I'm seeing it as well - majority of connections are being dropped for us atm
The Amazon S3 team recently completed some maintenance
changes to Amazon S3’s DNS configuration for the US STANDARD region on
July 30th, 2015.
You are receiving this email because we noticed that your bucket
is still receiving requests on the IP addresses which were removed
from DNS rotation. These IP addresses will be disabled on August
10th at 11:00 am PDT, at which time any requests still using
those addresses will receive an HTTP 503 response status code.
Applications should use the published Amazon S3 DNS names for
US STANDARD: either s3.amazonaws.com or s3-external-2.amazonaws.com
with their associated time to live (TTL) values. Please refer to
our documentation at:
http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region
for more information on Amazon S3 DNS names.
Something to do with that perhaps? AWS sent us that last thursday
