Category Archives: Hadoop

NOC Displays

Blekko Graphing: D3JS, ChartIO, Highcharts, Google Charts, GD Graphing Samples: flickr/webopsviz, Spinn3r 3.0 admin console Deep Visualization: blekko’s ambient cluster health visualization Resources Slides from Spinn3r Architecture Talk at 2008 MySQL Users Conference Technical Specifications Overview of Spinn3r.com and the … Continue reading

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Cassandra Database Summit 2013 San Francisco

Cassandra Database Summit 2013 was another great conference by DataStax, held at historic Fort Mason in San Francisco. The fort’s various barracks were used as meeting rooms. It made for a long trip from San Jose, but it was interesting … Continue reading

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Percona Live MySQL Conference And Expo 2013

The Percona Live MySQL Conference was held once again at the Santa Clara Convention Center. Percona did a great job of organizing the show, with a good program, full exhibits area, and a few thousand attendees. Oracle even sent speakers … Continue reading

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OSCON 2012, Portland

Back to Portland for the 2012 O’Reilly Open Source Conference (OSCON) @oscon. The main themes this year were: looks like 2012 is the year that the Redhat GlusterFS distributed filesystem really takes off. Gluster is the first DFS ready for … Continue reading

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Linux Leap Second Bug Increased CPU and Power Consumption

The Linux kernel has struggled with leap seconds since at least 2005. Fascinating graph below of a data center’s (Hetzner in Germany) additional power consumption after the most recent (2012) leap second bug was triggered: Leap second bug caused power … Continue reading

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