dos71253
2018-04-13 04:09
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fmt.Println输出未显示在CloudWatch日志中

I created a simple Go Lambda to play with, using the Serverless framework. I expected (as per the documentation) that all output from fmt.Println or log.Println would show up in Cloudwatch. But I don't see it.

Here's an example of a line I put in purely for testing purposes:

func Handler(request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
    fmt.Println("Hello from lambda")

    (...)

I'm certain the permissions are correct, because I see the log-group, and there are Cloudwatch entries to view for this lambda. I can actually see the log-group being created in CloudFormation, so I'm sure that's not the issue. But I just don't see the output from any Println statements in CloudWatch. This is what I do see:

START RequestId: fd48461b-3ecd-11e8-9e32-594932db04f2 Version: $LATEST
END RequestId: fd48461b-3ecd-11e8-9e32-594932db04f2
REPORT RequestId: fd48461b-3ecd-11e8-9e32-594932db04f2  Duration: 13.82 ms  Billed Duration: 100 ms Memory Size: 256 MB Max Memory Used: 21 MB  

I've tried various other Print methods (like Printf), but you won't be surprised that didn't change anything.

What am I missing?

图片转代码服务由CSDN问答提供 功能建议

我使用无服务器框架创建了一个简单的Go Lambda来玩。 我希望(根据文档) fmt.Println log.Println 的所有输出都将显示在Cloudwatch中。 但是我看不到。

下面是我纯粹出于测试目的而放入的一行示例:

  func Handler(request events.APIGatewayProxyRequest)(事件。  APIGatewayProxyResponse,错误){
 fmt.Println(“你好,来自lambda”)
 
(...)
   
 
 

我确定权限是 正确,因为我看到了日志组,并且有Cloudwatch条目可供查看此lambda。 我实际上可以看到在CloudFormation中创建的日志组,所以我确定这不是问题所在。 但是我只是没有在CloudWatch中看到任何 Println 语句的输出。 这是我要做的所看到的:

  START RequestId:fd48461b-3ecd-11e8-9e32-594932db04f2版本:$ LATEST 
END RequestId:fd48461b-  3ecd-11e8-9e32-594932db04f2 
REPORT RequestId:fd48461b-3ecd-11e8-9e32-594932db04f2持续时间:13.82 ms计费持续时间:100 ms内存大小:256 MB使用的最大内存:21 MB 
    
 
 

我尝试了其他各种 Print 方法(例如 Printf ),但是您不会对此没有任何改变感到惊讶。

我想念什么?

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