the application returns
                        // a non-zero exit code.  By convention, an exit code of zero means ‘success’.
                        rc.OnCrashOnly();
                        // Corresponds to ‘First failure: Restart the Service’
                        // Note: 0 minutes delay means restart immediately
                        rc.RestartService(delayInMinutes: 0); 
                        // Corresponds to ‘Second failure: Restart the Service’
                        // Note: TopShelf will configure a 1 minute delay before this restart, but the
                        // Recovery dialogue only shows the first restart delay (0 minutes)
                        rc.RestartService(delayInMinutes: 1); 
                        // Corresponds to ‘Subsequent failures: Restart the Service’
                        rc.RestartService(delayInMinutes: 5);
                        // Corresponds to ‘Reset fail count after: 1 days’
                        rc.SetResetPeriod(days: 1); 
                    });
    

    看看sample

    【讨论】:

    • 如果我更改代码“rc.RestartService(delayInMinutes: 5);”到“rc.RestartService(delayInMinutes: 3);”只会影响延迟时间还是Topshelf会采用另一种逻辑?
    • 您的答案中的代码与 OP 中的代码之间的重要/显着区别是什么?
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