The Metamarkets team wrote a nice post on their use of Samza a few days ago: https://metamarkets.com/2015/simplicity-stability-and-transp...
Or may be they did not transition and are actually using both, I don't know
[1] https://youtu.be/3Qb_2GGRz24?t=20m24s
[2] https://storm.apache.org/documentation/Powered-By.html
The Metamarkets team wrote a nice post on their use of Samza a few days ago: https://metamarkets.com/2015/simplicity-stability-and-transp...