在AWS Lambda更新过程中请求发生什么? [英] What happens to request in the middle of an aws lambda update?

问题描述

如果我是

1. 触发AWS Lambda部署/更新
2. 在步骤1结束之前触发对AWS Lambda的请求

请求是否会击中旧的lambda?会出错吗?

Will the request just hit the old lambda? Will it error out?

到目前为止，在我的测试中，似乎没有停机时间"，它几乎可以立即将旧版本换成新版本，尽管新lambda上的第一个请求确实必须进行冷启动.

So far in my testing it seems like there is no "downtime", that it swaps out the old for the new almost instantly--although the first request on the new lambda does have to do a cold start.

推荐答案

您是正确的. IIRC，每个函数调用都使用一个特定的函数ARN，该ARN在您更新该函数时会更改.调用该函数时，您正在使用新的ARN，该ARN仅调用新版本.

You are correct. IIRC, each function invocation uses a specific function ARN, which changes when you update the function. When you invoke the function, you're using the new ARN, which invokes only the new version.

我相信可以继续使用旧功能，显式使用旧ARN(尽管您可能无法从Lambda控制台执行此操作.)

I believe it's possible to continue using the old function, using the old ARN explicitly (though you might not be able to do this from the Lambda console.)

有关更多信息，请参见 http://docs. aws.amazon.com/lambda/latest/dg/versioning-aliases.html

For more info, see http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html

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