The First Cry of Atom

Historically, there are a lot of researches about data structure and algorithms. This is a core field of computer science from the past. I’m especially interested in hash table among them because it is simple data structure and widely used but there are a lot of inspiring ideas in hash... [Read More]

ListenableFuture is a Future interface implementation in Google Guava library. Since it has compatibility with Future, you can replace Future with ListenableFuture. ListenableFuture provides a mechanism of lister callback in addition features of Future. The result of Future should be fetched by main thread later but ListenableFuture call the callback... [Read More]

普段分散システムやデータベースの開発やメンテナンスをしているけれど、体系立ってデータベースのアカデミックな研究に触れたことがなかったのでCMU 15-721を一通り見てみようと思った。なぜこれを勉強してみようと思ったかというと周りの人が何人もおすすめをしていたからだ。少しずつ勉強してみたい。 [Read More]

At the end of the last year, CircleCI 2.0 was released as closed beta. The main differences are described here. So according to the migration guide, I want to make a list to be noted when you migrate your project toward CircleCI 2.0. Of course for myself. [Read More]

Twitter seems to have moved their infrastructure to NodeJS from Scala. [Read More]