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Date: Mon, 3 Oct 2011 11:23:36 +0530
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 <CAMEEY-+f+bJy+KdhpjFoDwe301UFurAyRBFBm2ia9Qs-KgXLEQ@mail.gmail.com>
Subject: Re: [VOTE] accept DirectMemory as new Apache Incubator podling
From: Vinod Kumar Vavilapalli <vinodkv@hortonworks.com>
To: general@incubator.apache.org
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Very interesting project.

+1 (non-binding).

Thanks,
+Vinod


On Sun, Oct 2, 2011 at 1:06 PM, Simone Tripodi <simonetripodi@apache.org>wrote:

> Hi all guys,
>
> I'm now calling a formal VOTE on the DirectMemory proposal located here:
>
> http://wiki.apache.org/incubator/DirectMemoryProposal
>
> Proposal text copied at the bottom of this email.
>
> VOTE close on Tuesday, October 4, early 7:30 AM CET.
>
> Please VOTE:
>
> [ ] +1 Accept DirectMemory into the Apache Incubator
> [ ] +0 Don't care
> [ ] -1  Don't Accept DirectMemory into the Apache Incubator because...
>
> Thanks in advance for participating!
>
> All the best, have a nice day,
> Simo
>
> P.S. Here's my +1
>
> http://people.apache.org/~simonetripodi/
> http://www.99soft.org/
>
> = DirectMemory =
>
> == Abstract ==
> The following proposal is about Apache !DirectMemory, a Java
> !OpenSource multi-layered cache implementation featuring off-heap
> memory storage (a-la Terracotta !BigMemory) to enable caching of Java
> objects without degrading JVM performance
>
> == Proposal ==
> !DirectMemory's main purpose is to to act as a second level cache
> (after a heap based one) able to store large amounts of data without
> filling up the Java heap and thus avoiding long garbage collection
> cycles. Although serialization has a runtime cost store/retrieve
> operations are in the sub-millisecond range being pretty acceptable in
> every usage scenario even as a first level cache and, most of all,
> outperforms heap storage when the count of the entries goes over a
> certain amount. !DirectMemory implements cache eviction based on a
> simple LFU (Least Frequently Used) algorythm and also on item
> expiration. Included in the box is a small set of utility classes to
> easily handle off-heap memory buffers.
>
> == Background ==
> !DirectMemory is a project was born in the 2010 thanks to Raffaele P.
> Guidi initial effort under
> [[https://github.com/raffaeleguidi/!DirectMemory/|GitHub]] and already
> licensed under the Apache License 2.0.
>
> == Rationale ==
> The rationale behind !DirectMemory is bringing off-heap caching to the
> open source world, empowering FOSS developers and products with a tool
> that enables breaking the heap barrier and override the JVM garbage
> collection mechanism collection - which could be useful in scenarios
> where RAM needs are over the usual limits (more than 8, 12, 24gb) and
> to ease usage of off-heap memory in general
>
> = Current Status =
>
> == Meritocracy ==
> As a majority of the initial project members are existing ASF
> committers, we recognize the desirability of running the project as a
> meritocracy.  We are eager to engage other members of the community
> and operate to the standard of meritocracy that Apache emphasizes; we
> believe this is the most effective method of growing our community and
> enabling widespread adoption.
>
> == Core Developers ==
> In alphabetical order:
>
>  * Christian Grobmeier <grobmeier at apache dot org>
>  * Maurizio Cucchiara <mcucchiara at apache dot org>
>  * Olivier Lamy <olamy at apache dot org>
>  * Raffaele P. Guidi <raffaele dot p dot guidi at gmail dot com>
>  * Simone Gianni <simoneg at apache dot org>
>  * Simone Tripodi <simonetripodi at apache dot org>
>  * Tommaso Teofili <tommaso at apache dot org>
>
> == Alignment ==
> The purpose of the project is to develop and maintain !DirectMemory
> implementation that can be used by other Apache projects.
>
> = Known Risks =
> == Orphaned Products ==
> !DirectMemory does not have any reported production usage, yet, but is
> getting traction with developers and being evaluated by potential
> users and thus the risks of it being orphaned are minimal
>
> == Inexperience with Open Source ==
> All of the committers have experience working in one or more open
> source projects inside and outside ASF.
>
> == Homogeneous Developers ==
> The list of initial committers are geographically distributed across
> the Europe with no one company being associated with a majority of the
