xanton

In most companies I worked for in Moscow they either don't have strict schedule or tend to shift work hours later in the day (usually 10am-19pm). I think the reason is that it's very uncomfortable to use public transportation during rush hours. Here is what I dealt with if I left home at 8am when I lived there: https://www.youtube.com/watch?v=pjkYStk6vjo

I don't judge them, I was confused by the choice of systems to compare with and thought that I didn't understand article. I think that comparison with MongoDB or RethinkDB would be more appropriate in this case.

Am I right that in a system implementing algorithm explained in the article there is no way to execute operations on two key-value pairs stored in different buckets atomically? For example, two CAS operations that will either both succeed or both fail?

All the theory behind microelectronics is all about about electrons, "holes" and how fast and where they move.

Transactions can have different isolation levels. And sometimes the problem at hand can be implemented using transactions with weak isolation levels which are not that hard to implement using your favorite NoSQL database that support CAS operation. I recommend this article: http://rystsov.info/2012/09/01/cas.html