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From Byung-Gon Chun <bgc...@gmail.com>
Subject Re: [DISCUSS] S2Graph Incubator Proposal
Date Fri, 13 Nov 2015 05:01:48 GMT
The proposal looks interesting. I'd love to help as a mentor but I can't
since I'm not an IPMC member.

-Gon

---
Byung-Gon Chun


On Fri, Nov 13, 2015 at 1:55 PM, Atri Sharma <atri.jiit@gmail.com> wrote:

> Really happy to see this proposal.
>
> I am glad to help in any way I can.
> On 13 Nov 2015 10:25, "Hyunsik Choi" <hyunsik@apache.org> wrote:
>
> > @Sergio,
> > I totally agree with you.
> >
> > @Luke Han,
> > I put your name on the initial committer list.
> >
> > I'll call a vote for incubation within few days.
> >
> > Best regards,
> > Hyunsik
> >
> > On Thu, Nov 12, 2015 at 12:45 AM, Luke Han <luke.hq@gmail.com> wrote:
> > > Hi Hyunsik,
> > >     I'm happy to help, GraphDB is interesting to me to analysis
> > qualitative
> > > data beyond quantitative data:)
> > >
> > >     Thanks.
> > > Luke
> > >
> > >
> > > Best Regards!
> > > ---------------------
> > >
> > > Luke Han
> > >
> > > On Thu, Nov 12, 2015 at 9:47 AM, Hyunsik Choi <hyunsik@apache.org>
> > wrote:
> > >
> > >> Hi Luke,
> > >>
> > >> Thank you for your interest in S2Graph project. If you don't mind,
> > >> we'd like to add you to the initial committer list. I think that your
> > >> experience and skills about HBase would be very helpful to S2Graph
> > >> project.
> > >>
> > >> Best regards,
> > >> Hyunsik
> > >>
> > >> On Mon, Nov 9, 2015 at 6:58 PM, Luke Han <luke.hq@gmail.com> wrote:
> > >> > I'm very interesting about this project, would love to help but I'm
> > not
> > >> > IPMC member.
> > >> >
> > >> > Please let me know if there's anything I could help on.
> > >> >
> > >> > Thanks.
> > >> >
> > >> >
> > >> > Best Regards!
> > >> > ---------------------
> > >> >
> > >> > Luke Han
> > >> >
> > >> > On Tue, Nov 10, 2015 at 9:03 AM, Hyunsik Choi <hyunsik@apache.org>
> > >> wrote:
> > >> >
> > >> >> Hi Seetharam,
> > >> >>
> > >> >> Thank you for your volunteering! I've added your name to the mentor
> > >> list.
> > >> >>
> > >> >> I also updated the initial committer list and affiliations via
> google
> > >> >> search.
> > >> >> If I wrote wrong affiliations, please let me know.
> > >> >>
> > >> >> Best regards,
> > >> >> Hyunsik
> > >> >>
> > >> >>
> > >> >> On Mon, Nov 9, 2015 at 4:21 PM, Seetharam Venkatesh
> > >> >> <venkatesh@innerzeal.com> wrote:
> > >> >> > Hi Hyunsik,
> > >> >> >
> > >> >> > If you are still looking for mentors, let me volunteer as
one.
> > >> >> >
> > >> >> > Thanks!
> > >> >> >
> > >> >> > On Mon, Nov 9, 2015 at 3:45 PM Hyunsik Choi <hyunsik@apache.org>
> > >> wrote:
> > >> >> >
> > >> >> >> Thank you all guys  I just put you names on the nominated
mentor
> > >> list.
> > >> >> >>
> > >> >> >> @Andrew,
> > >> >> >>
> > >> >> >> I agree with you. S2Graph already has good relationships
with
> > other
> > >> >> >> ASF projects, such as HBase and Spark,  In addition,
they have a
> > plan
> > >> >> >> to expand its relationship to Apache incubator TinkerPop,
which
> > is a
> > >> >> >> graph computing framework. I'm looking forward to their
> > combinations.
> > >> >> >>
> > >> >> >> @Sergio,
> > >> >> >>
> > >> >> >> Thank you for attending the talk and joining the S2Graph
> mentors.
> > >> That
> > >> >> >> was Doyung Yoon, one of the S2Graph creators. He had
a talk at
> the
> > >> >> >> last ApacheCon.
