Author: lewismc
Date: Sun Mar 17 01:19:39 2013
New Revision: 1457352
URL: http://svn.apache.org/r1457352
Log:
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+Title: About Apache Gora™
+
+Why Gora?
+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 in-memory
+data model and persistence for big data framework with data store specific
mappings and built
+in [Apache Hadoop™](http://hadoop.apache.org) 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 [Apache
HBase™](http://hbase.apache.org),
+ [Apache Cassandra™](http://cassandra.apache.org),
[Hypertable](http://hypertable.org/);
+ key-value stores such as
[Voldermort](http://www.project-voldemort.com/voldemort),
[Redis](http://redis.io/),
+ etc; SQL databases, such as [MySQL](http://www.mysql.com/),
[HSQLDB](http://hsqldb.org/), flat files
+ in local file system of [Hadoop
HDFS](http://hadoop.apache.org/docs/stable/hdfs_user_guide.html);
+* Data Access : An easy to use Java-friendly common API for accessing the data
regardless of its location;
+* Indexing : Persisting objects to [Apache Lucene](http://lucene.apache.org)
and
+ [Apache Solr](http://lucene.apache.org/solr) indexes, accessing/querying the
data with Gora API;
+* Analysis : Accesing the data and making analysis through adapters for
[Apache Pig](http://pig.apache.org),
+ [Apache Hive](http://hive.apache.org) and
[Cascading](http://www.cascading.org/);
+* MapReduce support : Out-of-the-box and extensive
+ [MapReduce](http://hadoop.apache.org/docs/stable/mapred_tutorial.html)
([Apache Hadoop™](http://hadoop.apache.org))
+ 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 [Apache
Hadoop™](http://hadoop.apache.org).
+* Gora uses [Apache Avro](http://avro.apache.org) 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 [Apache
Pig](http://pig.apache.org),
+ [Apache Lucene](http://lucene.apache.org), [Apache
Hive](http://hive.apache.org), etc.
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--- gora/cms_site/trunk/content/index.md (original)
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+Title: Welcome to Apache Gora™
+
+Welcome to the Apache Gora project!
+
+What is Apache Gora?
+The Apache Gora open source framework provides an in-memory data model and
persistence
+for big data. Gora supports persisting to column stores, key value stores,
document
+stores and RDBMSs, and analyzing the data with extensive [Apache
Hadoop™](http://hadoop.apache.org)
+[MapReduce](http://hadoop.apache.org/docs/stable/mapred_tutorial.html) support.
+
+Gora graduated from the Apache incubator in January 2012 to become a top-level
Apache project.
+
+## Quick shortcuts
+I would like to ...
+
+* ... [download Gora](/downloads.html)
+* ... [use Gora with Maven or Ivy](/downloads.html#Maven and Ivy)
+* ... [find out more about Gora](/about.html)
+* ... [see who's involved](/credits.html)
+* ... [see how to get started with Gora](/current/overview.html)
+* ... [go to the tutorial](/current/tutorial.html)
+* ... [report a bug](/issue_tracking.html)
+* ... [get help using Gora](/mailing_lists.html)
+* ... [contribute to the project!](/contribute.html)
+* ... [read the Javadoc](/current/javadoc/index.html)
+* ... get the [RDF DOAP descriptor for Gora](/current/doap_Gora.rdf)
+
+
+
+
+
+ <section>
+ <title>News</title>
+
+ <section>
+ <title>12 September, 2012: Apache Gora at ApacheCon EU 2012</title>
+ <p>
+ <a title="ApacheCon EU 2012" href="http://www.apachecon.eu/";>
+ <img
+
src="http://www.apache.org/events/logos-banners/ApacheCon-2012-Europe/EU_speaker_wide_25.png";
+ class="float-right" alt="ApacheCon Logo"/>
+ </a>
+ After an absence of several years, the <a
href="http://apache.org/";><b>Apache Software Foundation</b></a> is pleased to
announce that <a href="http://apachecon.com/";><b>ApacheCon</b></a> is returning
to Europe in 2012! <a href="http://www.apachecon.eu/";><b>ApacheCon EU Community
Edition 2012</b></a> will be held between the 5th and 8th of November, at the
Rhein-Neckar-Arena in Sinsheim, Germany... and guess what? Gora is coming along
for the ride! The <a href="http://www.apachecon.eu/proposals/91/";>proposal</a>
entitled <i><b>From Incubation to Continuous Ingestion - The Story of Apache
Gora</b></i> has been included in the <a
href="http://www.apachecon.eu/tracks/#big-data";><b>Big Data</b></a> track. We
look forward to seeing you in November in Germany.
+ </p>
+ </section>
+
+ <section>
+ <title>24 August, 2012: Apache Gora successfully participates in
Google Summer of Code 2012</title>
+ <p>The jury has been out, the results are in and we are extremely
proud to announce that the <a
href="https://google-melange.appspot.com/gsoc/proposal/review/google/gsoc2012/renato2099/1";><b>Gora
- Amazon DynamoDB datastore for Gora</b></a> project has come out on top in
this years <a
href="http://www.google-melange.com/gsoc/homepage/google/gsoc2012";>Google
Summer of Code</a>. We can now bear the fruits of success in this years program
as it marks a first for Gora and will surely reap long term benefits for the
community as a whole. A huge congratulations to this years student Renato
Javier MarroquiÃÂn Mogrovejo for his work over the summer, as a community we
look forward to your continued presence within the project and beyond.
