Mysterious multiple 0.01 $ data transfer charges in monthly AWS bill.
How can I stop these mysterious charges on AWS free tier ? I have an EC2 instance ( no RDS ) that exhibits following charges AWS Data Transfer APS3-USE1-AWS-Out-Bytes USD 0.0 $ 0.086 per GB - Asia Pacific (Mumbai) data transfer to US East (Northern Virginia) 0.122 GB
and two more like that.
I researched and best reason I could find out that is something related to Availability zones , I may have enabled multiple availability zones and for some reason there is data transfer between these zones and that is chargeable. I want to stop these charges as the client is on free tier and I assured him that there wont be any charges. I am afraid if data transfer spikes he will incur hundreds of dollars in charges. I have to block it before something like that happens.
I am also attaching the image for reference .
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Hello.
That fee is the transfer fee from the Mumbai Region to the Northern Virginia Region.
https://docs.aws.amazon.com/cur/latest/userguide/cur-data-transfers-charges.html
Such charges are incurred when communication occurs from EC2 to another region.
It is about $0.02 per GB, so I don't think it is that much of a concern unless a large amount of communication occurs.
https://aws.amazon.com/ec2/pricing/on-demand/?nc1=h_ls#Data_Transfer
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That may be so but that is not the intended behaviour, I have to find out the root cause and mitigate this behaviour before it slaps us with a large amount. Any pointers how to figure out what happened there because it's just a stock blog, there is nothing in it right now. We haven't even started development yet. We dont have a s3 bucket and no other services than ec2 , atleast no other services that we know of.