> > >> >> >>
> > >> >> >> On Mon, Nov 9, 2015 at 11:58 AM, Sergio Fernández <
> > wikier@apache.org
> > >> >
> > >> >> >> wrote:
> > >> >> >> > Hi Hyunsik, I attended your talk at the last ApacheCon,
and I
> > >> think S2
> > >> >> >> has
> > >> >> >> > quite some potential. So if you need a mentor, count
me in!
> > >> >> >> >
> > >> >> >> > On Mon, Nov 9, 2015 at 7:54 PM, Hyunsik Choi <
> > hyunsik@apache.org>
> > >> >> wrote:
> > >> >> >> >
> > >> >> >> >> This project is looking for mentors. Anyone
can help? We are
> > also
> > >> >> >> >> looking forward to any feedback.
> > >> >> >> >>
> > >> >> >> >> Also, I attached the proposal here. I forgot
it.
> > >> >> >> >>
> > >> >> >> >> ----------------
> > >> >> >> >>
> > >> >> >> >> = S2Graph Proposal =
> > >> >> >> >>
> > >> >> >> >> == Abstract ==
> > >> >> >> >> S2Graph is a distributed and scalable OLTP graph
database
> > built on
> > >> >> >> >> HBase to support fast traversal on extremely
large graph.
> > >> >> >> >>
> > >> >> >> >> Here are additional materials to introduce S2Graph.
> > >> >> >> >>  * HBaseCon 2015 -
> > >> >> >> http://www.slideshare.net/HBaseCon/use-cases-session-5
> > >> >> >> >>  * Apache: Big Data 2015 -
> > >> >> >> >>
> > >> >>
> > http://schd.ws/hosted_files/apachebigdata2015/06/s2graph_apache_con.pdf
> > >> >> >> >>
> > >> >> >> >> == Proposal ==
> > >> >> >> >> S2Graph is to provide a scalable distributed
graph database
> > engine
> > >> >> >> >> over key/value storage such as HBase. S2Graph
provide fully
> > >> >> >> >> ashynchronous API to manupulate data as property
graph model
> > and
> > >> fast
> > >> >> >> >> breadth first search query on graph.
> > >> >> >> >>
> > >> >> >> >> == Background ==
> > >> >> >> >> S2Graph initially started as an internal project
at Kakao.com
> > to
> > >> >> >> >> efficiently store user relation and user activities
as one
> > large
> > >> >> graph
> > >> >> >> >> and provide unified query to traverse graph.
It was open
> > sourced
> > >> on
> > >> >> >> >> Github about a 3 months ago in June 2015.
> > >> >> >> >>
> > >> >> >> >> Over time S2Graph, together with HBase as storage
tier, has
> > begun
> > >> to
> > >> >> >> >> be adapted into various applications, such as
messaging,
> social
> > >> >> feeds,
> > >> >> >> >> realtime recommendations at Kakao.
> > >> >> >> >>
> > >> >> >> >> Users can benefit from S2Graph`s generalized
high level API
> > >> instead
> > >> >> of
> > >> >> >> >> low-level key/value API for graph abstraction,
just like
> > Phoenix
> > >> >> >> >> provide SQL layer over HBase.
> > >> >> >> >>
> > >> >> >> >> == Rationale ==
> > >> >> >> >> Graph data(highly interconnected data) is very
abundant and
> > >> important
> > >> >> >> >> these days.
> > >> >> >> >> When users have a multitude of relationships,
each with
> complex
> > >> >> >> >> properties associated with them, graph model
is more
> intuitive
> > and
> > >> >> >> >> efficient than tabular format(RDBMS).
> > >> >> >> >> There are many ASF projects that provide SQL
layer, but there
> > is
> > >> no
> > >> >> >> >> ASF projects that provide scalable graph layer
on existing
> > hadoop
> > >> >> echo
> > >> >> >> >> system.
> > >> >> >> >> When graph data grows to trillion edge scale,
the process of
> > >> >> >> >> traversing takes a long time and costly. However,
with the
> > >> benefit of
> > >> >> >> >> HBase`s scalable architecture, S2Graph can traverse
large
> > graph in
> > >> >> >> >> breadth first search manner efficiently.
> > >> >> >> >>
> > >> >> >> >> S2Graph also interoperates with several existing
Apache
> > >> >> >> >> projects(HBase, Spark) to provide way to merge
real time
> events
> > >> and
> > >> >> >> >> batch processed data using property graph data
model.
> > >> >> >> >>
> > >> >> >> >> Many developers are running their own domain
specific API
> > servers
> > >> to
> > >> >> >> >> serve their data products, but graph model is
general and
> > S2Graph
> > >> API
> > >> >> >> >> fully support traverse on graph, so it can be
used as
> scalable
> > >> >> general
> > >> >> >> >> purpose API serving layer for various domains.
