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Buddhika is currently employeed as a software engineer. He received his BSc. in Computer Science and Engineering from University of Moratuwa. Being an open source enthusiast he has participated in two Google Summer of Code programs at Apache. His current interests include data mining, distributed computing and business process monitoring. Buddhika is a DZone MVB and is not an employee of DZone and has posted 10 posts at DZone. You can read more from them at their website. View Full User Profile

Some Cassandra Gotchas

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Here are some points to keep in mind when working with Cassandra.

  • Have to use ordered partitioner if you want row keys in sorted order. Be aware that if the row keys are not distributed properly it would create hot spots since most of rows will be concentrated to several nodes.
  • Columns are sorted using definitions given when creating the column family but row keys are not sorted according to them.
Published at DZone with permission of Buddhika Chamith, author and DZone MVB.

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John David replied on Wed, 2012/01/25 - 7:07pm

Apache launches Cassandra database project for enterprise use.New Cassandra database can pack two billion columns into a row.

The developers behind Apache Cassandra are confident that their distributed database management system is ready for general enterprise use, and, after three years of development, have released version 1.0 of their open source software.

new java

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