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From Andreas Neumann <a...@apache.org>
Subject Re: [PROPOSAL] Weave for Apache Incubator
Date Wed, 30 Oct 2013 05:41:32 GMT
Thanks for pointing out these similarities; we were not aware of Commons
Weaver. Given that Weaver is a sub-project of Commons, would the similarity
be tolerable? Also, since Weave and Wave are pronounced quite differently,
I am hoping that they are perceived as different enough.

The name Weave is motivated from the name of YARN - it takes the complexity
out of yarn by "weaving" it into a simple pattern. Warp and Weft don't
really convey this meaning.

If the concern about the name similarity is really strong, we will try to
find another name, and we are open to suggestions. But please do also
consider the motivation for this naming.

Thanks



On Tue, Oct 29, 2013 at 7:54 PM, sebb <sebbaz@gmail.com> wrote:

> In which case, maybe consider the related words:
>
> Apache Warp
> Apache Weft
>
> Just a thought.
>
> On 29 October 2013 22:14, Upayavira <uv@odoko.co.uk> wrote:
> > And Apache Wave too (which is what I first saw before I read the title
> > more carefully).
> >
> > Upayavira
> >
> > On Tue, Oct 29, 2013, at 09:12 PM, Matt Benson wrote:
> >> Hi,
> >>   I am concerned about potential confusion with Apache Commons Weaver
> >>   [1].
> >>
> >> Matt
> >>
> >> [1] https://commons.apache.org/proper/commons-weaver/
> >>
> >>
> >> On Tue, Oct 29, 2013 at 2:53 PM, Andreas Neumann <anew@apache.org>
> wrote:
> >>
> >> > I would like to propose Weave, an abstraction over Apache Hadoop®
> YARN to
> >> > reduce the complexity of developing distributed applications, as an
> >> > Apache Incubator
> >> > podling.
> >> >
> >> > The proposal is included in plain text. I would also like to put this
> on
> >> > the wiki, but I appear to lack privileges to create pages. What do I
> need
> >> > to do to get permission?
> >> >
> >> > -Andreas.
> >> >
> >> > Abstract
> >> > ========
> >> >
> >> > Weave is an abstraction over Apache Hadoop® YARN that reduces the
> >> > complexity of developing distributed applications, allowing
> developers to
> >> > focus more on their business logic.
> >> >
> >> > Proposal
> >> > ========
> >> >
> >> > Weave is a set of libraries that reduces the complexity of developing
> >> > distributed applications. It exposes the distributed capabilities of
> Apache
> >> > Hadoop® YARN via a simple and intuitive programming model similar to
> Java
> >> > threads. Weave also has built-in capabilities required by many
> distributed
> >> > applications, such as real-time application logs and metrics
> collection,
> >> > application lifecycle management, and network service discovery.
> >> >
> >> > Background
> >> > ==========
> >> >
> >> > Hadoop YARN is a generic cluster resource manager that supports any
> type of
> >> > distributed application. However, YARN’s interfaces are too low level
> for
> >> > rapid application development. It requires a great deal of
> boilerplate code
> >> > even for a simple application, creating a high ramp up cost that can
> turn
> >> > developers away.
> >> >
> >> > Weave is designed to improve this situation with a programming model
> that
> >> > makes running distributed applications as easy as running Java
> threads.
> >> > With the abstraction provided by Weave, applications can be executed
> in
> >> > process threads during development and unit testing and then be
> deployed to
> >> > a YARN cluster without any modifications.
> >> >
> >> > Weave also has built-in support for real-time application logs and
> metrics
> >> > collection, delegation token renewal, application lifecycle
> management, and
> >> > network service discovery. This greatly reduces the pain that
> developers
> >> > face when developing, debugging, deploying and monitoring distributed
> >> > applications.
> >> >
> >> > Weave is not a replacement for YARN, it’s a framework that operates
> on top
> >> > of YARN.
> >> >
> >> > Rationale
> >> > =========
> >> >
> >> > Developers who write YARN applications typically find themselves
> >> > implementing the same (or similar) boilerplate code over and over
> again for
> >> > every application. It makes sense to distill this common code into a
