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From Devaraj Das <>
Subject [VOTE] Accept Apache Knox Hadoop Gateway Project into the Incubator
Date Fri, 15 Feb 2013 01:26:08 GMT
Hi Folks,

Thanks for participating in the discussion. I'd like to call a VOTE
for acceptance of Apache Knox Hadoop Gateway Project into the
Incubator. The vote will close on Feb 21 at 6:00 p.m.

[ ]  +1 Accept Apache Open Climate Workbench into the Incubator
[ ]  +0 Don't care.
[ ]  -1 Don't accept Apache Open Climate Workbench into the Incubator because...

Full proposal is pasted at the bottom of this email, and the
corresponding wiki is Only
VOTEs from Incubator PMC members are binding.

Here's my +1 (binding).


p.s. In the last day, Tom White has been added as a mentor, and
Venkatesh Seetharam has been added in the list of initial committers.

Knox Gateway Proposal


Knox Gateway is a system that provides a single point of secure access
for Apache Hadoop clusters.


The Knox Gateway (“Gateway” or “Knox”) is a system that provides a
single point of authentication and access for Apache Hadoop services
in a cluster. The goal is to simplify Hadoop security for both users
(i.e. who access the cluster data and execute jobs) and operators
(i.e. who control access and manage the cluster). The Gateway runs as
a server (or cluster of servers) that serve one or more Hadoop

Provide perimeter security to make Hadoop security setup easier
Support authentication and token verification security scenarios
Deliver users a single cluster end-point that aggregates capabilities
for data and jobs
Enable integration with enterprise and cloud identity management environments


An Apache Hadoop cluster is presented to consumers as a loose
collection of independent services. This makes it difficult for users
to interact with Hadoop since each service maintains it’s own method
of access and security. As well, for operators, configuration and
administration of a secure Hadoop cluster is a complex and many Hadoop
clusters are insecure as a result.

The goal of the project is to provide coverage for all existing Hadoop
ecosystem projects. In addition, the project will be extensible to
allow for new and/or proprietary Hadoop components without requiring
changes to the gateway source code. The gateway is expected to run in
a DMZ environment where it will provide controlled access to these
Hadoop services. In this way Hadoop clusters can be protected by a
firewall and only limited access provided through the firewall for the
gateway. The authentication components of the gateway will be modular
and extensible such that it can be integrated with existing security


Organizations that are struggling with Hadoop cluster security result
in a) running Hadoop without security or b) slowing adoption of
Hadoop. The Gateway aims to provide perimeter security that integrates
more easily into existing organizations’ security infrastructure.
Doing so will simplify security for these organizations and benefit
all Hadoop stakeholders (i.e. users and operators). Additionally,
making a dedicated perimeter security project part of the Apache
Hadoop ecosystem will prevent fragmentation in this area and further
increase the value of Hadoop as a data platform.

Current Status

Prototype available, developed by the list of initial committers.


We desire to build a diverse developer community around Gateway
following the Apache Way. We want to make the project open source and
will encourage contributors from multiple organizations following the
Apache meritocracy model.


We hope to extend the user and developer base in the future and build
a solid open source community around Gateway. Apache Hadoop has a
large ecosystem of open source projects, each with a strong community
of contributors. All project communities in this ecosystem have an
opportunity to participate in the advancement of the Gateway project
because ultimately, Gateway will enable the security capabilities of
their project to be more enterprise friendly.

Core Developers

Gateway is currently being developed by several engineers from
Hortonworks - Kevin Minder, Larry McCay, John Speidel, Tom Beerbower
and Sumit Mohanty. All the engineers have deep expertise in
middleware, security & identity systems and are quite familiar with
the Hadoop ecosystem.


The ASF is a natural host for Gateway given that it is already the
home of Hadoop, Hive, Pig, HBase, Oozie and other emerging big data
software projects. Gateway is designed to solve the security
challenges familiar to the Hadoop ecosystem family of projects.

Known Risks

Orphaned products & Reliance on Salaried Developers

The core developers plan to work full time on the project. We believe
that this project will be of general interest to many Hadoop users and
will attract a diverse set of contributors. We intend to demonstrate
this by having contributors from several organizations recognized as
committers by the time Knox graduates from incubation.

Inexperience with Open Source

All of the core developers are active users and followers of open
source. As well, Hortonworks and the affiliated mentors have a strong
heritage of success with contributions to Apache Hadoop Projects.

