Question

工作代码：

import boto3
def lambda_handler(event, context):
    ec2 = boto3.client('ec2')

    # Get list of regions
    regions = ec2.describe_regions().get('Regions',[] )

    # Iterate over regions
    for region in regions:
        print("*************** Checking region  --   %s " % region['RegionName'])
        reg = region['RegionName']
        print(reg)

输出：

*************** Checking region  --   eu-north-1 
eu-north-1
*************** Checking region  --   ap-south-1 
ap-south-1
*************** Checking region  --   eu-west-3 
eu-west-3
*************** Checking region  --   eu-west-2 
eu-west-2
*************** Checking region  --   eu-west-1

它迭代并显示所有区域，但是在我尝试描述资源详细信息之后，我的代码只是在第一次迭代时退出。

import boto3
def lambda_handler(event, context):
    ec2 = boto3.client('ec2')

    # Get list of regions
    regions = ec2.describe_regions().get('Regions',[] )

    # Iterate over regions
    for region in regions:
        print("*************** Checking region  --   %s " % region['RegionName'])
        reg = region['RegionName']
        print(reg)
        print ("+++++++++++++ Starting EC2 Instances now -----------------") 
        client = boto3.client('ec2', region_name=reg)
        response = client.describe_instances()

输出错误输出：

Response:
{
  "errorMessage": "2019-03-14T18:08:00.104Z 5fb67a9a-3bf9-40e3-ad56 Task timed out after 3.00 seconds"
}

Request ID:
"5fb67a9a-3bf9-40e3-ad56"

Function Logs:
START RequestId: 5fb67a9a-3bf9-40e3-ad56 Version: $LATEST
*************** Checking region  --   eu-north-1 
eu-north-1
+++++++++++++ Starting EC2 Instances now -----------------
*************** Checking region  --   ap-south-1 
ap-south-1
+++++++++++++ Starting EC2 Instances now -----------------
END RequestId: 5fb67a9a-3bf9-40e3-ad56
REPORT RequestId: 5fb67a9a-3bf9-40e3-ad56-Duration: 3003.21 ms  Billed Duration: 3000 ms    Memory Size: 128 MB Max Memory Used: 79 MB  
2019-03-14T18:08:00.104Z 5fb67a9a-3bf9-40e3-ad56-Task timed out after 3.00 seconds

我已授予lambda角色所有访问权限。谁能帮助我我在做什么错以及如何知道错误所在？

Answer 1

您的代码成功地迭代了eu-north-1和ap-south-1，但是在默认的Lambda超时3秒后超时。您需要使代码运行更快或延长Lambda超时。

转到您的Lambda console
找到您的功能并打开它
向下滚动并在“基本设置”下查找“超时”
延长超时时间（当前最长为15分钟）
点击顶部的保存

AWS Lambda python描述异常

1 个答案: