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From Tommaso Teofili <tommaso.teof...@gmail.com>
Subject Re: [PROPOSAL] Gora to enter Incubator
Date Tue, 14 Sep 2010 07:33:04 GMT
+1 (not binding)
Tommaso

2010/9/13 Mohammad Nour El-Din <nour.mohammad@gmail.com>

> +1 (Not binding)
>
> On Mon, Sep 13, 2010 at 4:46 PM, Mattmann, Chris A (388J)
> <chris.a.mattmann@jpl.nasa.gov> wrote:
> > My +1 to this proposal, but we certainly need at least one more mentor,
> please, if you’re interested sign up.
> >
> > Thanks!
> >
> > Cheers,
> > Chris
> >
> >
> >
> > On 9/13/10 6:10 AM, "Enis Soztutar" <enis.soz.nutch@gmail.com> wrote:
> >
> > Hi all,
> >
> > We would like to announce the Proposal for Gora, an ORM for Colum Stores,
> > for the Apache Incubation. We believe that Gora can find a nice home at
> > Apache.
> >
> > Wiki of the proposal can be found at
> > http://wiki.apache.org/incubator/GoraProposal
> >
> > The proposal is as below.
> >
> >
> > = Gora Proposal for Apache Incubation =
> >
> > == Abstract ==
> > Gora is an ORM framework for column stores such as Apache HBase and
> Apache
> > Cassandra with a specific focus on Hadoop.
> >
> > == Proposal ==
> > Although there are various excellent ORM frameworks for relational
> > databases, data modeling in NoSQL data stores differ profoundly from
> their
> > relational cousins. Moreover, data-model agnostic frameworks such as JDO
> are
> > not sufficient for use cases, where one needs to use the full power of
> the
> > data models in column stores. Gora fills this gap by giving the user an
> > easy-to-use ORM framework with data store specific mappings and built in
> > Apache Hadoop support.
> >
> > The overall goal for Gora is to become the standard data representation
> and
> > persistence framework for big data. The roadmap of Gora can be grouped as
> > follows.
> >
> >  * Data Persistence : Persisting objects to Column stores such as HBase,
> > Cassandra, Hypertable; key-value stores such as Voldermort, Redis, etc;
> SQL
> > databases, such as MySQL, HSQLDB, flat files in local file system of
> Hadoop
> > HDFS.
> >  * Data Access : An easy to use Java-friendly common API for accessing
> the
> > data regardless of its location.
> >  * Indexing : Persisting objects to Lucene and Solr indexes,
> > accessing/querying the data with Gora API.
> >  * Analysis : Accesing the data and making analysis through adapters for
> > Apache Pig, Apache Hive and Cascading
> >  * MapReduce support : Out-of-the-box and extensive MapReduce (Apache
> > Hadoop) support for data in the data store.
> >
> > == Background ==
> > ORM stands for Object Relation Mapping. It is a technology which abstacts
> > the persistency layer
> > (mostly Relational Databases) so that plain domain level objects can be
> > used, without the cumbersome effort to save/load the data to and from the
> > database. Gora differs from current solutions in that:
> >  * Gora is specially focussed at NoSQL data stores, but also has limited
> > support for SQL databases
> >  * The main use case for Gora is to access/analyze big data using Hadoop.
> >  * Gora uses Avro for bean definition, not byte code enhancement or
> > annotations
> >  * Object-to-data store mappings are backend specific, so that full data
> > model can be utilized.
> >  * Gora is simple since it ignores complex SQL mappings
> >  * Gora will support persistence, indexing and anaysis of data, using
> Pig,
> > Lucene, Hive, etc
> >
> > == Rationale ==
> > ORM frameworks are nothing new. But with the explosion of data generated
> in
> > Terabytes and even Petabytes, NoSQL data stores are gaining
> ever-increasing
> > popularity. Coupled with limited support to already-proven Apache Hadoop
> > support in current ORM frameworks, there was a need for a new project.
> >
> > Gora is currently hosted at Github. However, Gora has ties to ASF in many
> > ways. As detailed in the proposal section, Gora will be a high level
> client
> > for many Apache projects and subprojects including Hadoop(common, hdfs,
> and
> > mapreduce), HBase, Cassandra, Avro, Lucene, Solr, Pig, and Hive. Gora
> > already uses Hadoop, HBase, Cassandra and Avro. Moreover, Gora started
> its
> > life inside Apache Nutch project, and now Nutch trunk uses Gora as a
> > library. Even more, the initial set of committers are all ASF members.
> > Therefore, we think that Apache will be an excellent home for Gora.
