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From: Andrei Savu <asavu@apache.org>
Date: Tue, 6 Aug 2013 17:57:36 +0300
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 <CAHZL8y-ppLKSsmp9tRD+TqMZLN=hY6vN0P=BBPP5KMzyShK4Gw@mail.gmail.com>
Subject: Re: [VOTE]: Accept Sentry in Apache Incubator
To: general@incubator.apache.org
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+1 (non-binding)

-- Andrei Savu

On Mon, Aug 5, 2013 at 4:23 PM, Shreepadma Venugopalan <
shreepadma@cloudera.com> wrote:

> Following the discussions last week, I'm calling a vote to accept Sentry =
as
> a new project in the Apache Incubator.
>
> The proposal draft is available at:
> https://wiki.apache.org/incubator/SentryProposal and is also pasted to th=
e
> bottom of this email. It is identical to what was proposed except for a)
> addition of two new mentors, and b) removal of the user list for now, per
> Marvin's suggestion. The proposal thread is available at:
> http://goo.gl/bvvJPh
>
> [ ] +1 Accept Sentry in the Incubator
> [ ] +/-0 Don't care
> [ ] -1 Don't accept Sentry in the Incubator because...
>
> Thanks.
> Shreepadma
>
>
> =3D Sentry - A fine-grained Authorization System for the Hadoop ecosystem=
 =3D
>
> =3D=3D Abstract =3D=3D
>
> Sentry is a highly modular system for providing fine grained role based
> authorization to both data and metadata stored on an Apache Hadoop cluste=
r.
> Sentry can be used to enforce various access policy rules when accessing
> data stored on Hadoop Distributed File System through various Hadoop
> ecosystem components such as Apache Hive, Apache Pig or others.
>
> =3D=3D Proposal =3D=3D
>
> Traditionally, user access control in Apache Hadoop has been implemented
> using file based permissions on HDFS. Following the UNIX permissions mode=
l,
> HDFS offers all or nothing semantics allowing administrator to configure
> system to allow certain users or user groups read, write or perform both
> operations on files. This system does not enable more fine grained
> permissions that allow access policies for logical parts within one file.
> Furthermore, this model can't be used to restrict access to the rich set =
of
> objects in the metadata catalog that are stored outside HDFS.
>
> Sentry will provide true role-based fine-grained user access control for
> Apache Hadoop and its ecosystem components such as Hive, Pig or HBase. Th=
is
> includes providing fine- grained role based access to both data as well a=
s
> the metadata, which provides a rich object based abstraction such as
> databases, tables or columns.
>
> =3D=3D Background =3D=3D
>
> Sentry was initially developed by Cloudera to allow users fine grained
> access to data as well as the metadata in Apache Hadoop.
>
> Sentry has been maintained as an open source project on Cloudera=92s gith=
ub.
> Sentry was previously called =93Access=94. All code in Sentry is open sou=
rce
> and has been made publicly available under the Apache 2 license. During
> this time, Sentry has been formally released two times as versions 1.0.0
> and 1.1.0.
>
> =3D=3D Rationale =3D=3D
>
> Currently, users don't have a way to achieve fine grained enforceable use=
r
> access control to data stored in HDFS and their associated metadata. Whil=
e
> users can use file based permissions to control access to specific
> directories and files, it is insufficient because access can't be
> restricted to file parts i.e., to specific lines or logical columns. In t=
he
> absence of such support, users have to resort to duplicating data.
> Furthermore, file based permissions are insufficient to provide any form =
of
> access control to the metadata that provides an object abstraction such a=
s
> databases, tables, columns or partitions over the data stored in HDFS.
>
> Current Sentry developers subscribe to the mission of ASF and are familia=
r
> with the open source development process. Several members are already
> committers and PMC members of various other Apache projects.
>
> =3D=3D Initial Goals =3D=3D
>
> Sentry is currently in its first major release with a considerable number
> of enhancement requests, tasks, and issues recorded towards its future
> development. The initial goal of this project will be to continue to buil=
d
> community in the spirit of the "Apache Way", and to address the highly
> requested features and bug-fixes towards the next dot release.
>
> =3D=3D Current Status =3D=3D
> =3D=3D=3D Meritocracy =3D=3D=3D
>
> Intent of the proposal is to build a diverse community of developers arou=
nd
> Sentry. Sentry started as a open source project on Github, driven in the
> spirit of open source and we would like to continue in this spirit by, fo=
r
> example, encouraging contributors from a variety of organizations.