> > >> >> >> >> As long as data can be modeled as graph, then
users can avoid
> > >> tedious
> > >> >> >> >> work for developing customized API servers by
using S2Graph.
> > >> >> >> >>
> > >> >> >> >> == Initial Goals ==
> > >> >> >> >> The initial goals will be to move the existing
codebase to
> > Apache
> > >> and
> > >> >> >> >> integrate with the Apache development process.
Once this is
> > >> >> >> >> accomplished, we plan for incremental development
and
> releases
> > >> that
> > >> >> >> >> follow the Apache guidelines.
> > >> >> >> >>
> > >> >> >> >> == Current Status ==
> > >> >> >> >>
> > >> >> >> >> === Meritocracy ===
> > >> >> >> >> S2Graph operated on meritocratic principles
from the get go.
> > >> >> >> >> Currently, all the discussions pertaining to
S2Graph
> > development
> > >> are
> > >> >> >> >> public on Github. The current incubation
> > >> >> >> >> proposal includes the major code contributors
to S2Graph.
> > Several
> > >> >> >> >> additional people have worked on the S2graph
codebase for
> > industry
> > >> >> use
> > >> >> >> >> cases and would be interested in becoming committers.
We are
> > >> starting
> > >> >> >> >> with a small committer group and we plan to
add additional
> > >> committers
> > >> >> >> >> following an open merit-based decision process
during the
> > >> incubation
> > >> >> >> >> phase.
> > >> >> >> >>
> > >> >> >> >> === Community ===
> > >> >> >> >> We have already begun building a community but
at this time
> the
> > >> >> >> >> community consists only of S2Graph developers
– all Kakao
> > >> employees –
> > >> >> >> >> and prospective users.
> > >> >> >> >> S2Graph seeks to develop developer and user
communities
> during
> > >> >> >> incubation.
> > >> >> >> >>
> > >> >> >> >> === Core Developers ===
> > >> >> >> >> S2Graph is currently being designed and developed
by 2
> > engineers
> > >> from
> > >> >> >> >> Kakao. - Doyung Yoon, Deawon Jeong.
> > >> >> >> >>
> > >> >> >> >> === Alignment ===
> > >> >> >> >> Our proposed S2Graph effort aligns closely with
Apache HBase.
> > The
> > >> >> >> >> HBase project perimeter is denoted by a simple
byte-array
> based
> > >> >> >> >> Create, Read, Update, Delete and Scan APIs with
no current
> > plans
> > >> to
> > >> >> >> >> extend beyond this bounds.
> > >> >> >> >>
> > >> >> >> >> S2Graph complements this with a higher level
API for property
> > >> graph
> > >> >> >> model.
> > >> >> >> >>
> > >> >> >> >> S2Graph was designed to offer scalable distributed
graph
> > database
> > >> >> skin
> > >> >> >> >> over HBase from the beginning in order to provide
property
> > graph
> > >> >> model
> > >> >> >> >> and breadth first search, and continue to focus
on providing
> > graph
> > >> >> >> >> model.
> > >> >> >> >>
> > >> >> >> >> == Known Risks ==
> > >> >> >> >> === Orphaned Products ===
> > >> >> >> >> The core developers of S2Graph team plan to
work full time on
> > this
> > >> >> >> >> project. There is very little risk of S2Graph
getting
> orphaned
> > >> since
> > >> >> >> >> at least one large company (Kakao) is extensively
using it in
> > >> their
> > >> >> >> >> production HBase clusters. For example, currently
there are
> 20+
> > >> use
> > >> >> >> >> cases with more than 1+Trillion edges and 140
million breadth
> > >> first
> > >> >> >> >> search query requests per minute using S2Graph
in production.
> > >> >> >> >> We plan to extend and diversify this community
further
> through
> > >> >> Apache.
> > >> >> >> >>
> > >> >> >> >> === Inexperience with Open Source ===
> > >> >> >> >> The core developers are all active users and
followers of
> open
> > >> >> source.
> > >> >> >> >> They are already committers and contributors
to the S2Graph
> > Github
> > >> >> >> >> project. All have been involved with the source
code that has
> > been
> > >> >> >> >> released under an open source license. Though
the core set of
> > >> >> >> >> Developers do not have Apache Open Source experience,
there
> are
> > >> plans
> > >> >> >> >> to onboard individuals with Apache open source
experience on
> to
> > >> the
> > >> >> >> >> project.
