AWS Lambda设备上没有剩余空间错误 [英] AWS Lambda No Space Left on Device error

问题描述

我正在使用API​​网关调用lambda函数，该函数从s3导入mpeg文件(10 mb)并保存在lambda的/tmp文件夹中，然后lambda将其上传到外部API(youtube等) 最近，对lambda的API网关调用间歇性地失败，并显示错误

I am using API gateway to call lambda function that imports a mpeg file (10 mb) from s3 and saves in /tmp folder of lambda and the lambda uploads it to external API (youtube etc) Recently the API gateway call to lambda is failing intermittently with error

[Errno 28] No space left on device

这是我下载文件的方式

urllib.urlretrieve (s3_mpeg_url, '/tmp/{}'.format(mpeg_filename))

如果我创建了相同的lambda函数的新版本并分配给指向的别名API网关，它将开始工作，并在某个时刻再次出现相同的错误

If i create a new version of that same lambda function and assign to alias API gateway pointing to , it starts to work and again at some point it keeps getting the same error

当我从lambda控制台测试该lambda函数时，它始终有效

When i test that lambda function from lambda console it always works

有什么主意吗?

推荐答案

您的lambda函数大约有500MB /tmp 上可用的磁盘空间.但是，出于性能原因，AWS Lambda可能会在后续调用中保留并重用您的函数实例.您可以在此处采取两种可能的路径:

Your lambda function has approximately 500MB of disk space available on /tmp. However, for performance reasons, AWS Lambda might retain and reuse instances of your function on subsequent calls. There are two possible paths you can take here:

1. 如果您的函数是完全无状态的(即，将mpeg文件上传到外部API后不需要)，只需在上传后从/tmp文件夹中删除它即可.
2. 如果需要保留数据，请考虑在处理后将其存储在其他介质上，例如S3或DynamoDB.

1. If your function is totally stateless (i.e. you don't need the mpeg file after uploading it to the external API), just delete it from the /tmp folder after the upload.
2. If you need to keep the data around, consider storing it on another media, like S3 or DynamoDB after processing.

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