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From Tommaso Teofili <tommaso.teof...@gmail.com>
Subject Re: [VOTE] Mesos to enter the incubator
Date Sun, 19 Dec 2010 13:31:26 GMT
+1 (non binding).
Cheers,
Tommaso

2010/12/18 Chris A Mattmann <chris.mattmann@gmail.com>

> +1...(binding).
>
> Cheers,
> Chris
>
> On Dec 18, 2010, at 1:32 PM, Matei Zaharia wrote:
>
> > We've finalized our proposal for Mesos
> > (http://wiki.apache.org/incubator/MesosProposal) and we'd now like to
> > put it up for vote.
> >
> > I'll tally the results after five days, on December 23rd.
> >
> > Thanks,
> >
> > Matei
> >
> >
> >
> >
> > ---------------------------------------------------------------------
> > MESOS PROPOSAL
> > ---------------------------------------------------------------------
> >
> >
> > = Abstract =
> >
> > Mesos is a cluster manager that provides resource sharing and
> > isolation across cluster applications.
> >
> >
> >
> > = Proposal =
> >
> > Mesos is system for sharing resources between cluster applications such
> > as Hadoop MapReduce, HBase, MPI, and web applications.
> > It is motivated by three use cases. First, organizations that use
> > several of these applications can use Mesos to share nodes between them,
> > increasing utilization and simplifying management. Second, inspired by
> > MapReduce, a wide array of new cluster programming frameworks are being
> > proposed, such as Apache Hama, Microsoft Dryad, and Google's Pregel and
> > Caffeine. Mesos provides a common interface for such frameworks to share
> > resources, allowing organizations to use multiple frameworks in the same
> > cluster. Third, Mesos allows users of a framework such as Hadoop to have
> > multiple instances of the framework on the same cluster, facilitating
> > workload isolation and incremental deployment of upgrades.
> >
> >
> >
> > = Background =
> >
> > Mesos was inspired by operational issues experienced in large Apache
> Hadoop
> > deployments as well as a desire to provide a management system for a
> > wider range of cluster applications. The Apache Hadoop community has long
> > realized that the current model of having one instance of MapReduce
> > control a whole cluster leads to problems with isolation (one job may
> > cause the master to crash, killing all the other jobs), scalability,
> > and software upgrades (an upgrade must be deployed on the whole cluster).
> > Statically partitioning resources into multiple fixed-size MapReduce
> > clusters
> > is unattractive because it lowers both utilization and data locality.
> > The community has discussed a two-level scheduling model where a simple,
> > robust low-level layer enables multiple applications to launch tasks
> > (https://issues.apache.org/jira/browse/MAPREDUCE-279). Mesos is such a
> > layer,
> > with the additional goal of supporting non-Hadoop applications as well.
> >
> > Mesos started as a research project at UC Berkeley, but is now being
> > tested at several companies (including Twitter and Facebook), and has
> > attracted
> > interest from other industry users and researchers as well. We are
> > therefore proposing to place Mesos in the Apache incubator and build an
> > open source community around it.
> >
> >
> >
> > = Rationale =
> >
> > Although a variety of cluster schedulers (e.g. Torque, Sun Grid Engine)
> > already exist in the scientific computing community, they are not well
> > suited for today's data center environment.
> > These schedulers generally give jobs coarse-grained static allocations of
> > the cluster (e.g. X nodes for the full duration of the job).
> > This is problematic because many cluster applications are elastic
> > (can scale up and down), so utilization is not optimal under static
> > partitioning, and because data-intensive applications such as MapReduce
> > need to run a few tasks on every node of the cluster to read data
> locally.
> > To address these challenges, Mesos is designed around two principles:
> >
> >  * Fine-grained sharing: Mesos allocates resources at the level of
> "tasks"
> >    within a job, allowing applications to scale up and down over time and
> >    to take turns accessing data on cluster nodes.
