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Google Caffeine Drops MapReduce, Adds "Colossus"

Posted by samzenpus on from the time-to-upgrade dept.

An anonymous reader writes "With its new Caffeine search indexing system, Google has moved away from its MapReduce distributed number crunching platform in favor of a setup that mirrors database programming. The index is stored in Google's BigTable distributed database, and Caffeine allows for incremental changes to the database itself. The system also uses an update to the Google File System codenamed 'Colossus.'"

1 of 65 comments (clear)

  1. Re:Well, then. by arivanov · · Score: 0, Troll

    Not quite, this explains why about 2 years back Google search result quality suddenly went down the drain.

    It now had news and key sites in minutes after update so I guess they got more advertising revenue. However the quality of search results on terms not related to news-of-the day actually dropped. Most pundits attributed this to Google losing the war vs blog spam.

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