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From Marco de Abreu <marco.g.ab...@googlemail.com.INVALID>
Subject Re: [DISCUSS] Build OSX builds in CI (possibly with TravisCI).
Date Tue, 06 Nov 2018 15:23:36 GMT
Hello,

the PR is available at https://github.com/apache/incubator-mxnet/pull/13137.
I'd appreciate a review and merge.

Best regards,
Marco

On Tue, Nov 6, 2018 at 12:01 AM Marco de Abreu <marco.g.abreu@googlemail.com>
wrote:

> Sorry, wrong link. The right link is:
> https://issues.apache.org/jira/browse/INFRA-17216
>
> -Marco
>
> On Mon, Nov 5, 2018 at 11:59 PM Marco de Abreu <
> marco.g.abreu@googlemail.com> wrote:
>
>> Hello,
>>
>> thanks everybody for taking part in this experiment around Travis CI.
>> Unfortunately, our concerns about the stability of Travis were confirmed
>> and the number of timeouts has increased since we added Python CPU tests.
>>
>> While the tests are marked as non-blocking, they confuse an increasing
>> number of users and make them concerned that they might have made a
>> breaking change in their contribution.
>>
>> I'm currently in discussion with Apache Infra to improve this situation
>> [1], but as an immediate action to improve the user experience, I would
>> like to propose the reduction of the executed workload on Travis by rolling
>> back to the previous state which does not run Python CPU tests. There have
>> been discussions around excluding certain long-running tests, but I'm
>> afraid that assessing the tests and adding proper filtering could take some
>> time. Instead, I would like to go back to only running compilation until we
>> found a long-term solution.
>>
>> We have been receiving requests from other contributors who would like to
>> add more workload to the Travis CI. Thus, I think that we should work on a
>> long-term solution to resolve these constraints once and for all.
>>
>> Tomorrow, I will review further datapoints, have additional conversations
>> with Apache Infra and discuss the idea with a few other contributors. If
>> nobody objects, I would then like to create the PR and kindly request a
>> fellow-committer to then merge that configuration change in order to
>> increase the stability of our CI.
>>
>> Thanks for your understanding.
>>
>> Best regards,
>> Marco
>>
>> [1]: https://issues.apache.org/jira/browse/INFRA-16884
>>
>> On Wed, Sep 19, 2018 at 4:22 PM Marco de Abreu <
>> marco.g.abreu@googlemail.com> wrote:
>>
>>> Hey,
>>>
>>> as of https://github.com/apache/incubator-mxnet/pull/12550, Python CPU
>>> tests for Mac have been enabled in Travis. The first passing run is
>>> available at
>>> https://travis-ci.org/apache/incubator-mxnet/builds/430566392?utm_source=github_status&utm_medium=notification
>>> .
>>>
>>> As stated before, we will keep the status at not-required until we are
>>> sure the system is stable.
>>>
>>> Again, thanks to Kellen for his efforts to get Travis up and running!
>>>
>>> Best regards,
>>> Marco
>>>
>>> On Wed, Sep 19, 2018 at 5:09 AM Hagay Lupesko <lupesko@gmail.com> wrote:
>>>
>>>> Bravo indeed!
>>>> Awesome work Kellen and Marco!
>>>>
>>>> On Tue, Sep 18, 2018 at 7:56 PM Lin Yuan <apeforest@gmail.com> wrote:
>>>>
>>>> > Bravo! This is a very important piece in CI. Thanks Kellen and Marco
>>>> to
>>>> > implement it quickly.
>>>> >
>>>> >
>>>> > Lin
>>>> >
>>>> > On Tue, Sep 18, 2018, 4:18 PM Marco de Abreu
>>>> > <marco.g.abreu@googlemail.com.invalid> wrote:
>>>> >
>>>> > > Kellen has fixed the one bug in our build system and thus, there
>>>> are no
>>>> > > outstanding tests :)
>>>> > >
>>>> > > Exactly, it will run on branch and PR validation.
