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December 01, 2004

Google server metrics revealed

According to the ZNet article, The magic that makes Google tick, Google's vice-president of engineering, Urs Hölzle, was in London talking to prospective employees - and employing a little shock and awe with Google metrics.

According to the report, Google is claimed to have:

Over four billion Web pages, each an average of 10KB, all fully indexed

Up to 2,000 PCs in a cluster

Over 30 clusters

104 interface languages including Klingon and Tagalog

One petabyte* of data in a cluster -- so much that hard disk error rates of 10-15 begin to be a real issue

Sustained transfer rates of 2Gbps in a cluster

An expectation that two machines will fail every day in each of the larger clusters

No complete system failure since February 2000

Something to make most server admin's eyes water.

Glad to notice the Klingon minority are catered for, too. :)

Perhaps more seriously, though, Urs Hölzle seems to have not realised that the Google index was claimed by Google to have increased to nearly 10 billion files.

* 1 petabyte = 1024 terabytes; 1 terabyte = 1024 gigabytes

Posted by at December 1, 2004 06:32 PM

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