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From Apache Wiki <>
Subject [Incubator Wiki] Update of "Cassandra" by Avinash Lakshman
Date Mon, 17 Nov 2008 20:15:55 GMT
Dear Wiki user,

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The following page has been changed by Avinash Lakshman:

New page:

Cassandra is a distributed storage system for managing structured/unstructured data while
providing reliability at a massive scale.


Development of Cassandra started in Facebook in June 2007. It started of a system to solve
the Inbox Search problem and since then has
matured to solve various storage problems associated with structured/unstructured data.


Cassandra is a distributed storage system for managing structured data that is designed to
scale to a very large size across many commodity servers, with no single point of failure.
The philosophy behind the design of the storage portion of Cassandra is that it be able to
satisfy the requirements of applications that demand storage of large amounts of structured
data. Reliability at massive scale is a very big challenge. Outages in the service can have
significant negative impact. Hence Cassandra aims to run on top of an infrastructure of hundreds
of nodes (possibly spread across different datacenters). At this scale, small and large components
fail continuously; the way Cassandra manages the persistent state in the face of these failures
drives the reliability and scalability of the software systems relying on this service.

Initial Source

Intial Source can be obtained from the following site -
The mailing list is currently maintained at the same site.
We will move it over to Apache once this proposal has been accepted.


Avinash Lakshman
Prashant Malik
Kannan Muthukkaruppan
Jiansheng Huang
Dan Dumitriu

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