DOCOMO MAIL is 24/7 cloud mail system which has accesses from over 20 million people. This mail s...
DOCOMO MAIL is 24/7 cloud mail system which has accesses from over 20 million people. This mail system stores user's mail archive in OpenStack Swift with Peta Byte scale capacity deployed by NTT DATA.
We have been successfully operating this service since Sep 2014 without any downtime. In this session, we'll present the actual issues and challenges we have faced and conquered.
Here're some specific points we'd like to highlight.
* No service degrade, no downtime.
* Massive scale and still growing.
* Hundreds of servers operated by few people.