> >> > reusable set of libraries that is perpetually maintained and improved
> by a
> >> > diverse community of developers.
> >> >
> >> > Weave’s simple thread-like programming model will enable many Java
> >> > programmers to develop distributed applications. We believe that this
> >> > simplicity will attract developers who would otherwise be discouraged
> by
> >> > complexity, and many new use cases will emerge for the usage of YARN.
> >> >
> >> > Incubating Weave as an Apache project makes sense because Weave is a
> >> > framework built on top of YARN, and Weave uses Apache Zookeeper, HDFS,
> >> > Kafka, and other Apache software (see the External Dependencies
> section).
> >> >
> >> > Current Status
> >> > ==============
> >> >
> >> > Weave was initially developed at Continuuity. The Weave codebase is
> >> > currently hosted in a public repository at github.com, which will
> seed the
> >> > Apache git repository.
> >> >
> >> > Meritocracy
> >> > -----------
> >> > Our intent with this incubator proposal is to start building a diverse
> >> > developer community around Weave following the Apache meritocracy
> model.
> >> > Since Weave was initially developed in early 2013, we have had fast
> >> > adoption and contributions within Continuuity. We are looking forward
> to
> >> > new contributors. We wish to build a community based on Apache's
> >> > meritocracy principles, working with those who contribute
> significantly to
> >> > the project and welcoming them to be committers both during the
> incubation
> >> > process and beyond.
> >> >
> >> > Community
> >> > ---------
> >> > Weave is currently being used internally at Continuuity and is at the
> core
> >> > of our products. We hope to extend our contributor base significantly
> and
> >> > we will invite all who are interested in simplifying the development
> of
> >> > distributed applications to participate.
> >> >
> >> > Core Developers
> >> > ---------------
> >> > Weave is currently being developed by five engineers at Continuuity:
> >> >  Terence Yim, Andreas Neumann, Gary Helmling, Poorna Chandra and
> Albert
> >> > Shau.
> >> > Terence Yim is an Apache committer for Helix, Andreas is an Apache
> >> > committer and PMC member for Oozie, and Gary Helmling is an Apache
> >> > committer and PMC member for HBase. Poorna Chandra and Albert Shau
> have
> >> > made many contributions to Weave.
> >> >
> >> > Alignment
> >> > ---------
> >> > The ASF is the natural choice to host the Weave project as its goal of
> >> > encouraging community-driven open source projects fits with our
> vision for
> >> > Weave.
> >> >
> >> > Additionally, many other projects with which we are familiar and
> expect
> >> > Weave to integrate with, such as ZooKeeper, YARN, HDFS, log4j, and
> others
> >> > mentioned in the External Dependencies section are Apache projects,
> and
> >> > Weave will benefit by close proximity to them.
> >> >
> >> > Known Risks
> >> > ===========
> >> >
> >> > Orphaned Products
> >> > -----------------
> >> > There is very little risk of Weave being orphaned, as it is a key
> part of
> >> > Continuuity’s products. The core Weave developers plan to continue to
> work
> >> > on Weave, and Continuuity has funding in place to support their
> efforts
> >> > going forward.
> >> > Many other Big Data companies can benefit from Weave, and we have
> already
> >> > received interest from various entities that would like to use and
> >> > contribute to Weave.
> >> >
> >> > Inexperience with Open Source
> >> > -----------------------------
> >> > Several of the core developers have experience with open source
> >> > development. Terence Yim, Andreas Neumann and Gary Helmling are
> currently
> >> > Apache committers for Helix, Oozie and HBase respectively
> >> > Homogeneous Developers
> >> >
> >> > The current core developers are all Continuuity employees. However, we
> >> > intend to establish a developer community that includes independent
> and
> >> > corporate contributors. We are encouraging new contributors via our
> mailing
> >> > lists, public presentations, and personal contacts, and we will
> continue to
> >> > do so. Various entities have already expressed interest in becoming
