Amazon web services AWS ECS:503服务暂时不可用

我部署了一个简单的Express服务器，它为Angle7应用程序执行SSR。它运行时没有问题，但一段时间后，请求会导致503服务暂时不可用的响应

“我的服务”中的“事件”选项卡显示我的任务正在耗尽和重新启动，但没有其他异常。我在实例的ecs代理日志中没有看到任何奇怪的东西，其他我的任务发送容器停止/启动事件

从我的服务的“事件”选项卡：

af81a908-d0ae-4f8d-a19f-4f5723053c71
2019-03-26 13:15:28 -0700
service ui has started 1 tasks: task 61e77740-7b6a-4785-a5c8-9e7581a79745.
8bc7eb29-6a22-4af8-9994-57f2cfd7ad26
2019-03-26 13:14:55 -0700
service ui has begun draining connections on 1 tasks.
cb064206-0ed4-4b68-b528-957175a93196
2019-03-26 13:14:55 -0700
service ui deregistered 1 targets in target-group contrast-fm-target-group
398e8407-17fa-466e-a482-1840f7b9674c
2019-03-26 11:40:31 -0700
service ui has reached a steady state.

从我的实例上的ecs代理日志：

2019-03-26T20:41:02Z [INFO] Managed task [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea]: sending task change event [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea -> STOPPED, Known Sent: RUNNING, PullStartedAt: 2019-03-26 20:40:56.5934327 +0000 UTC m=+24378.048113509, PullStoppedAt: 2019-03-26 20:40:56.769284895 +0000 UTC m=+24378.223965695, ExecutionStoppedAt: 2019-03-26 20:41:02.41672748 +0000 UTC m=+24383.871408417]
2019-03-26T20:41:02Z [INFO] TaskHandler: batching container event: arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea contrast-ui -> STOPPED, Exit 1, , Ports [{3000 80 0.0.0.0 0}], Known Sent: RUNNING
2019-03-26T20:41:02Z [INFO] TaskHandler: Adding event: TaskChange: [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea -> STOPPED, Known Sent: RUNNING, PullStartedAt: 2019-03-26 20:40:56.5934327 +0000 UTC m=+24378.048113509, PullStoppedAt: 2019-03-26 20:40:56.769284895 +0000UTC m=+24378.223965695, ExecutionStoppedAt: 2019-03-26 20:41:02.41672748 +0000 UTC m=+24383.871408417, arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea contrast-ui -> STOPPED, Exit 1, , Ports [{3000 80 0.0.0.0 0}], Known Sent: RUNNING] sent: false
2019-03-26T20:41:02Z [INFO] TaskHandler: Sending task change: TaskChange: [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea -> STOPPED, Known Sent: RUNNING, PullStartedAt: 2019-03-26 20:40:56.5934327 +0000 UTC m=+24378.048113509, PullStoppedAt: 2019-03-26 20:40:56.769284895 +0000 UTC m=+24378.223965695, ExecutionStoppedAt: 2019-03-26 20:41:02.41672748 +0000 UTC m=+24383.871408417, arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea contrast-ui -> STOPPED, Exit 1, , Ports [{3000 80 0.0.0.0 0}], Known Sent: RUNNING] sent: false
2019-03-26T20:41:02Z [INFO] Managed task [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea]: sent task change event [arn:aws:ecs:us-west-2:584648718741:task/13cfb2bc-d40a-4c5b-be47-f73dc2ed28ea -> STOPPED, Known Sent: RUNNING, PullStartedAt: 2019-03-26 20:40:56.5934327 +0000 UTC m=+24378.048113509, PullStoppedAt: 2019-03-26 20:40:56.769284895 +0000 UTC m=+24378.223965695, ExecutionStoppedAt: 2019-03-26 20:41:02.41672748 +0000 UTC m=+24383.871408417]
2019-03-26T20:41:02Z [WARN] DockerGoClient: Unable to decode stats for container d999c0b9afba34f3e7e77e5d34a29c64edb931b1fbc99f53ccfe403c4490db9f: context canceled
2019-03-26T20:41:02Z [INFO] Container d999c0b9afba34f3e7e77e5d34a29c64edb931b1fbc99f53ccfe403c4490db9f is terminal, stopping stats collection
2019-03-26T20:41:04Z [INFO] Saving state! module="statemanager"

---

由于某种原因，您的应用程序负载平衡器似乎没有响应ECS运行状况检查调用

检查是否正确指向返回HTTP

200

的路由。此外，请检查您的应用程序是否未阻止到应用程序正在运行的端口的通信

---

更多信息。

感谢您的回复！我检查了我的目标组配置，它指向主页，返回

200

。我的服务的安全组也没有阻止来自我的应用程序正在运行的端口的通信。嘿，你检查过任务日志或任务状态了吗？有时，您可以在任务屏幕（控制台）中获得更多信息，说明容器为何处于停止状态。似乎ALB无法到达容器，这就是它重新启动容器的原因。在ALB的目标群体中，这些容器是否曾经进入运行状态？