> >
> > == Initial Goals ==
> > Initial goals for Gora can be summarized as:
> >  * Iron out the remaining issues with HBase, Cassandra and SQL support.
> >  * Make the first release before the end of the year.
> >  * Improve documentation
> >  * Support for Cascading
> >
> > == Current Status ==
> > === Meritocracy ===
> > Current commit rights belong to the initial list of committers four of
> who
> > are also ASF members. All the developers have extensive experience with
> > Apache projects. We honor the meritocracy policy of ASF foundation.
> >
> > === Community ===
> > Gora’s community mostly overlap with that of Nutch, Hadoop, HBase, Avro
> and
> > Cassandra. We
> > have a small community for now (5 initial committers, 18 people tracking
> the
> > project at Github), but have been piggybacking the Nutch community for a
> > while. If Gora is accepted to Apache Incubator, we expect more traction.
> > Moreover, with the increasing popularity of NoSQL databases, we expect
> more
> > users.
> >
> > === Core Developers ===
> > Gora was started by the initial code base inside Apache Nutch by Doğacan
> > Güney. Then Enis Söztutar has refactored and re-architected the project
> out
> > of Nutch. Later Julien Nioche, Andrzej Bialecki and Doğacan has ported
> Nutch
> > to use the newly formed project. Later, Sertan Alkan has joined. Doğacan
> and
> > Julien are Nutch PMC members, Andrzej is the Nutch PMC chair. Enis is an
> > Apache Hadoop PMC member.
> >
> > === Alignment ===
> > As discusssed in the second paragraph of Rationale Section, all of the
> > current developers are Apache people, and four of them are PMC members,
> > which shows that we have some experience with the Apache way. Moreover,
> Gora
> > is tightly related with lots of Apache projects, Nutch, Hadoop, HBase,
> > Cassandra, Avro, Pig, Hive, Lucene to name a few. Gora has started its
> life
> > inside Nutch, and now nutch trunk uses Gora to persist web crawl data to
> > HBase, Cassandra and MySQL, which means that Gora is a very critical
> > component in Nutch.
> >
> > == Known Risks ==
> > === Orphaned Products ===
> > Most of the development depends on Enis and Doğacan for now. Both of them
> > intent to continue Gora development. However, we also acknowledge that
> more
> > core developers are needed for the project to be truly successful. The
> > general strategy to acquire more developers will be to acquire more
> users,
> > and encourage users to be active in the community and develop patches.
> > Moreover, the next release of Nutch planned before the end of 2010 has
> > extensive Gora support. We expect more interest from Nutch community, and
> we
> > will continue to announce Gora notifications at Hadoop,HBase and
> Cassandra
> > mailing lists.
> >
> > === Inexperience with Open Source ===
> > We believe that all of the developers have extensive open source
> experience.
> > Four of the initial committers are apache members. The codebase is also
> open
> > source since April 2010. We also have some documentation, wiki pages,
> issue
> > tracker and dev mailing list.
> >
> > === Homogeneous Developers ===
> > We have a semi-distributed development environment where Doğacan, Enis
> and
> > Sertan share the same office, but Andrzej and Julien are independent.
> With
> > the aim of acquiring more developers, we expect more heterogeneous
> > development.
> >
> > === Reliance on Salaried Developers ===
> > Gora development have been supported by [[ant.com]]  search engine as
> > contract work. It is expected that this contract will continue in the
> > future. However, even without sponsors, we are commited to continue on
> Gora
> > development, since we believe in the technology it brings and it’s vital
> > role in Nutch, and our other closed sourced projects.
> >
> > === Relationships with Other Apache Products ===
> > Gora will be tightly related to lots of Apache projects:
> >
> >  * Nutch : Apache nutch was to home to Gora’s initial code base. Now,
> Nutch
> > trunk uses Gora as a library. The next relase of Nutch, planned before
> the
> > end of 2010 will be using Gora’s first release.
> >  * Hadoop : Gora has extensive support for Hadoop MapReduce Gora defines
> all
> > the necessary data structures for working with Hadoop .Data stored in
> column
> > oriented data stores can be analyzed  with Gora using Hadoop.
> >  * Avro : Gora uses and extends Avro. Data beans in Gora are defined
> using
> > Avro schemas ,and compiled into Java code with the extended version of
> the
> > Avro compiler. Avro is also used in data serialization.
> >  * HBase : Gora supports HBase as a persistency backend.
> >  * Cassandra : Gora support Cassandra as a persistency backend.
> >  * Lucene/Solr : Gora intends to support Lucene/Solr as a persistency and
> > indexing backend.
