Another RDBMS/NoSQL snapshot
Facebook isn't the only one swapping MySQL for HBase, the open source distributed database platform based on Google's BigTable. The Hadoopian HBase is now in play at several of the web's most recognizable names – including Adobe, Yahoo!, Mozilla, and StumbleUpon – as well as smaller operations looking to climb their way to such online prominence.
HBase can't replace all MySQL installations, says HBase project chair Michael Stack, but unlike MySQL, it's specifically designed to operate at ginormous scale.
"I don't foresee StumbleUpon ever giving up on all of its MySQL instances. RDBMSs are just too useful," Stack tells The Reg. "The plan, though, is to shrink what MySQL does over time, let MySQL do what its good at and have HBase take over where MySQL is running up against limits handling ever-growing write rates, table sizes, etc."