> > >> >> >> >>
> > >> >> >> >> === Homogenous Developers ===
> > >> >> >> >> Most committers in this proposal belong to the
same
> institution
> > >> >> >> >> (Kakao). The engagement of these committers
goes well beyond
> > the
> > >> >> >> >> necessary development to support research, and
all committers
> > >> work on
> > >> >> >> >> S2Graph full time.
> > >> >> >> >> Several people from other institutions are working
on and are
> > >> >> familiar
> > >> >> >> >> with the S2Graph codebase. We will work to attract
them as
> > future
> > >> >> >> >> committers during the incubation phase, following
a
> merit-based
> > >> >> >> >> approach.
> > >> >> >> >>
> > >> >> >> >> === Reliance on Salaried Developers ===
> > >> >> >> >> Kakao invested in S2Graph as the distributed
graph database
> > >> solution
> > >> >> >> >> on top of HBase and some of its key engineers
are working
> full
> > >> time
> > >> >> on
> > >> >> >> >> the project.
> > >> >> >> >> We look forward to other Apache developers and
researchers to
> > >> >> >> >> contribute to the project.
> > >> >> >> >> Also key to addressing the risk associated with
relying on
> > >> Salaried
> > >> >> >> >> developers from a single entity is to increase
the diversity
> of
> > >> the
> > >> >> >> >> contributors and actively lobby for Domain experts
in the
> graph
> > >> >> >> >> database space to contribute. Apache S2Graph
intends to do
> > this.
> > >> >> >> >>
> > >> >> >> >> === Relationships with Other Apache Products
===
> > >> >> >> >> S2Graph has a strong relationship and dependency
with Apache
> > >> Hadoop
> > >> >> >> >> HBase and Spark.
> > >> >> >> >> Being part of Apache’s Incubation community,
could help with
> a
> > >> closer
> > >> >> >> >> collaboration among these two projects and as
well as others.
> > >> >> >> >>
> > >> >> >> >> In terms of graph processing frameworks, S2Graph
and Apache
> > Giraph
> > >> >> >> >> look similar. However, their goals are apparently
different
> to
> > >> each
> > >> >> >> >> other. Giraph aims at analytical batch processing
on
> immutable
> > >> graph
> > >> >> >> >> data sets. In contrast, S2Graph is designed
for OLTP-like
> > >> workloads
> > >> >> on
> > >> >> >> >> graph data sets, and S2Graph provides INSERT/UPDATE
> operations
> > >> too.
> > >> >> >> >>
> > >> >> >> >>
> > >> >> >> >> === An Excessive Fascination with the Apache
Brand ===
> > >> >> >> >> S2Graph is proposing to enter incubation at
Apache in order
> to
> > >> help
> > >> >> >> >> efforts to diversify the committer-base, not
so much to
> > >> capitalize on
> > >> >> >> >> the Apache brand. The S2Graph project is in
production use
> > already
> > >> >> >> >> inside Kakao, but is not expected to be an Kakao
product for
> > >> external
> > >> >> >> >> customers. As such, the S2Graph project is not
seeking to use
> > the
> > >> >> >> >> Apache brand as a marketing tool.
> > >> >> >> >>
> > >> >> >> >> == Documentation ==
> > >> >> >> >> Information about S2Graph can be found at
> > >> >> >> >> https://github.com/kakao/s2graph. The following
links
> provide
> > >> more
> > >> >> >> >> information about S2Graph in open source:
> > >> >> >> >>  * S2Graph web site:
> > >> >> >> https://steamshon.gitbooks.io/s2graph-book/content/
> > >> >> >> >>  * Codebase at Github: https://github.com/kakao/s2graph
> > >> >> >> >>  * Issue Tracking: https://github.com/kakao/s2graph/issues
> > >> >> >> >>  * User community:
> > >> https://groups.google.com/forum/#!forum/s2graph
> > >> >> >> >>
> > >> >> >> >> == Initial Source ==
> > >> >> >> >>
> > >> >> >> >> The S2Graph codebase is currently hosted on
Github:
> > >> >> >> >> https://github.com/kakao/s2graph
> > >> >> >> >>
> > >> >> >> >> === Source and Intellectual Property Submission
Plan ===
> > >> >> >> >>
> > >> >> >> >> Currently, the S2Graph codebase is distributed
under the
> Apache
> > >> 2.0
> > >> >> >> >> License.
