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S3 request metrics filter and billing

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I'm looking into possible ways to track access to S3 objects, and one that came up are request metrics filters. However, the documentation has me highly confused about what I am getting myself into.

After activating one filter, all 9 request filters are showing up for the bucket in cloudwatch. So what I wonder now is, if I add more filters, does each count as 9 metrics for billing purposes and for the 1000-metrics per bucket limit, or have the 9 metrics just been added with the first filter and any subsequent filter does not increase the total count of billed metrics? I cannot find a clear, unambiguous answer to that question anywhere.

1 Answer
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Hello.

I think each metric created with a filter enabled is counted individually.
In other words, if nine metrics are created, they will be counted as nine metrics.
https://docs.aws.amazon.com/AmazonS3/latest/userguide/metrics-configurations.html

I'm also curious about the exact information, so I'm currently contacting AWS support.
I'll share the information once I have it.

EXPERT

answered 9 months ago

  • I received an answer from AWS Support. In other words, if you create a filter and nine metrics are created, that will count as nine metrics.

  • Thanks! The question is more, Once those 9 metrics are created, and I create another filter for these nine metrics, do they count as 9 additional metrics, or does it stay at those 9, just with two filters?

  • If there are two filters, the number of metrics will increase accordingly, so it will be counted twice as many, at 18.

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