>>>> > >
>>>> > > Best regards,
>>>> > > Marco
>>>> > >
>>>> > > sandeep krishnamurthy <sandeep.krishna98@gmail.com> schrieb am
>>>> Di., 18.
>>>> > > Sep. 2018, 19:32:
>>>> > >
>>>> > > > This is awesome. Thanks a lot Kellen and Marco. With this work
>>>> > complete,
>>>> > > we
>>>> > > > will have MXNet Python tests running for Mac on Travis CI, for PR
>>>> and
>>>> > > > Branch builds?
>>>> > > > Thank you for working on fixing the tests and making it run as
>>>> part of
>>>> > > > Travis CI for Mac platform. Is there any Github issue or Jira
>>>> where we
>>>> > > can
>>>> > > > see disabled / tests that needs to be fixed for Mac? This might be
>>>> > useful
>>>> > > > if we can call for contributions.
>>>> > > >
>>>> > > > Best,
>>>> > > > Sandeep
>>>> > > >
>>>> > > >
>>>> > > > On Tue, Sep 18, 2018 at 9:51 AM Marco de Abreu
>>>> > > > <marco.g.abreu@googlemail.com.invalid> wrote:
>>>> > > >
>>>> > > > > Hey everyone,
>>>> > > > >
>>>> > > > > we are about to enable Python tests for Mac. The outstanding
>>>> bugs
>>>> > have
>>>> > > > been
>>>> > > > > fixed by Kellen and we're just waiting for the PRs to pass.
>>>> We'll
>>>> > send
>>>> > > a
>>>> > > > > separate email as soon as they are enabled.
>>>> > > > >
>>>> > > > > Additionally, we had a small problem that Travis runs got
>>>> aborted if
>>>> > > > > multiple commits were done in a short timeframe. While this is
>>>> > > acceptable
>>>> > > > > for PRs, this causes our branch jobs to also fail. An examples
>>>> is
>>>> > > > available
>>>> > > > > at [1]. In order to cope with this, I have asked Apache Infra to
>>>> > > disable
>>>> > > > > cancellation of concurrent jobs. They agreed to this, but
>>>> reminded us
>>>> > > > that
>>>> > > > > they might turn it back on if we consume too many resources.
>>>> > > > >
>>>> > > > > The dashboard to review the Travis resource utilization is
>>>> available
>>>> > at
>>>> > > > > [2]. Just log in as Guest.
>>>> > > > >
>>>> > > > > Best regards,
>>>> > > > > Marco
>>>> > > > >
>>>> > > > > [1]:
>>>> > > > >
>>>> > > > >
>>>> > > >
>>>> > >
>>>> >
>>>> https://travis-ci.org/apache/incubator-mxnet/builds/430135867?utm_source=github_status&utm_medium=notification
>>>> > > > > [2]:
>>>> > > > >
>>>> > > > >
>>>> > > >
>>>> > >
>>>> >
>>>> https://demo.kibble.apache.org/dashboard.html?page=ci&source=e0ce4eee89a77ec231eee1fdbbc647cb3de2f6ecfc3cef8d8c11dc2d&interval=hour
>>>> > > > >
>>>> > > > >
>>>> > > > > On Thu, Sep 13, 2018 at 1:06 AM kellen sunderland <
>>>> > > > > kellen.sunderland@gmail.com> wrote:
>>>> > > > >
>>>> > > > > > We've got fairly limited ability to change what's reported by
>>>> > Travis.
>>>> > > > > Most
>>>> > > > > > administration is done by the ASF Infra crew, so it's tough
>>>> for us
>>>> > to
>>>> > > > > > experiment with settings.  It'd be great if you could bear
>>>> with us
>>>> > > for
>>>> > > > a
>>>> > > > > > few days.  It shouldn't take too long to either (1) get
>>>> > happy-feeling
>>>> > > > > green
>>>> > > > > > checks back, or (2) decide we don't care as much as we
>>>> thought we
>>>> > did
>>>> > > > > about
>>>> > > > > > MacOS support.