> developers.  Many of these initial developers are experienced Apache
> committers already and all are experienced with working in distributed
> development communities.
>
> == Reliance on Salaried Developers ==
> To the best of our knowledge, none of the initial committers are being
> paid to develop code for this project.
>
> == Relationships with Other Apache Products ==
> !DirectMemory fits naturally in the ASF because it could be
> successfully employed together with a large number of ASF products
> ranging from JCS - as a new cache region between the heap and indexed
> file ones, to ORM systems like Cayenne (i.e. replacing current OSCache
> based implementation), Apache JDO and JPA implementations and also
> java based databases (i.e. Derby) and all systems managing large
> amounts of data from Hadoop to Cassandra
>
> == A Excessive Fascination with the Apache Brand ==
> While the Apache Software Foundation would be a good home for the
> !DirectMemory project it already has some traction and it could live
> on its own - however we see reciprocal benefits for both the ASF and
> the project in adopting the brand to better reach the community
>
> = Documentation =
>  1. [[https://github.com/raffaeleguidi/DirectMemory|The original
> DirectMemory HomePage]]
>  2. [[https://github.com/raffaeleguidi/DirectMemory/wiki|The original
> DirectMemory Wiki]]
>  3. [[https://github.com/raffaeleguidi/DirectMemory/issues|The
> DirectMemory Issue Tracker (used also for enhancements, feature
> requests and discussion)]]
>
> = Initial Source =
> The intial source comprises code developed on
> [[https://github.com/raffaeleguidi/DirectMemory/|GitHub]] contributed
> under Grant from Raffaele P. Guidi for Directmemory.
>
> = Source and Intellectual Property Submission Plan =
> Source code will be moved from
> [[https://github.com/raffaeleguidi/DirectMemory/|GitHub]] space inside
> the SVN space of the podling.
>
> = External Dependencies =
>  * Google Guava collections -
> http://code.google.com/p/guava-libraries/ - Apache License V2.0
>  * Protostuff - http://code.google.com/p/protostuff/ - Apache License V2.0
>  * JoSQL - http://josql.sourceforge.net/ - Apache License V2.0
>  * AspectJ - http://www.eclipse.org/org/ - Eclipse Public License
> (Category B, used only in binary form)
>  * SLF4J - http://www.slf4j.org/ - MIT License (Category A)
>  * Logback - http://logback.qos.ch/ - dual licensed under EPL v1.0 and
> LGPL 2.1 (Category B, but not really a dependency as it is astracted
> by the SLF4j facade)
> '''Build/Test time dependencies'''
>  * Maven - http://maven.apache.org/ - Apache License V2.0
>  * JUnit - http://www.junit.org/ - CPL License v1.0 - (Category B,
> used only in binary form)
>  * JUnit Benchmarks -
> http://labs.carrotsearch.com/junit-benchmarks.html - Apache License
> V2.0
>
> = Cryptography =
> The project does not handle cryptography in any way.
>
> = Required Resources =
>  * Mailing lists
>  * directmemory-private (with moderated subscriptions)
>  * directmemory-dev
>  * directmemory-user
>  * directmemory-commits
>  * Subversion directory
>  * https://svn.apache.org/repos/asf/incubator/directmemory
>  * Website
>  * Wiki (!DirectMemory)
>  * Issue Tracking
>  * JIRA (!DirectMemory)
>
> = Initial Committers =
> Names of initial committers - in alphabetical order - with current ASF
> status:
>
>  * Christian Grobmeier <grobmeier at apache dot org> (ASF Member)
>  * Ioannis Canellos <iocanel at apache dor org> (ASF Committer)
>  * Maurizio Cucchiara <mcucchiara at apache dot org> (ASF Committer)
>  * Olivier Lamy <olamy at apache dot org> (ASF Member)
>  * Raffaele P. Guidi <raffaele dot p dot guidi at gmail dot com> (ICLA
> Signed)
>  * Simone Gianni <simoneg at apache dot org> (ASF Member)
>  * Simone Tripodi <simonetripodi at apache dot org> (ASF Member)
>  * Tommaso Teofili <tommaso at apache dot org> (ASF Member)
>
> = Sponsors =
> == Champion ==
>  * Christian Grobmeier <grobmeier at apache dot org>
>
> == Nominated Mentors ==
>  * Anthony Elder <antelder at apache dor org>
>  * Christian Grobmeier <grobmeier at apache dot org>
>  * Olivier Lamy <olamy at apache dot org>
>  * Sylvain Wallez <sylvain at apache dot org>
>  * Tim Williams <twilliams at apache dot org>
>
> == Sponsoring Entity ==
>  * The Apache Incubator
>
> = Other interested people (in alphabetical order) =
>  * TBD
>
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