Microsoft for years has been warning the world not to use open-source software. Apparently, its Kumo search team didn't get the memo.

Kumo will weigh heavily on open source.
(Credit: Screenshot by Ina Fried/CNET)

As The Register reports, Microsoft's new Kumo search technology is filled with open source and, in fact, the Kumo search team, formerly Powerset, "tr(ies) to use open-source software, if it is available."

In other words, open-source software appears to be the default choice for the Kumo team, not proprietary software. It looks like Microsoft's anti-open-source bubble really has burst.

Indeed, reading through the Powerset-turned-Microsoft-Kumo team's description of its approach reads like it was written by an open source-friendly IBM:

Instead of creating a proprietary copy of these pieces of infrastructure, Powerset decided instead to turn to Hadoop, a Lucene subproject that is a framework for running data-intensive applications on large clusters of commodity hardware...Unfortunately, there was no Hadoop equivalent to Google's BigTable storage engine.

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