>>>> > > > > >
>>>> > > > > > On Wed, Sep 12, 2018 at 9:53 PM Aaron Markham <
>>>> > > > aaron.s.markham@gmail.com
>>>> > > > > >
>>>> > > > > > wrote:
>>>> > > > > >
>>>> > > > > > > Is there any way to make it not show a red X failure in the
>>>> > GitHub
>>>> > > UI
>>>> > > > > > when
>>>> > > > > > > TravisCI fails? I keep going back to check what flakey test
>>>> > failed
>>>> > > > this
>>>> > > > > > > time and realizing that Jenkins is still running and it was
>>>> the
>>>> > > "not
>>>> > > > > > > required" Travis fail. The green checkmark makes me happy
>>>> and
>>>> > it's
>>>> > > > > easier
>>>> > > > > > > to keep an eye on what's going on. If Travis times out a
>>>> lot of
>>>> > the
>>>> > > > > time,
>>>> > > > > > > then most of our PRs will look red/bad/sad when they're not.
>>>> > > > > > >
>>>> > > > > > > What about no failure flag set, but add a label that Travis
>>>> > > > failed....
>>>> > > > > or
>>>> > > > > > > if we can't control the flag, auto-set labels for each
>>>> Travis and
>>>> > > > > Jenkins
>>>> > > > > > > pass/fail so we still get the benefit of at-a-glance status
>>>> > checks.
>>>> > > > > > >
>>>> > > > > > > On Wed, Sep 12, 2018 at 6:04 AM Marco de Abreu
>>>> > > > > > > <marco.g.abreu@googlemail.com.invalid> wrote:
>>>> > > > > > >
>>>> > > > > > > > Hello,
>>>> > > > > > > >
>>>> > > > > > > > Travis CI has successfully been enabled just now. This
>>>> means
>>>> > you
>>>> > > > will
>>>> > > > > > now
>>>> > > > > > > > see a new status under your PR which is called
>>>> > > > > > > > "continuous-integration/travis-ci/pr".
>>>> > > > > > > >
>>>> > > > > > > > The job only compiles MXNet on Mac and currently does not
>>>> run
>>>> > > unit
>>>> > > > > > tests
>>>> > > > > > > -
>>>> > > > > > > > we expect the overall execution duration to be around 6
>>>> minutes
>>>> > > and
>>>> > > > > > thus
>>>> > > > > > > > faster than the full Jenkins pipeline. The status is set
>>>> to
>>>> > "not
>>>> > > > > > > required"
>>>> > > > > > > > which means that it does not block merging if that job
>>>> fails
>>>> > > since
>>>> > > > > the
>>>> > > > > > > > pipeline is still in beta. But in general, it would be
>>>> good if
>>>> > > > > > committers
>>>> > > > > > > > review the results in case the job shows a failure. Our
>>>> last
>>>> > > known
>>>> > > > > > state
>>>> > > > > > > is
>>>> > > > > > > > that the pipeline works properly, but we will keep
>>>> everybody up
>>>> > > to
>>>> > > > > date
>>>> > > > > > > in
>>>> > > > > > > > case we get aware of any problems.
>>>> > > > > > > >
>>>> > > > > > > > The next step will be integration of Python CPU unit
>>>> tests.
>>>> > There
>>>> > > > > will
>>>> > > > > > > be a
>>>> > > > > > > > separate email if we got an update on that manner.
>>>> > > > > > > >
>>>> > > > > > > > Special thanks to Kellen Sunderland for the contribution
>>>> of
>>>> > this
>>>> > > > > Travis
>>>> > > > > > > CI
>>>> > > > > > > > pipeline.