Homogeneous Developers

The current core developers are from Hortonworks, however, we hope to
establish a developer community that includes contributors from
several corporations.

Reliance on Salaried Developers

Currently, the developers are paid to do work on Gateway. However,
once the project has a community built around it, we expect to get
committers and developers from outside the current core developers.

Relationships with Other Apache Products

Gateway is going to be used by the users and operators of Hadoop, and
the Hadoop ecosystem in general.

A Excessive Fascination with the Apache Brand

Our interest in developing Gateway in Apache project is to follow an
established development model, as well since many of the Hadoop
ecosystem projects also are part of Apache, Gateway will complement
those projects by following the same development and contribution


There is documentation in Hortonworks’ internal repositories. These
can be shared upon request and will be transferred into the Apache CM
system if this proposal is accepted.

Initial Source

The current initial source can be found in a GitHub repository.

Source and Intellectual Property Submission Plan

The complete Gateway code is under Apache Software License 2.

External Dependencies

The Gateway dependencies are listed below, separated by Category A and
Category B as defined in the Apache Third-Party Licensing Policy.
Note: These are the direct dependencies. Indirect dependencies are not

Category A Dependencies

Apache Commons - ASLv2.0


Apache Hadoop - ASLv2.0


Apache Geronimo - ASLv2.0


Apache Shiro - ASLv2.0


ApacheDS - ASLv2.0

Log4J - ASLv2.0




Guava - ASLv2.0

HttpClient - ASLv2.0


Jetty - ASLv2.0


JBoss ShrinkWrap - ASLv2.0


Category A Dependencies (Test)

EasyMock - ASLv2.0


XML Matchers - ASLv2.0


Hamcrest - BSDv3


JsonPath - ASLv2.0


XMLTool - ASLv2.0


REST-assured - ASLv2.0


Category B Dependencies

Jersey - CDDLv1.1 or GPL2wCPE


Jerico - EPLv1.0


Servlet - CDDLv1.0 or GPLv2


JUnit - CPLv1.0



The Gateway uses cryptographic software indirectly as a result of
having two dependencies: ApacheDS and Apache Shiro. Gateway does not
include any special or custom cryptographic technologies.

ApacheDS is an ASF project and has been classified Export Commodity
Control Number (ECCN) 5D002.C.1 due to it’s dependency on Bouncy
Castle. More information on the ApacheDS classification can be found

Apache Shiro is an ASF project and has been classified Export
Commodity Control Number (ECCN) 5D002.C.1. More information on the
Apache Shiro classification can be found at

Required Resources

Mailing lists

knox-dev AT incubator DOT apache DOT org knox-commits AT incubator DOT
apache DOT org knox-user AT hms incubator apache DOT org knox-private
AT incubator DOT apache DOT org

Subversion Directory

Issue Tracking


Initial Committers

Kevin Minder (kevin DOT minder AT hortonworks DOT com)

Larry McCay (lmccay AT hortonworks DOT com)

John Speidel (jspeidel AT hortonworks DOT com)
Tom Beerbower (tbeerbower AT hortonworks DOT com)
Sumit Mohanty (smohanty AT hortonworks DOT com)
Venkatesh Seetharam (venkatesh AT hortonworks DOT com)


Kevin Minder (Hortonworks)

Larry McCay (Hortonworks)

John Speidel (Hortonworks)
Tom Beerbower (Hortonworks)
Sumit Mohanty (Hortonworks)
Venkatesh Seetharm (Hortonworks)
Owen O'Malley (Hortonworks)
Mahadev Konar (Hortonworks)
Alan Gates (Hortonworks)
Devaraj Das (Hortwonrks)
Chris Douglas (Microsoft)
Chris Mattmann (NASA)
Tom White (Cloudera)



Devaraj Das (ddas AT apache DOT org)

Nominated Mentors

Owen O’Malley (omalley AT apache DOT org)
Mahadev Konar (mahadev AT apache DOT org)
Alan Gates (gates AT apache DOT org)
Devaraj Das (ddas AT apache DOT org)
Chris Douglas (cdouglas AT apache DOT org)
Chris Mattmann (chris DOT a DOT mattmann AT jpl DOT nasa DOT gov)
Tom White (tom DOT e DOT white AT gmail DOT com)

Sponsoring Entity

Incubator PMC

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