Video from my presentation at Agile Warsaw

Here’s the video from my presentation and the discussion about

Agile Skills Project and our experiments in motivating developers at my company, that I had a chance to show at Agile Warsaw. Do not ask my why the camera is 100% time focused on the wall, I have no freaking idea :) The voices are there, and that matters. You can either watch it on Parleys: http://parleys.com/d/2019 or right here. Be warned: it’s in Polish.

You May Also Like

Distributed scans with HBase

HBase is by design a columnar store, that is optimized for random reads. You just ask for a row using rowId as an identifier and you get your data instantaneously. Performing a scan on part or whole table is a completely different thing. First of all, it is sequential. Meaning it is rather slow, because it doesn't use all the RegionServers at the same time. It is implemented that way to realize the contract of Scan command - which has to return results sorted by key. So, how to do this efficiently?HBase is by design a columnar store, that is optimized for random reads. You just ask for a row using rowId as an identifier and you get your data instantaneously. Performing a scan on part or whole table is a completely different thing. First of all, it is sequential. Meaning it is rather slow, because it doesn't use all the RegionServers at the same time. It is implemented that way to realize the contract of Scan command - which has to return results sorted by key. So, how to do this efficiently?