>>>> > > > > > > >
>>>> > > > > > > > Best regards,
>>>> > > > > > > > Marco
>>>> > > > > > > >
>>>> > > > > > > > On Wed, Sep 5, 2018 at 8:19 PM Tianqi Chen <
>>>> > > > tqchen@cs.washington.edu
>>>> > > > > >
>>>> > > > > > > > wrote:
>>>> > > > > > > >
>>>> > > > > > > > > Alrite, then I think it is fine as long as we can kept
>>>> up
>>>> > with
>>>> > > > > build
>>>> > > > > > > > speed
>>>> > > > > > > > > without timeout.
>>>> > > > > > > > >
>>>> > > > > > > > >
>>>> > > > > > > > > Tianqi
>>>> > > > > > > > >
>>>> > > > > > > > > On Wed, Sep 5, 2018 at 9:14 AM kellen sunderland <
>>>> > > > > > > > > kellen.sunderland@gmail.com> wrote:
>>>> > > > > > > > >
>>>> > > > > > > > > > Travis actually has explicit support for ccache, it's
>>>> a
>>>> > > > platform
>>>> > > > > > > > feature.
>>>> > > > > > > > > > I've run it and it seems to work quite well.  See for
>>>> > example
>>>> > > > > this
>>>> > > > > > > > build:
>>>> > > > > > > > > >
>>>> > > > > > > >
>>>> > > > > >
>>>> > > >
>>>> >
>>>> https://travis-ci.org/KellenSunderland/incubator-mxnet/builds/424768656
>>>> > > > > > > > > >
>>>> > > > > > > > > > On Wed, Sep 5, 2018 at 7:10 PM Tianqi Chen <
>>>> > > > > > tqchen@cs.washington.edu
>>>> > > > > > > >
>>>> > > > > > > > > > wrote:
>>>> > > > > > > > > >
>>>> > > > > > > > > > > Travis it self is stateless, which means ccache is
>>>> not
>>>> > > likely
>>>> > > > > > going
>>>> > > > > > > > to
>>>> > > > > > > > > > > work. As far as I understand, if jenkins master is
>>>> in the
>>>> > > > > public
>>>> > > > > > > > > domain,
>>>> > > > > > > > > > > you do not need to setup a vpn to the subset of the
>>>> > master.
>>>> > > > > > > > > > >
>>>> > > > > > > > > > > As for versions of MacOS, we are likely going to be
>>>> fine
>>>> > > with
>>>> > > > > one
>>>> > > > > > > > > > version,
>>>> > > > > > > > > > > as usually the problems exhibits on mac are similar
>>>> > > > > > > > > > >
>>>> > > > > > > > > > > Tianqi
>>>> > > > > > > > > > > On Wed, Sep 5, 2018 at 9:04 AM kellen sunderland <
>>>> > > > > > > > > > > kellen.sunderland@gmail.com> wrote:
>>>> > > > > > > > > > >
>>>> > > > > > > > > > > > @Tianqi: Yeah there's going to be a lot of
>>>> trade-offs
>>>> > to
>>>> > > > > using
>>>> > > > > > > > > > Travis.  I
>>>> > > > > > > > > > > > hope we can get it running fast enough with
>>>> ccache that
>>>> > > it
>>>> > > > > > won't
>>>> > > > > > > > > > timeout
>>>> > > > > > > > > > > > when running tests, but even that is
>>>> questionable.  In
>>>> > my
>>>> > > > > > private
>>>> > > > > > > > > > testing
>>>> > > > > > > > > > > > it was running in about 35 minutes and the global
>>>> > timeout
>>>> > > > for
>>>> > > > > > > > Travis
>>>> > > > > > > > > > jobs
>>>> > > > > > > > > > > > is 45 minutes.  I'd say let's run it for a few
>>>> builds
>>>> > and
>>>> > > > see
>>>> > > > > > how
>>>> > > > > > > > it
>>>> > > > > > > > > > > goes.
>>>> > > > > > > > > > > > It won't be enabled in a mode that blocks PRs any
>>>> time
>>>> > > > soon.
