运行状态机时,ECS 任务因 InsufficientFreeAddressesInSubnet 错误而失败

问题描述

我有一个状态机,它包含一个 Map 任务,该任务启动了许多 Fargate 任务(30 多个),这是一个非常相似的任务定义。任务之间的唯一区别是 ContainerOverrides 块中的环境变量。

任务定义:

"CalculateTask": {
    "Type": "Task","Resource": "arn:aws:states:::ecs:runTask.sync","Retry": [
        {
            "ErrorEquals": [
                "States.ALL"
            ],"IntervalSeconds": 10,"MaxAttempts": 2,"BackoffRate": 1.5
        }
    ],"Parameters": {
        "LaunchType": "FARGATE","Cluster": "arn:aws:ecs:region:111111111:cluster/cluster-name","TaskDeFinition": "arn:aws:ecs:region:111111111:task-deFinition/task-deFinition:44","NetworkConfiguration": {
            "AwsvpcConfiguration": {
                "subnets": [
                    "subnet-1111111111111111","subnet-2222222222222222","subnet-3333333333333333"
                ],...
            }
        },"Overrides": {
            "ContainerOverrides": [
                {
                    "Name": "Phase-1-start","Environment": [
                        {
                            "Name": "COMMAND","Value": "calculateGas/Oil/PeakGas..."
                        }
                    ]
                }
            ]
        }
    }
}

当我运行 State Machibe 任务时,这个 StoppedReason 总是失败:

"StopCode": "TaskFailedToStart","StoppedAt": 1618584363236,"StoppedReason": "Unexpected EC2 error while attempting to Create Network Interface with public IP assignment 
    enabled in subnet 'subnet-2222222222222222': InsufficientFreeAddressesInsubnet",

我不明白为什么会出现这个问题,我提供了 3 个子网 ID 供 ECS 选择。

解决方法

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