>
> =3D=3D=3D Community =3D=3D=3D
>
> Sentry stakeholders desire to expand the user and developer base of Sentr=
y
> further in the future. The current sets of developers in Sentry are
> committed to building a strong user base and open source community around
> the project. Development discussions within the current team have been on=
 a
> public mailing [[
> https://groups.google.com/a/cloudera.org/forum/#!forum/access-dev |
> list]].
>
> =3D=3D=3D Core Developers =3D=3D=3D
>
> The core developers for the Sentry project are Brock Noland, Shreepadma
> Venugopalan, Prasad Mujumdar and  Jarek Jarcec Cecho. Other contributors
> include Arvind Prabhakar and Xuefu Zhang. All engineers have deep experti=
se
> in Hadoop and various other ecosystem components.
>
> =3D=3D=3D Alignment =3D=3D=3D
>
> Sentry complements the access control feature of some projects in the
> Apache Hadoop ecosystem, such as HDFS file permissions, by providing fine=
r
> grained access control to data and metadata. It supersedes the access
> control capabilities of some other projects such as Apache Hive by
> providing stronger guarantees against malicious access.  Currently, Sentr=
y
> integrates with Apache Hive, however we are planning to provide support f=
or
> other components such as Apache Pig.
>
> While projects such as Apache Knox aim to provide perimeter security, the
> goal of Sentry is to implement a fine-grained role-based access control
> policy. Thus Sentry complements Apache Knox.
>
> =3D=3D Known Risks =3D=3D
>
> =3D=3D=3D Orphaned Products =3D=3D=3D
>
> Sentry is already deployed in production at a few well established
> companies and they are actively sharing feature requests. The risks of it
> being orphaned is negligible.
>
> =3D=3D=3D Inexperience with Open Source =3D=3D=3D
>
> All committers of  the Sentry project are intimately familiar with the
> Apache model for open-source development and are experienced with working
> with various Apache open -source communities.
>
> =3D=3D=3D Homogeneous Developers =3D=3D=3D
>
> The initial set of committers includes developers from several
> organizations - Cloudera, Oracle, Lab41, Nvidia and Wibidata.  We expect
> that once approved for incubation, the project will further attract new
> contributors.
>
> =3D=3D=3D Reliance on Salaried Developers =3D=3D=3D
>
> It is expected that Sentry will be developed on both salaried and volunte=
er
> time, although all of the initial developers will work on it mainly on
> salaried time.
>
> =3D=3D=3D Relationships with Other Apache Products =3D=3D=3D
>
> Sentry depends on other Apache Projects: Apache Hadoop, Apache Log4J,
> Apache Hive, Apache Shiro, multiple Apache Commons components. Build is
> orchestrated by Apache Maven. Sentry complements Apache Knox.
>
> =3D=3D=3D An Excessive Fascination with the Apache Brand =3D=3D=3D
>
> We would like Sentry to become an Apache project to further foster a
> healthy community of users and developers around it. Since Sentry solves =
an
> important problem faced by Apache Hadoop users and interacts with other
> components of the Apache Hadoop ecosystem, we believe that Apache is the
> right home for Sentry.
>
> =3D=3D Documentation =3D=3D
>
>   * Cloudera provides documentation specific to its distribution of Sentr=
y
> at:
>
> http://www.cloudera.com/content/cloudera-content/cloudera-docs/Sentry/Sen=
try.pdf
>   * Sentry jira at Cloudera: https://issues.cloudera.org/browse/access
>
> =3D=3D Initial Source =3D=3D
>
> https://github.com/cloudera/access
>
> =3D=3D Source and Intellectual Property Submission Plan =3D=3D
>
> All of Sentry=92s code is under Apache 2 license already.
>
> =3D=3D External Dependencies =3D=3D
>
> All dependencies have licenses compatible with ASL. Dependencies that are
> not directly using ASL are,
>
>   * Junit - Eclipse Public License
>
> =3D=3D Cryptography =3D=3D
>
> Sentry currently doesn=92t directly use any cryptographic libraries. Howe=
ver,
> Sentry uses Apache Shiro, which provides support for cryptography feature=
s
> such as hash, cipher etc.