> >> > involved with Weave.
> >> >
> >> > Reliance on Salaried Developers
> >> > -------------------------------
> >> > Currently, these developers are paid to work on Weave. Once the
> project has
> >> > built a community, we expect to attract committers, developers and
> >> > community other the current core developers. However, because
> Continuuity
> >> > products use Weave internally, the reliance on salaried developers is
> >> > unlikely to change, at least in the near term.
> >> >
> >> > Relationships with Other Apache Products
> >> > ----------------------------------------
> >> > Weave is deeply integrated with Apache projects. Weave uses Apache
> YARN as
> >> > its underlying resource management and task scheduling system and
> Apache
> >> > Zookeeper for coordination. In addition, Weave uses Apache HDFS and
> Apache
> >> > Kafka. A number of other Apache projects are Weave dependencies and
> are
> >> > listed in the External Dependencies section.
> >> >
> >> > An Excessive Fascination with the Apache Brand
> >> > ----------------------------------------------
> >> > While we respect the reputation of the Apache brand and have no doubt
> that
> >> > it will attract contributors and users, our interest is primarily to
> give
> >> > Weave a solid home as an open source project following an established
> >> > development model. We have also given additional reasons in the
> Rationale
> >> > and Alignment sections.
> >> >
> >> > Documentation
> >> > =============
> >> >
> >> > https://github.com/continuuity/weave
> >> >
> >> > Initial Source
> >> > ==============
> >> >
> >> > The Weave codebase is currently hosted at
> >> > https://github.com/continuuity/weave.
> >> >
> >> > External Dependencies
> >> > =====================
> >> >
> >> > The dependencies all have Apache-compatible licenses:
> >> > • avro (Apache 2.0)
> >> > • hadoop (Apache 2.0)
> >> > • gson (Apache 2.0)
> >> > • guava-libraries (Apache 2.0)
> >> > • hbase (Apache 2.0)
> >> > • hdfs (Apache 2.0)
> >> > • kafka (Apache 2.0)
> >> > • netty (Apache 2.0)
> >> > • snappy-java (Apache 2.0)
> >> > • yarn (Apache 2.0)
> >> > • zookeeper (Apache 2.0)
> >> > • asm (BSD)
> >> > • junit (EPL v1.0)
> >> > • logback (EPL v1.0 )
> >> > • slf4j (MIT)
> >> >
> >> > Cryptography
> >> > ============
> >> >
> >> > Weave will depend on secure Hadoop, which can optionally use Kerberos.
> >> >
> >> > Required Resources
> >> > ==================
> >> >
> >> > Mailing Lists
> >> > -------------
> >> > - weave-private for private PMC discussions (with moderated
> subscriptions)
> >> > - weave-dev for technical discussions among contributors
> >> > - weave-commits for notification about commits
> >> >
> >> > Subversion Directory
> >> > --------------------
> >> > Git is the preferred source control system: git://
> git.apache.org/weave
> >> >
> >> > Issue Tracking
> >> > --------------
> >> > JIRA Weave (WEAVE)
> >> >
> >> > Other Resources
> >> > ---------------
> >> > The existing code already has unit tests, so we would like a Hudson
> >> > instance to run them whenever a new patch is submitted. This can be
> added
> >> > after project creation.
> >> >
> >> > Initial Committers
> >> > ==================
> >> >
> >> > • Terence Yim
> >> > • Andreas Neumann
> >> > • Gary Helmling
> >> > • Poorna Chandra
> >> > • Albert Shau
> >> >
> >> > Affiliations
> >> > ============
> >> >
> >> > • Terence Yim (Continuuity)
> >> > • Andreas Neumann (Continuuity)
> >> > • Gary Helmling (Continuuity)
> >> > • Poorna Chandra (Continuuity)
> >> > • Albert Shau (Continuuity)
> >> >
> >> > Sponsors
> >> > ========
> >> >
> >> > Champion
> >> > --------
> >> > Vinod K <vinodkv at apache dot org> (Apache Member)
> >> >
> >> > Nominated Mentors
> >> > -----------------
> >> > • Arun C Murthy <acmurthy at apache dot org>
> >> > • Tom White <tomwhite at apache dot org>
> >> > • Patrick Hunt <phunt at apache dot org>
> >> >
> >> > Sponsoring Entity
> >> > -----------------
> >> > We are requesting that the Incubator sponsor this project.
> >> >
> >
> > ---------------------------------------------------------------------
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> >
>
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