> >  * Pig : Gora intends to support Pig for data anaysis
> >  * Hive :  Gora intends to support Hive for data analysis
> >
> > === An Excessive Fascination with the Apache Brand ===
> > Gora is a natural fit for Apache due to it's current commiters and
> depending
> > projects.
> >
> > == Documentation ==
> >  * The project is currently hosted at http://github.com/enis/gora/.
> >  * Wiki pages can be found at http://wiki.github.com/enis/gora/.
> >  * List of issues can be found at  http://github.com/enis/gora/issues/.
> >  * Current web address: http://groups.google.com/group/gora-dev.
> >  * Current email address: gora-dev@googlegroups.com.
> >
> > == Initial Source ==
> > The initial source was developed as a patch to the Apache Nutch project.
> But
> > the storage abstraction layer was orthogonal to the web crawler, and we
> > decided to extract it to a separate project with much wider goals. Thus
> > Gora, as a project, was born. The initial code is developed by Enis and
> > Dogacan with ant.com’s sponsorship.
> >
> > The code can be found at http://github.com/enis/gora/.
> >
> > == External Dependencies ==
> > External dependencies excluding Apache projects are as follows
> >  * JDOM - http://jdom.org/ -  Apache-style license
> >  * SQL Builder - http://openhms.sourceforge.net/sqlbuilder/ - Artistic
> > License, LGPL. SQL Builder is intended to be removed from the source due
> to
> > technical reasons anyway.
> >  * HSQLDB - http://hsqldb.org/ - BSD-style license
> >  * JUnit - http://junit.org - Common Public License 1.0
> >  * SLF4J - http://www.slf4j.org/ - MIT License
> >  * Google Guava Libraries - http://code.google.com/p/guava-libraries/ -
> > Apache License 2.0
> >
> >
> > == Required Resources ==
> >
> > === Mailing Lists ===
> >
> >  * gora-private (with moderated subscriptions)
> >  * gora-dev
> >  * gora-commits
> >
> > === Subversion Directory ===
> >
> >  * [[http://svn.apache.org/repos/asf/incubator/gora]]
> >
> > === Issue Tracking ===
> >  * JIRA (GORA)
> >
> > === Other Resources ===
> > We need a wiki at http://wiki.apache.org. Currently, we have a wiki at
> > Github, Since there is not a lot of pages there, we can manually move the
> > pages to the wiki at wiki.apache.org.
> >
> > == Initial Committers ==
> >
> > Name                   email
> > Affiliation        Timezone
> > Enis Söztutar       enis [at] apache.org           Konneka         +3
> > Doğacan Güney  dogacan [at] apache.org    Konneka         +3
> > Sertan Alkan       sertanalkan [at] gmail.com Konneka         +3
> > Julien Nioche       jnioche [at] apache.org      DigitalPebble  +1
> > Andrzej Bialecki   ab [at] apache.org             Sigram
> >
> >
> > === Affiliations ===
> > All of the parties are affiliated with open source consulting shops. Most
> of
> > the development was sponsored by ant.com, however we expect that the
> amount
> > of volunteer work will increase, and more developers will come on board.
> >
> > == Sponsors ==
> >
> > === Champion ===
> >  * Chris Mattmann (mattmann AT apache DOT org)
> >
> > === Nominated Mentors ===
> >  * Chris Mattmann (mattmann AT apache DOT org)
> >  * Andrzej Bialecki (ab AT apache DOT org )
> >
> > === Sponsoring Entity ===
> > Apache Incubator. Successful graduation can result in either being a TLP,
> or
> > a subproject of
> > Hadoop, since most of the community is projected to overlap.
> >
> >
> >
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > Chris Mattmann, Ph.D.
> > Senior Computer Scientist
> > NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
> > Office: 171-266B, Mailstop: 171-246
> > Email: Chris.Mattmann@jpl.nasa.gov
> > WWW:   http://sunset.usc.edu/~mattmann/
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > Adjunct Assistant Professor, Computer Science Department
> > University of Southern California, Los Angeles, CA 90089 USA
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >
> >
>
>
>
> --
> Thanks
> - Mohammad Nour
>   Author of (WebSphere Application Server Community Edition 2.0 User Guide)
>   http://www.redbooks.ibm.com/abstracts/sg247585.html
> - LinkedIn: http://www.linkedin.com/in/mnour
> - Blog: http://tadabborat.blogspot.com
> ----
> "Life is like riding a bicycle. To keep your balance you must keep moving"
> - Albert Einstein
>
> "Writing clean code is what you must do in order to call yourself a
> professional. There is no reasonable excuse for doing anything less
> than your best."
> - Clean Code: A Handbook of Agile Software Craftsmanship
>
> "Stay hungry, stay foolish."
> - Steve Jobs
>
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