>
> =3D=3D Required Resources =3D=3D
>
> =3D=3D=3D Mailing Lists =3D=3D=3D
>
>   * private@sentry.incubator.apache.org for private PMC discussions (with
> moderated subscriptions)
>   * security@sentry.incubator.apache.org for private security related
> discussions
>   * dev@sentry.incubator.apache.org
>   * commits@sentry.incubator.apache.org
>
> =3D=3D=3D Source code repository =3D=3D=3D
>
> Git repository running at http://git-wip-us.apache.org/.
>
> =3D=3D=3D Issue Tracking =3D=3D=3D
>
> JIRA Sentry (SENTRY)
>
> =3D=3D=3D Other Resources =3D=3D=3D
>
> The existing code already has unit and integration tests so we would like=
 a
> Jenkins CI instance that would run the tests on reference environment. We
> would also like to use Jenkins to run tests for every newly submitted pat=
ch
> (so called pre-commit hook), however this can be added after project
> creation.
>
> =3D=3D Initial Committers =3D=3D
>
>   * Ali Rizvi (ali.rizvi at oracle.com)
>   * Arvind Prabhakar (arvind at apache.org)
>   * Brock Noland  (brock at apache.org)
>   * Chaoyu Tang (ctang at cloudera.com)
>   * Daisy Zhou (daisy at wibidata.com)
>   * David Nalley (ke4qqq at apache.org)
>   * Erick Tryzelaar(etryzelaar at iqt.org)
>   * Greg Chanan (gchanan at apache.org)
>   * Hadi Nahari (hnahari at nvidia.com)
>   * Jarek Jarcec Cecho (jarcec at apache.org)
>   * Johnny Zhang (xiaoyuz at cloudera.com)
>   * Karthik Ramachandran (kramachandran at iqt.org)
>   * Mark Grover (mgrover at cloudera.com)
>   * Milo Polte (milo at wibidata.com)
>   * Lenni Kuff  (lskuff at cloudera.com)
>   * Patrick Daly (daly at cloudera.com)
>   * Patrick Hunt (phunt at apache.org)
>   * Prasad Mujumdar (prasadm at apache.org)
>   * Raghu Mani (raghu.mani at oracle.com)
>   * Sean Mackrory (sean at cloudera.com)
>   * Shreepadma Venugopalan (shreepadma at cloudera.com)
>   * Sravya Tirukkovalur (sravya at cloudera.com)
>   * Tom White (tomwhite at apache.org)
>   * Xuefu Zhang (xuefu at apache.org)
>
> =3D=3D Affiliations =3D=3D
>
>   * Ali Rizvi (Oracle)
>   * Arvind Prabhakar (Cloudera)
>   * Brock Noland  (Cloudera)
>   * Chaoyu Tang (Cloudera)
>   * Daisy Zhou (Wibidata)
>   * David Nalley (Citrix)
>   * Erick Tryzelaar (Lab41)
>   * Greg Chanan (Cloudera)
>   * Hadi Nahari (Nvidia)
>   * Jarek Jarcec Cecho (Cloudera)
>   * Johnny Zhang (Cloudera)
>   * Karthik Ramachandran (Lab41)
>   * Mark Grover (Cloudera)
>   * Milo Polte (Wibidata)
>   * Lenni Kuff  (Cloudera)
>   * Patrick Daly (Cloudera)
>   * Patrick Hunt (Cloudera)
>   * Prasad Mujumdar (Cloudera)
>   * Raghu Mani (Oracle)
>   * Sean Mackrory (Cloudera)
>   * Shreepadma Venugopalan (Cloudera)
>   * Sravya Tirukkovalur (Cloudera)
>   * Tom White (Cloudera)
>   * Xuefu Zhang (Cloudera)
>
> =3D=3D Sponsors =3D=3D
>
> =3D=3D=3D Champion =3D=3D=3D
>
>   * Arvind Prabhakar (Cloudera)
>
> =3D=3D=3D Nominated Mentors =3D=3D=3D
>
>   * Arvind Prabhakar (Cloudera)
>   * David Nalley (Citrix)
>   * Joe Brockmeier (Citrix)
>   * Olivier Lamy (Ecetera)
>   * Patrick Hunt (Cloudera)
>   * Tom White (Cloudera)
>
> =3D=3D=3D Sponsoring Entity =3D=3D=3D
>
> We are requesting the Incubator to sponsor this project.
>

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