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>________________________________ >From: Simone Tripodi <simonetrip...@apache.org> >To: general@incubator.apache.org >Sent: Sunday, October 2, 2011 3:36 AM >Subject: [VOTE] accept DirectMemory as new Apache Incubator podling > >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 > >--------------------------------------------------------------------- >To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >For additional commands, e-mail: general-h...@incubator.apache.org > > > >