> >  * Application-controlled scheduling: Applications control which nodes
> >    their tasks run on, allowing them to achieve placement goals such as
> >    data locality.
> >
> > In addition to these principles, Mesos is designed to be simple, scalable
> > and robust, becuase a cluster manager must be highly available to support
> > applications and should not become a bottleneck. Application-controlled
> > scheduling already simplifies our design by pushing much of the complex
> > logic of tracking job state to applications. In addition, Mesos employs
> an
> > optimized C++ message-passing library to achieve scalability and supports
> > master failover using Apache ZooKeeper.
> >
> > Mesos already supports running Hadoop and MPI. We plan to add support
> > for other systems as requested (and contributed) by the community.
> >
> >
> >
> > = Current Status =
> >
> > == Meritocracy ==
> >
> > Our intent with this incubator proposal is to start building a diverse
> > developer community around Mesos following the Apache meritocracy model.
> > We have wanted to make the project open source and encourage contributors
> > from multiple organizations from the start. We plan to provide plenty
> > of support to new developers and to quickly recruit those who make solid
> > contributions to committer status.
> >
> > == Community ==
> >
> > Mesos is currently being used by developers at Twitter and researchers in
> > computer science and civil engineering at Berkeley. We hope to extend
> > the user
> > and developer base further in the future. The current developers and
> users
> > are all interested in building a solid open source community around
> Mesos.
> >
> > To work towards an open source community, we have been using the GitHub
> > issue
> > tracker and mailing lists at Berkeley for development discussions within
> our
> > group for several months now.
> >
> > == Core Developers ==
> >
> > Mesos was started by three graduate students at UC Berkeley (Benjamin
> > Hindman,
> > Andy Konwinski and Matei Zaharia), who were soon joined by a postdoc from
> > the Swedish Institute of Computer Science (Ali Ghodsi). Although started
> as
> > a research project, Mesos was always intended to solve operational issues
> > with large clusters and to become an open-source project, building on our
> > successful experience doing research that has been incorporated into
> > Apache Hadoop
> > (several scheduling algorithms).
> >
> > == Alignment ==
> >
> > The ASF is a natural host for Mesos given that it is already the home of
> > Hadoop, HBase, Cassandra, and other emerging cloud software projects.
> > Mesos was designed to support Hadoop from the beginning in order to solve
> > operational challenges in Hadoop clusters, and it aims to support a wide
> > range
> > of applications beyond Hadoop as well. Mesos complements the existing
> Apache
> > cloud computing projects by providing a unified way to manage these
> systems
> > and to share resources and data between them.
> >
> >
> >
> > = Known Risks =
> >
> > == Orphaned Products ==
> >
> > With the current core developers of Mesos being graduate students, there
> > is a risk that these developers will eventually move on to other
> projects.
> > However, because of the broad scope of Mesos, we all plan to continue
> > working
> > on projects related to it in the next several years. We are also actively
> > working with developers at other organizations, such as Twitter, who are
> > good candidates to become contributors.
> >
> > == Inexperience with Open Source ==
> >
> > All of the core developers are active users and followers of open source.
> > Matei Zaharia is a Hadoop committer and has experience with the Apache
> > infrastructure and development process. Andy Konwinski has contributed
> > patches to Hadoop through the Apache infrastructure as well. Ali Ghodsi
> > has released open source software as part of his PhD work that was
> adopted
> > by a Swedish company.
> >
> > == Homogeneous Developers ==
> >
> > The current core developers are all researchers (graduate students and a
> > young professor). However, we hope to establish a developer community
> > that includes contributors from several corporations, and we are already
> > working towards this with Twitter and Facebook.
> >
> > == Reliance on Salaried Developers ==
> >
> > Given that the project started in an academic research environment, the
> > core developers are all interested in it primarily for its own sake
> rather
> > than for the sake of employment. We all intend to continue working on
> Mesos
> > as volunteers.
