オープンソース開発者がDeNAを選ぶ理由This document discusses the history and capabilities of Q4M, an open-source message queue plugin for MySQL. It was created in 2008 by Cybozu to provide a robust, fast messaging system accessible via SQL. Major Japanese companies like DeNA, Livedoor and Mixi use Q4M for asynchronous communication between services. The document also covers related projects like Mycached, a memcached-like plugin, and
Kazuho@Cybozu Labs: My Slides at YAPC::Asia 2010 (Writing Prefork Servers / Workers, Unix Programming with Perl)
