我们如何防止azure函数处理已经处理过的blob? [英] How can we prevent an azure function from processing already processed blob?

问题描述

我有一个azure函数，该函数绑定到Blob存储.成功处理Blob之后，我用后缀'-Processed'重命名该文件.

I have an azure function, which is binded to blob storage. Once the blob is successfully processed I rename the file with a suffix '-Processed'.

但是我的azure函数再次拾取相同的blob进行处理.我尝试将{name} .csv过滤器放入BlobTrigger绑定中，但这没有帮助，因为即使重命名后该文件仍将是csv.

But my azure function again picks up the same blob for processing. I tried putting {name}.csv filter in the BlobTrigger binding but that didn't help as the file will still be a csv even after the rename.

我知道我可以过滤blob以在文件名中包含特定字符串，例如"original- {name}"将过滤以原始文件开头的文件. 但是，在azure函数中，有没有一种方法可以过滤blob名称以使其不包含特定字符串(在我的情况下为"-Processed")?

I know I can filter blobs to have a particular string in file name, for eg "original-{name}" will filter files starting with original. But Is there a way in azure functions using which I can filter the blob names to not include a particular string, in my case '-Processed'?

推荐答案

1. 只需对已处理和未处理的blob使用两条不同的路径.
2. 重命名删除前缀时，请使用前缀(例如"notprocessed-")放置新的blob.设置"path": "input/notprocessed-{name}"

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