> > >> >> >> >>
> > >> >> >> >> == External Dependencies ==
> > >> >> >> >>
> > >> >> >> >> Beyond relying on Apache HBase, Phoenix has
the following
> > external
> > >> >> >> >> dependencies:
> > >> >> >> >>  * Asynchbase (BSD license:
> http://www.antlr3.org/license.html
> > )
> > >> >> >> >>  * Mysql (BSD license:
> > >> >> >> >> https://github.com/julianhyde/sqlline/blob/master/LICENSE)
> > >> >> >> >>  * Play Framework (Apache 2.0 license:
> > >> >> >> >> https://github.com/playframework/playframework)
> > >> >> >> >>  * Scala (https://github.com/scala/scala)
> > >> >> >> >>  * Spark
> > >> >> >> >>  * Kafka
> > >> >> >> >>
> > >> >> >> >> == Required Resources ==
> > >> >> >> >>
> > >> >> >> >> === Mailing list ===
> > >> >> >> >>
> > >> >> >> >> We will migrate our mailing lists to the following:
> > >> >> >> >>  * users@s2graph.incubator.apache.org
> > >> >> >> >>  * dev@s2graph.incubator.apache.org
> > >> >> >> >>  * private@s2graph.incubator.apache.org
> > >> >> >> >>  * commits@s2graph.incubator.apache.org
> > >> >> >> >>
> > >> >> >> >> === Source control ===
> > >> >> >> >>
> > >> >> >> >> The S2Graph team would like to use Git for source
control,
> due
> > to
> > >> our
> > >> >> >> >> current use of Git. We request a writeable Git
repo for
> > S2Graph,
> > >> and
> > >> >> >> >> mirroring to be set up to Github through INFRA.
> > >> >> >> >>
> > >> >> >> >> === Issue Tracking ===
> > >> >> >> >>
> > >> >> >> >> S2Graph currently uses the github issue tracking
system
> > associated
> > >> >> >> >> with its github repo:
> https://github.com/kakao/s2graph/issues.
> > We
> > >> >> will
> > >> >> >> >> migrate to the Apache JIRA:
> > >> >> >> >> http://issues.apache.org/jira/browse/S2Graph
> > >> >> >> >>
> > >> >> >> >> === Other Resources ===
> > >> >> >> >>
> > >> >> >> >> Jenkins/Hudson for builds and test running.
> > >> >> >> >> Wiki for documentation purposes
> > >> >> >> >> Blog to improve project dissemination
> > >> >> >> >>
> > >> >> >> >> == Initial Committers ==
> > >> >> >> >>
> > >> >> >> >>  * Doyung Yoon <shom83 at gmail.com>
> > >> >> >> >>  * Daewon Jeong <blueiur at gmail.com>
> > >> >> >> >>  * Jaesang Kim <honeysleep at gmail.com>
> > >> >> >> >>  * Hwansung Yu <deejayfwan at gmail.com>
> > >> >> >> >>  * Min-Seok Kim <mskim.org at gmail.com>
> > >> >> >> >>  * Chul Kang <miralchul at gmail.com>
> > >> >> >> >>
> > >> >> >> >> == Affiliations ==
> > >> >> >> >>
> > >> >> >> >> The initial committers are from one organizations:
Kakao.
> > >> >> >> >>  * Doyung Yoon, Kakao
> > >> >> >> >>  * Daewon Jeong, Kakao
> > >> >> >> >>  * Jaesang Kim, Kakao
> > >> >> >> >>  * Hwansung Yu, Kakao
> > >> >> >> >>  * Min-Seok Kim, Kakao
> > >> >> >> >>  * Chul Kang, Kakao
> > >> >> >> >>
> > >> >> >> >> == Sponsors ==
> > >> >> >> >>
> > >> >> >> >> === Champion ===
> > >> >> >> >> Hyunsik Choi
> > >> >> >> >>
> > >> >> >> >> === Nominated Mentors ===
> > >> >> >> >>
> > >> >> >> >> === Sponsoring Entity ===
> > >> >> >> >>
> > >> >> >> >>  * The Apache Incubator
> > >> >> >> >>
> > >> >> >> >> On Fri, Nov 6, 2015 at 4:05 PM, Hyunsik Choi
<
> > hyunsik@apache.org>
> > >> >> >> wrote:
> > >> >> >> >> > Hi Seetharam,
> > >> >> >> >> >
> > >> >> >> >> > Thank you for a good question. That seem
to be a frequent
> > >> question
> > >> >> to
> > >> >> >> >> > this project.