+ </p>
+ </section>
+
+ <section>
+ <title>07 August, 2012: Apache Gora 0.2.1 released</title>
+ <p>The Apache Gora team are proud to announce the release of Gora
0.2.1. This point-oh! release offers users large improvements within the
gora-cassandra module including a number of bug fixes, significant upgrades to
Apache Cassandra and Hector Client API usage and a number of improvements to
the gora-core API. The Maven artifacts for the project are published
+ to <a href="http://repo1.maven.org/maven2/org/apache/gora/";>Maven
Central</a>.
+ See the <a
href="http://www.apache.org/dist/gora/0.2.1/CHANGES.txt";>0.2-CHANGES.txt</a>
+ file for a full list of changes in this release or alternatively the
<a
href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12311172&version=12322496";>Jira
release report</a>.
+ </p>
+ </section>
+
+ <section>
+ <title>24 April, 2012: Apache Gora 0.2 released</title>
+ <p>The Apache Gora team are proud to announce the release of Gora 0.2,
our first since graduating from the Apache
+ Incubator. This release boasts an assortment of over 50 improvements
over our previous incubating release with artifacts
+ available both within Maven Central and from official Apache mirrors.
The Maven artifacts for the project are published
+ to <a href="http://repo1.maven.org/maven2/org/apache/gora/";>Maven
Central</a>.
+ See the <a
href="http://www.apache.org/dist/gora/0.2-CHANGES.txt";>0.2-CHANGES.txt</a>
+ file for a full list of changes in this release.
+ </p>
+ </section>
+
+ <section>
+ <title>23 April, 2012: Apache Gora Amazon DynamoDB project accepted as
Google Summer of Code project</title>
+ <p>The Apache Gora team are very happy to announce conformation that
the green light has been given for a Gora
+ <a href="http://aws.amazon.com/dynamodb/";>Amazon Dynamo DB</a>
project within the remit of this years
+ <a
href="http://www.google-melange.com/gsoc/homepage/google/gsoc2012";>Google
Summer of Code</a>.
+ See the official project proposal <a
href="http://www.google-melange.com/gsoc/proposal/review/google/gsoc2012/renato2099/1";>here</a>.
+ </p>
+ </section>
+
+ <section>
+ <title>24 January, 2012: Apache Gora Graduates to Top Level Project at
the Apache Software Foundation</title>
+ <p>The biggest event within Apache Gora's history was revealed on
24/01/2012 when it was announced that Apache Gora
+ was to be established as a Top Level Project entity within the Apache
Software Foundation. This is excellent news for
+ the Gora community and we are looking forward to tackling the benefits
and challenges brought by our new Top Level status.
+ </p>
+ </section>
+
+ <section>
+ <title>15 January, 2012: Apache Gora announces full support for <a
href="ext:hector"><b>Hector Client</b>:</a></title>
+ <p>Some time ago, the Apache Gora development team made the decision
to support Hector as the
+ primary Apache Cassandra client. This decision enables Gora to build
on the expressiveness offered by the
+ Hector API, some features include:
+ <li>high level, simple object oriented interface to cassandra. </li>
+ <li>failover behavior on the client side.</li>
+ <li>connection pooling for improved performance and scalability.</li>
+ <li>JMX counters for monitoring and management.</li>
+ <li>configurable and extensible load balancing (round robin (the
default), least active, and a phi-accrural style response time detector).</li>
+ <li>complete encapsulation of the underlying Thrift API and
structs.</li>
+ <li>automatic retry of downed hosts.</li>
+ <li>automatic discovery of additional hosts in the cluster.</li>
+ <li>suspension of hosts for a short period of time after several
timeouts.</li>
+ <li>simple ORM layer that works.</li>
+ <li>a type-safe approach to dealing with Apache Cassandraââ¬â¢s
data model.</li>
+ As an Apache community we value community over code, this move is
definately a step in the right direction towards
+ bringing together two diverse communities, whilst during process
undoubtably making both Apache Gora and Hector better
+ technologies. Here at Gora we look forward to working with the Hector
community.
+ </p>
+ </section>
+
+ <section>
+ <title>24 September, 2011: Apache Gora 0.1.1-incubating release</title>
+ <p>The Apache Gora project made its second incubating release. This
+ release improves the Maven artifacts for the project and publishes
them
+ in useable form to <a
href="http://repo1.maven.org/maven2/org/apache/gora/";>Maven Central</a>.
+ See the <a
href="http://www.apache.org/dist/incubator/gora/CHANGES-0.1.1-incubating.txt";>CHANGES.txt</a>
+ file for a full list of changes in this release.
+ </p>
+ </section>
+
+ <section>
+ <title>06 April, 2011: Apache Gora 0.1-incubating release</title>
+ <p>The Apache Gora project made its first incubating release. See the
+ <a
href="http://archive.apache.org/dist/incubator/gora/0.1-incubating/CHANGES-0.1-incubating.txt";>CHANGES.txt</a>
+ file for a full list of changes in this release.
+ </p>
+ </section>
+
+ <section>
+ <title>26 September, 2010: Gora in Apache Incubator </title>
+ <p>Gora has been accepted to the Apache Incubator and started it's life
+ as a candidate Apache project. </p>
+ </section>
+
+ </section>
+
+ <section>
+ <title>Apache Gora Trademark Attribution</title>
+ <p>Apache Gora, Gora, Apache, the Apache feather logo, and the Apache
Gora project logo are trademarks of The Apache Software Foundation.</p>
+ </section>
+
![http://www.apache.org/events/logos-banners/ApacheCon-2012-Europe/EU_speaker_wide_25.png"](http://www.apache.org/events/logos-banners/ApacheCon-2012-Europe/EU_speaker_wide_25.png"){kind=link}
