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From: Tom White <tomwhite@apache.org>
Date: Wed, 22 Sep 2010 09:22:03 -0700
Message-ID: <AANLkTimdTH3kFeJpZ+WbF0wRH-d0bO_+Z9Q5Cew82GJ0@mail.gmail.com>
Subject: Re: [VOTE] Accept Gora into the Apache Incubator
To: general@incubator.apache.org
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+1 (binding)

Tom

On Sun, Sep 19, 2010 at 8:21 PM, Mattmann, Chris A (388J)
<chris.a.mattmann@jpl.nasa.gov> wrote:
> Hi Folks,
>
> Over the past week or so we've been discussing the Gora project and bring=
ing
> it into the Apache Incubator [1]. It's time to call a VOTE thread on the
> issue. Please VOTE below:
>
> [ ] +1 Accept Gora into the Apache Incubator.
> [ ] +0 Don't care.
> [ ] -1 Don't accept Gora into the Apache Incubator because...
>
> I'll leave the VOTE open for the remainder of the week (ending on 9/24).
> Here's my +1 (IPMC binding).
>
> [1] http://s.apache.org/MPw
>
> Cheers,
> Chris
>
> P.S. The wiki text for the proposal is pasted below.
>
> ----------
> Gora Proposal for Apache Incubation
>
> Abstract
> Gora is an ORM framework for column stores such as Apache HBase and Apach=
e
> 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 thei=
r
> 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 th=
e
> 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 a=
nd
> 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; S=
QL
> databases, such as MySQL, HSQLDB, flat files in local file system of Hado=
op
> 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 <http://wiki.apache.org/incubator/MapReduce> =C2=A0support :
> Out-of-the-box and extensive MapReduce
> <http://wiki.apache.org/incubator/MapReduce> =C2=A0(Apache Hadoop) suppor=
t 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 tha=
t:
> * 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-increasi=
ng
> 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 clie=
nt
> for many Apache projects and subprojects including Hadoop(common, hdfs, a=
nd
> mapreduce), HBase, Cassandra, Avro, Lucene, Solr, Pig, and Hive. Gora
> already uses Hadoop, HBase, Cassandra and Avro. Moreover, Gora started it=
s
> 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 wh=
o
> are also ASF members. All the developers have extensive experience with
> Apache projects. We honor the meritocracy policy of ASF foundation.
>
> Community
> Gora=E2=80=99s community mostly overlap with that of Nutch, Hadoop, HBase=
, Avro and
> Cassandra. We =C2=A0have a small community for now (5 initial committers,=
 18
> people tracking the project at Github), but have been piggybacking the Nu=
tch
> community for a while. If Gora is accepted to Apache Incubator, we expect
> more traction. Moreover, with the increasing popularity of NoSQL database=
s,
> we expect more users.
>
> Core Developers
> Gora was started by the initial code base inside Apache Nutch by Do=C4=9F=
acan
> G=C3=BCney. Then Enis S=C3=B6ztutar has refactored and re-architected the=
 project out
> of Nutch. Later Julien Nioche, Andrzej Bialecki and Do=C4=9Facan has port=
ed Nutch
> to use the newly formed project. Later, Sertan Alkan has joined. Do=C4=9F=
acan 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, G=
ora
> is tightly related with lots of Apache projects, Nutch, Hadoop, HBase,
> Cassandra, Avro, Pig, Hive, Lucene to name a few. Gora has started its li=
fe
> 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 Do=C4=9Facan for now. Both of=
 them
> intent to continue Gora development. However, we also acknowledge that mo=
re
> 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 Cassandr=
a
> mailing lists.
>
> Inexperience with Open Source
> We believe that all of the developers have extensive open source experien=
ce.
> Four of the initial committers are apache members. The codebase is also o=
pen
> source since April 2010. We also have some documentation, wiki pages, iss=
ue
> tracker and dev mailing list.
>
> Homogeneous Developers
> We have a semi-distributed development environment where Do=C4=9Facan, En=
is and
