一段时间以来，Windows 任务计划程序一直存在间歇性问题，我无法解决。我使用任务计划程序运行我编写的 C# 应用程序，该应用程序有各种插件，用于确保生产系统正常运行。
这个任务调度程序本身实际上是一个生产系统，所以我有一个简单的任务，每 8 分钟执行一次，以通知外部监控系统任务调度程序仍然正常运行。如果这个外部服务每 15 分钟至少有一次未能收到“全部清除”消息（我现在不记得确切的数字了），它就会向我们发送消息，告知监控系统已关闭。
过去，我们时不时会收到间歇性的“停机”消息，每次我调查原因时都无法找到任何问题。所以这次我想向 StackOverflow 社区询问，因为看起来我靠自己不太可能有好运。
今天早上 2:32 AM，任务触发（恰好在前一次触发后 8 分钟），但直到 3:28，任务才再次触发。目前，我在事件查看器中看不到任何错误。当我查看任务计划程序日志时，那里也没有错误。但日志如下所示：
Information 6/11/2011 3:28:56 AM 102 Task completed (2) d6cf2412-269e-48bf-9f40-4a863347baad
Information 6/11/2011 3:28:56 AM 201 Action completed (2) d6cf2412-269e-48bf-9f40-4a863347baad
Information 6/11/2011 3:28:55 AM 129 Created Task Process Info
Information 6/11/2011 3:28:55 AM 200 Action started (1) d6cf2412-269e-48bf-9f40-4a863347baad
Information 6/11/2011 3:28:55 AM 100 Task Started (1) d6cf2412-269e-48bf-9f40-4a863347baad
Information 6/11/2011 3:28:55 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:55 AM 107 Task triggered on scheduler Info d6cf2412-269e-48bf-9f40-4a863347baad
Information 6/11/2011 3:28:15 AM 102 Task completed (2) b91fe5ce-39ef-42fb-adbe-bd8be012c00a
Information 6/11/2011 3:28:15 AM 201 Action completed (2) b91fe5ce-39ef-42fb-adbe-bd8be012c00a
Information 6/11/2011 3:28:15 AM 102 Task completed (2) 556c07dc-2724-4a21-a97e-dc4abd56f94d
Information 6/11/2011 3:28:15 AM 201 Action completed (2) 556c07dc-2724-4a21-a97e-dc4abd56f94d
Information 6/11/2011 3:28:15 AM 102 Task completed (2) 79328289-f742-49dd-aa0d-c3d05db50895
Information 6/11/2011 3:28:15 AM 201 Action completed (2) 79328289-f742-49dd-aa0d-c3d05db50895
Information 6/11/2011 3:28:15 AM 102 Task completed (2) 19743755-47b6-4b98-9bec-052193be9496
Information 6/11/2011 3:28:15 AM 201 Action completed (2) 19743755-47b6-4b98-9bec-052193be9496
Information 6/11/2011 3:28:15 AM 102 Task completed (2) c165754f-e3e6-4176-a327-11f9c06c39a5
Information 6/11/2011 3:28:15 AM 201 Action completed (2) c165754f-e3e6-4176-a327-11f9c06c39a5
Information 6/11/2011 3:28:15 AM 102 Task completed (2) 0e62ad3e-1f6e-40c0-9155-19f0108dee22
Information 6/11/2011 3:28:15 AM 201 Action completed (2) 0e62ad3e-1f6e-40c0-9155-19f0108dee22
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) 0e62ad3e-1f6e-40c0-9155-19f0108dee22
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) c165754f-e3e6-4176-a327-11f9c06c39a5
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) 19743755-47b6-4b98-9bec-052193be9496
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) 79328289-f742-49dd-aa0d-c3d05db50895
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) 556c07dc-2724-4a21-a97e-dc4abd56f94d
Information 6/11/2011 3:28:10 AM 129 Created Task Process Info
Information 6/11/2011 3:28:10 AM 200 Action started (1) b91fe5ce-39ef-42fb-adbe-bd8be012c00a
Information 6/11/2011 3:28:10 AM 100 Task Started (1) 0e62ad3e-1f6e-40c0-9155-19f0108dee22
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 100 Task Started (1) c165754f-e3e6-4176-a327-11f9c06c39a5
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 100 Task Started (1) 19743755-47b6-4b98-9bec-052193be9496
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 100 Task Started (1) 79328289-f742-49dd-aa0d-c3d05db50895
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 100 Task Started (1) 556c07dc-2724-4a21-a97e-dc4abd56f94d
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 100 Task Started (1) b91fe5ce-39ef-42fb-adbe-bd8be012c00a
Information 6/11/2011 3:28:10 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info 0e62ad3e-1f6e-40c0-9155-19f0108dee22
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info c165754f-e3e6-4176-a327-11f9c06c39a5
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info 19743755-47b6-4b98-9bec-052193be9496
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info 79328289-f742-49dd-aa0d-c3d05db50895
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info 556c07dc-2724-4a21-a97e-dc4abd56f94d
Information 6/11/2011 3:28:10 AM 107 Task triggered on scheduler Info b91fe5ce-39ef-42fb-adbe-bd8be012c00a
Information 6/11/2011 2:32:56 AM 102 Task completed (2) 16e4f2c3-a340-410a-9c14-4bfe0861fdd5
Information 6/11/2011 2:32:56 AM 201 Action completed (2) 16e4f2c3-a340-410a-9c14-4bfe0861fdd5
Information 6/11/2011 2:32:55 AM 129 Created Task Process Info
Information 6/11/2011 2:32:55 AM 200 Action started (1) 16e4f2c3-a340-410a-9c14-4bfe0861fdd5
Information 6/11/2011 2:32:55 AM 100 Task Started (1) 16e4f2c3-a340-410a-9c14-4bfe0861fdd5
Information 6/11/2011 2:32:55 AM 319 Task Engine received message to start task (1)
Information 6/11/2011 2:32:55 AM 107 Task triggered on scheduler Info 16e4f2c3-a340-410a-9c14-4bfe0861fdd5
似乎有点奇怪。我还有两个其他 C# 应用程序，它们使用任务计划程序每小时运行并检查一些内容。如果我查看它们的历史记录，我可以看到它们也没有在凌晨 3 点执行！它们也都等到 3:28 才启动。
如果我查看事件查看器中的“已完成的任务”，它会显示只有一项任务能够在凌晨 2:32 至凌晨 3:28 之间运行。该任务是“\Microsoft\Windows\RAC\RACAgent”
它看起来是这样的：
Information 6/11/2011 3:18:09 AM 102 Task completed (2) 00c53a85-ba20-4666-80db-fbbe2492c0ad
Information 6/11/2011 3:18:09 AM 201 Action completed (2) 00c53a85-ba20-4666-80db-fbbe2492c0ad
Information 6/11/2011 3:18:08 AM 129 Created Task Process Info
Information 6/11/2011 3:18:08 AM 200 Action started (1) 00c53a85-ba20-4666-80db-fbbe2492c0ad
Information 6/11/2011 3:18:08 AM 100 Task Started (1) 00c53a85-ba20-4666-80db-fbbe2492c0ad
Information 6/11/2011 3:18:08 AM 319 Task Engine received message to start task (1)
我非常感谢任何人提出的想法。
答案1
您的计划任务是否在 hyper-v 虚拟服务器上运行？
它可能已被其 hyper-v 主机暂停以进行维护（备份、缺少共享资源......）。
答案2
您在这段时间内是否正在运行任何备份？我的系统正在运行系统范围的备份，并且计划的任务在备份完成之前不会完成（这是任务实际运行的时间）。