> >
> > == Relationships with Other Apache Products ==
> >
> > Mesos needs to work well with Hadoop, HBase, and other cloud software
> > projects. Being hosted on the same infrastructure will facilitate this
> > and ultimately help out both Mesos and the projects that can now be
> > managed using it. There is, however, a risk that new projects will be
> built
> > to run solely on Mesos, introducing a dependency.
> >
> > == An Excessive Fascination with the Apache Brand ==
> >
> > While we respect the reputation of the Apache brand and have no doubts
> > that it will attract contributors and users, our interest is primarily
> > to give Mesos a solid home as an open source project following an
> > established development model. Locating the project in Apache will also
> > facilitate collaboration with Hadoop, HBase, and other Apache cluster
> > computing projects, as discussed in the Alignment section.
> >
> >
> >
> > = Documentation =
> >
> > Information about Mesos can be found at http://mesos.berkeley.edu.
> > The following sources may be useful to start with:
> >
> >  * Documentation for GitHub release: http://github.com/mesos/mesos/wiki
> >  * Presentation at Hadoop User Group:
> > http://www.cs.berkeley.edu/~matei/talks/2010/hug_mesos.pdf
> >  * Tech report on system design and current features:
> > http://mesos.berkeley.edu/mesos_tech_report.pdf (paper to appear at NSDI
> > 2011 conference)
> >
> >
> >
> > = Initial Source =
> >
> > Mesos has been under development since spring 2009 by a team of graduate
> > students and researchers. It is currently hosted on GitHub under a BSD
> > license at http://github.com/mesos/mesos.
> >
> >
> >
> > = External Dependencies =
> >
> > The dependencies all have Apache compatible licenses, including BSD,
> > MIT, Boost, and Apache 2.0.
> >
> >
> >
> > = Cryptography =
> >
> > Not applicable.
> >
> >
> >
> > = Required Resources =
> >
> > == Mailing Lists ==
> >
> >  * mesos-private for private PMC discussions (with moderated
> subscriptions)
> >  * mesos-dev
> >  * mesos-commits
> >  * mesos-user
> >
> >
> >
> > == Subversion Directory ==
> >
> > https://svn.apache.org/repos/asf/incubator/mesos
> >
> >
> >
> > == Issue Tracking ==
> >
> > JIRA Mesos (MESOS)
> >
> >
> >
> > == 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 =
> >
> >  * Ali Ghodsi (ali at sics dot se)
> >  * Benjamin Hindman (benh at eecs dot berkeley dot edu)
> >  * Andy Konwinski (andyk at eecs dot berkeley dot edu)
> >  * Matei Zaharia (matei at apache dot org)
> >
> > A CLA is already on file for Matei Zaharia.
> >
> >
> > = Affiliations =
> >
> >  * Ali Ghodsi (UC Berkeley / Swedish Institute of Computer Science)
> >  * Benjamin Hindman (UC Berkeley)
> >  * Andy Konwinski (UC Berkeley)
> >  * Matei Zaharia (UC Berkeley)
> >
> >
> >
> > = Sponsors =
> >
> > == Champion ==
> >
> > Tom White
> >
> > == Nominated Mentors ==
> >
> >  * Dhruba Borthakur
> >  * Brian McCallister
> >  * Tom White
> >
> > == Sponsoring Entity ==
> >
> > Incubator PMC
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: general-unsubscribe@incubator.apache.org
> > For additional commands, e-mail: general-help@incubator.apache.org
> >
>
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Chris Mattmann, Ph.D.
> Senior Computer Scientist
> NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
> Office: 171-266B, Mailstop: 171-246
> Email: chris.a.mattmann@nasa.gov
> WWW:   http://sunset.usc.edu/~mattmann/
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Adjunct Assistant Professor, Computer Science Department
> University of Southern California, Los Angeles, CA 90089 USA
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
> ---------------------------------------------------------------------
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>
>

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