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The following page has been changed by stack: http://wiki.apache.org/hadoop/Hbase/PoweredBy The comment on the change is: Added Mahalo with Dan Zinngrabe's permission over in hbase-897 ------------------------------------------------------------------------------ - Describe Hbase/PoweredBy here. + [http://www.mahalo.com Mahalo], "...the world's first human-powered search engine". All the markup that powers the wiki is stored in HBase. It's been in use for a few months now. MediaWiki - the same software that power Wikipedia - has version/revision control. Mahalo's in-house editors produce a lot of revisions per day, which was not working well in a RDBMS. An hbase-based solution for this was built and tested, and the data migrated out of MySQL and into HBase. Right now it's at something like 6 million items in HBase. The upload tool runs every hour from a shell script to back up that data, and on 6 nodes takes about 5-10 minutes to run - and does not slow down production at all.
