Cloud Storage metrics seem to be underreporting since 20 June

[pfath]

Cloud Storage metrics seem to be underreporting by about 65% . We suddenly, around June 20, started to see a substantial drop in our metrics for "Received bytes" and API requests for Cloud Storage. Checking all our other related metrics (error metrics, our internal metrics), nothing seems to corroborate this drop-off. Looking at our billing data, it also seems Google is still billing us for a stable amount of usage, not a 65% dropoff.

Has anyone else seen anything like this?

Cloud Storage metrics (y-axis hidden for confidentiality):

Billing Metrics for GCP Replication (this is a multi-region bucket):

[Manish_B]

Hello @pfath,

Thank you for contacting the Google Cloud Community.

I have gone through your reported issue, however it seems like this is an issue observed specifically at your end.  It would need more specific debugging and analysis. To ensure a faster resolution and dedicated support for your issue, I kindly request you to file a support ticket by clicking here. Our support team will prioritize your request and provide you with the assistance you need.

We appreciate your cooperation!

Thanks & Regards,  

Manish Bavireddy.