> > >> >> >> >> >
> > >> >> >> >> > Here is the answer to your question.
> > >> >> >> >> >
> > >> >> >> >>
> > >> >> >>
> > >> >>
> > >>
> >
> https://steamshon.gitbooks.io/s2graph-book/content/what_is_different_to_titan.html
> > >> >> >> >> >
> > >> >> >> >> > I hope that this link is helpful to your
understanding.
> > >> >> >> >> >
> > >> >> >> >> > Best regards,
> > >> >> >> >> > Hyunsik
> > >> >> >> >> >
> > >> >> >> >> >
> > >> >> >> >> >
> > >> >> >> >> > On Fri, Nov 6, 2015 at 3:07 PM, Seetharam
Venkatesh
> > >> >> >> >> > <venkatesh@innerzeal.com> wrote:
> > >> >> >> >> >> Hi Hyunsik,
> > >> >> >> >> >>
> > >> >> >> >> >> The proposal looks interesting and
want to know how is
> this
> > >> >> different
> > >> >> >> >> from
> > >> >> >> >> >> existing solutions in the same space
such as Titan, etc.
> > >> >> >> >> >>
> > >> >> >> >> >> Thanks!
> > >> >> >> >> >> Venkatesh
> > >> >> >> >> >>
> > >> >> >> >> >>
> > >> >> >> >> >> On Fri, Nov 6, 2015 at 1:36 PM Hyunsik
Choi <
> > >> hyunsik@apache.org>
> > >> >> >> wrote:
> > >> >> >> >> >>
> > >> >> >> >> >>> Hi folks,
> > >> >> >> >> >>>
> > >> >> >> >> >>> We would like to start a discussion
on S2Graph as an
> > >> incubation
> > >> >> >> >> project.
> > >> >> >> >> >>>
> > >> >> >> >> >>> S2Graph is a distributed and scalable
OLTP graph database
> > >> built
> > >> >> on
> > >> >> >> >> >>> HBase. It provides interactive
queries for
> > >> >> vertex/edge/sub-graphs on
> > >> >> >> >> >>> extremely large graph data sets
as well as insertion and
> > >> update
> > >> >> >> >> >>> operations.
> > >> >> >> >> >>>
> > >> >> >> >> >>> S2Graph was already introduced
in Apache BigData and
> > HBaseCon
> > >> >> this
> > >> >> >> >> year.
> > >> >> >> >> >>>
> > >> >> >> >> >>> The proposal is available at :
> > >> >> >> >> >>> https://wiki.apache.org/incubator/S2GraphProposal
> > >> >> >> >> >>>
> > >> >> >> >> >>> We are looking forward to any feedback.
In addition, we
> are
> > >> >> looking
> > >> >> >> >> >>> for volunteers as mentors.
> > >> >> >> >> >>>
> > >> >> >> >> >>> Best regards,
> > >> >> >> >> >>> Hyunsik
> > >> >> >> >> >>>
> > >> >> >> >> >>>
> > >> >> >>
> > ---------------------------------------------------------------------
> > >> >> >> >> >>> To unsubscribe, e-mail:
> > >> general-unsubscribe@incubator.apache.org
> > >> >> >> >> >>> For additional commands, e-mail:
> > >> >> general-help@incubator.apache.org
> > >> >> >> >> >>>
> > >> >> >> >> >>>
> > >> >> >> >>
> > >> >> >> >>
> > >> ---------------------------------------------------------------------
> > >> >> >> >> To unsubscribe, e-mail:
> > general-unsubscribe@incubator.apache.org
> > >> >> >> >> For additional commands, e-mail:
> > >> general-help@incubator.apache.org
> > >> >> >> >>
> > >> >> >> >>
> > >> >> >> >
> > >> >> >> >
> > >> >> >> > --
> > >> >> >> > Sergio Fernández
> > >> >> >> > Partner Technology Manager
> > >> >> >> > Redlink GmbH
> > >> >> >> > m: +43 6602747925
> > >> >> >> > e: sergio.fernandez@redlink.co
> > >> >> >> > w: http://redlink.co
> > >> >> >>
> > >> >> >>
> > ---------------------------------------------------------------------
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> > >> >> >> For additional commands, e-mail:
> > general-help@incubator.apache.org
> > >> >> >>
> > >> >> >>
> > >> >>
> > >> >>
> ---------------------------------------------------------------------
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> > >> >>
> > >> >>
> > >>
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-- 
Byung-Gon Chun

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