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From "Brian McCallister" <bri...@skife.org>
Subject Re: [VOTE] Accept Cassandra into the Incubator
Date Sat, 27 Dec 2008 17:13:38 GMT
I consider this to be a high-risk project, and agree with Martjin's
concerns, but do not consider this a bar to entering incubation. The
*reason* Cassandra wants to enter incubation is to address these
weaknesses.

+1

-Brian

On Tue, Dec 23, 2008 at 2:01 PM, Ian Holsman <lists@holsman.net> wrote:
>
> Dear Incubator PMC,
>
> There has been some discussion around the Cassandra proposal,
> and we would now like to officially propose Cassandra to the Incubator
> for consideration..
>
> Please vote on accepting Cassandra project for incubation. The full
> Cassandra proposal is available at the end of this message and as a wiki
> page at http://wiki.apache.org/incubator/Cassandra. We ask the
> Incubator PMC to sponsor the Cassandra podling, with Brian as the Champion,
> and Torsten, Matthieu, and Ian volunteering to mentor as well.
>
> The vote is open for the next 72 hours and only votes from the
> Incubator PMC are binding.
>
> [ ] +1 Accept Cassandra as a new podling
> [ ] -1 Do not accept the new podling (provide reason, please)
>
> ----
> = Abstract =
>
> Cassandra is a distributed storage system for managing
> structured/unstructured data while providing reliability at a massive scale.
>
> = Background =
>
> 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.
>
> = Rationale =
>
> 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 -
> http://the-cassandra-project.googlecode.com/svn/branches/development/. The
> mailing list is currently maintained at the same site.
> We will move it over to Apache once this proposal has been accepted.
>
> = Source and Intellectual Property Submission Plan =
>
> = External Dependencies =
> * All dependencies have Apache compatible licenses. Dependencies are log4j,
> Thrift, Apache Commons.
>
> = Cryptography =
> * None
> = Committers =
>
> * Avinash Lakshman
> * Prashant Malik
> * Kannan Muthukkaruppan
> * Jiansheng Huang
> * Dan Dumitriu
>
> = Current Status =
> == Meritocracy ==
>
> * Though initial development was done at Facebook, Cassandra was intended to
> be released as an open source project from its inception. Environment will
> lend itself to support meritocracy at all times.
>
> == Community ==
> * Folks who are actively considering deploying/prototyping Cassandra in
> their respective organizations.
>
> == Core Developers ==
> * Avinash Lakshman
> * Prashant Malik
> * Kannan Muthukkaruppan
>
> == License ==
> * The Cassandra codebase is Apache 2.0 licensed, and currently hosted at
> Google Code.
> = Known Risks/Avoiding the Warning Signs =
>
> == Orphaned Products ==
> * Cassandra is already deployed within Facebook and many other organizations
> are actively moving to deploy this in production. Original developers
> are and will actively stay involved and hence there is no realistic chance
> of it getting orphaned.
>
> == Homogenous Developers ==
> * The current list of committers includes developers from different
> companies. The committers are geographically distributed across the U.S.
>
> == Reliance on Salaried Developers ==
> * Yes. But don't expect this to be a risk of any nature.
>
> == Relationships with Other Apache Products ==
> * The Cassandra project is 'similar' to hbase/HDFS in concept, but Cassandra
> is more geared for Online web site usage than batch. It also doesn't have a
> single point of failure, which makes it interesting as well.
>
> * Cassandra makes use of the Thrift project.
>
> == An excessive fascination with the Apache brand ==
> * Cassandra has already attracted a stable base of users. There are at least
> 3 companies who are planning to use Cassandra in production as far as we
> know. The reasons for joining Apache are not to advertise the project, but
> rather to demonstrate the commitment to open source by divorcing the trunk
> from any one corporation and pursuing further integration with other Apache
> projects.
>
> = Required Resources =
> == Mailing lists ==
>
>  Once the project is approved, the following mailing lists will be used for
> discussion.
>  * cassandra-user@incubator.apache.org
> <mailto:cassandra-user@incubator.apache.org>
>
> == Subversion Directory ==
>
>  *[WWW] https://svn.apache.org/repos/asf/incubator/cassandra    == Issue
> Tracking ==
>
> * JIRA Cassandra
>
> = Sponsors =
>
> == Champion ==
> * Brian McCallister    == Mentors ==
> * Torsten Curdt    * Brian McCallister
> * Matthieu Riou
> * Ian Holsman
>
> == Sponsoring Entity ==
> * Incubator
>
>
>
>
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