> Sertan share the same office, but Andrzej and Julien are independent. Wit=
h
> the aim of acquiring more developers, we expect more heterogeneous
> development.
>
> Reliance on Salaried Developers
> Gora development have been supported by ant.com
> <http://wiki.apache.org/incubator/ant.com> =C2=A0search engine as contrac=
t work.
> It is expected that this contract will continue in the future. However, e=
ven
> without sponsors, we are commited to continue on Gora development, since =
we
> believe in the technology it brings and it=E2=80=99s 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=E2=80=99s initial code base. N=
ow, Nutch
> trunk uses Gora as a library. The next relase of Nutch, planned before th=
e
> end of 2010 will be using Gora=E2=80=99s first release.
> *
> * Hadoop : Gora has extensive support for Hadoop MapReduce
> <http://wiki.apache.org/incubator/MapReduce> =C2=A0Gora defines all the n=
ecessary
> data structures for working with Hadoop .Data stored in column oriented d=
ata
> stores can be analyzed =C2=A0with 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 th=
e
> 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 : =C2=A0Gora 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 depend=
ing
> 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 =C2=A0http://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=E2=80=99s 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/ - =C2=A0Apache-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
> * =C2=A0 =C2=A0Name =C2=A0 =C2=A0 =C2=A0 =C2=A0 email =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Affiliation =C2=A0 Timezone
> * =C2=A0 =C2=A0Enis S=C3=B6ztutar =C2=A0 =C2=A0 =C2=A0enis [at] apache.or=
g =C2=A0 =C2=A0 =C2=A0 =C2=A0 Konneka =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 +3
> * =C2=A0 =C2=A0Do=C4=9Facan G=C3=BCney =C2=A0 =C2=A0 =C2=A0dogacan [at] a=
pache.org =C2=A0 =C2=A0 =C2=A0Konneka =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 +3
> * =C2=A0 =C2=A0Sertan Alkan =C2=A0 =C2=A0 =C2=A0 sertanalkan [at] gmail.c=
om =C2=A0 Konneka =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 +3
> * =C2=A0 =C2=A0Julien Nioche =C2=A0 =C2=A0 =C2=A0jnioche [at] apache.org =
=C2=A0 =C2=A0 =C2=A0DigitalPebble
> <http://wiki.apache.org/incubator/DigitalPebble> =C2=A0 =C2=A0 =C2=A0 =C2=
=A0+1
> * =C2=A0 =C2=A0Andrzej Bialecki =C2=A0 ab [at] apache.org =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 Sigram
> * =C2=A0 =C2=A0Andrew Hart =C2=A0 =C2=A0 =C2=A0 =C2=A0ahart [at] apache.o=
rg =C2=A0 =C2=A0 =C2=A0 =C2=A0NASA JPL =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0-8
> * =C2=A0 =C2=A0Dave Woollard =C2=A0 =C2=A0 =C2=A0woollard [at] apache.org=
 =C2=A0 =C2=A0 NASA JPL =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0-8
> * =C2=A0 =C2=A0Henry Saputra =C2=A0 =C2=A0 =C2=A0hsaputra [at] apache.org=
 =C2=A0 =C2=A0 Yahoo! =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0-8
>
> =C2=A0Affiliations
> =C2=A0All of the parties are affiliated with companies and organizations =
that are
> =C2=A0familiar with the development of open source . Most of the original=
 Gora
> =C2=A0development was sponsored by ant.com, however we expect that the am=
ount of
> =C2=A0volunteer work will increase, and more developers will come on boar=
d.
>
> =C2=A0Sponsors
> =C2=A0Champion
> =C2=A0* Chris Mattmann (mattmann AT apache DOT org)
> =C2=A0Nominated Mentors
> =C2=A0* Chris Mattmann (mattmann AT apache DOT org)
> =C2=A0* Andrzej Bialecki (ab AT apache DOT org )
> =C2=A0* Tom White (tomwhite AT apache DOT org)
> =C2=A0Sponsoring Entity
> =C2=A0Apache Incubator. Successful graduation can result in either being =
a TLP,
> or a subproject of =C2=A0Hadoop, 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: =C2=A0 http://sunset.usc.edu/~mattmann/
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Adjunct Assistant Professor, Computer Science Department
> University of Southern California, Los Angeles, CA 90089 USA
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
>

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