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > I don't think physical hardware is a great
>>>> solution.
>>>> > We
>>>> > > > > would
>>>> > > > > > > have
>>>> > > > > > > > > to
>>>> > > > > > > > > > > > purchase the hardware, then maintain security
>>>> updates,
>>>> > > > > install
>>>> > > > > > > > > > different
>>>> > > > > > > > > > > > versions of XCode / MacOS, setup a vpn to our
>>>> jenkins
>>>> > > > master,
>>>> > > > > > > > etc.  I
>>>> > > > > > > > > > > would
>>>> > > > > > > > > > > > also worry that if the machine goes down for
>>>> whatever
>>>> > > > reason
>>>> > > > > it
>>>> > > > > > > > would
>>>> > > > > > > > > > > block
>>>> > > > > > > > > > > > PRs, and someone would have to be physically
>>>> present to
>>>> > > > turn
>>>> > > > > it
>>>> > > > > > > > back
>>>> > > > > > > > > > on.
>>>> > > > > > > > > > > > Even assuming we set all the hardware up it's
>>>> still not
>>>> > > > > > scalable
>>>> > > > > > > so
>>>> > > > > > > > > > we'd
>>>> > > > > > > > > > > > have to over-provision.
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > I'm hoping the Travis solution works for the time
>>>> > being.
>>>> > > If
>>>> > > > > it
>>>> > > > > > > > > doesn't
>>>> > > > > > > > > > > > we'll have to take a look at a few other options,
>>>> but
>>>> > > I've
>>>> > > > > > spent
>>>> > > > > > > a
>>>> > > > > > > > > fair
>>>> > > > > > > > > > > > amount of time thinking about this and I don't
>>>> think
>>>> > > there
>>>> > > > > are
>>>> > > > > > > any
>>>> > > > > > > > > good
>>>> > > > > > > > > > > > options that don't have trade-offs.
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > @Lin: Great!  Thanks for the offer.  There'll be
>>>> a few
>>>> > > > > features
>>>> > > > > > > we
>>>> > > > > > > > > want
>>>> > > > > > > > > > > to
>>>> > > > > > > > > > > > re-enable once the Job gets hooked up again.
>>>> I'll ping
>>>> > > you
>>>> > > > > > when
>>>> > > > > > > > it's
>>>> > > > > > > > > > > ready
>>>> > > > > > > > > > > > and see if there's anything you think would be
>>>> > > interesting
>>>> > > > to
>>>> > > > > > > help
>>>> > > > > > > > > > with.
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > -Kellen
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > On Wed, Sep 5, 2018 at 6:58 PM Lin Yuan <
>>>> > > > apeforest@gmail.com
>>>> > > > > >
>>>> > > > > > > > wrote:
>>>> > > > > > > > > > > >
>>>> > > > > > > > > > > > > Hi Kellen,
>>>> > > > > > > > > > > > >
>>>> > > > > > > > > > > > > I would love to contribute. Please let me know
>>>> if you
>>>> > > > have
>>>> > > > > > any
>>>> > > > > > > > > > > particular
>>>> > > > > > > > > > > > > work item that I can help.
>>>> > > > > > > > > > > > >
>>>> > > > > > > > > > > > > Best,
>>>> > > > > > > > > > > > >
>>>> > > > > > > > > > > > > Lin
>>>> > > > > > > > > > > > >
>>>> > > > > > > > > > > > > On Wed, Sep 5, 2018 at 9:51 AM Tianqi Chen <
>>>> > > > > > > > > tqchen@cs.washington.edu
>>>> > > > > > > > > > >
>>>> > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > is it possible for us to get a MacBook and
>>>> hook it
>>>> > to
>>>> > > > the
>>>> > > > > > > > current
>>>> > > > > > > > > > > > Jenkins
>>>> > > > > > > > > > > > > > CI? Travis OSX usually build from scratch and
>>>> that
>>>> > > was
>>>> > > > > > pretty
>>>> > > > > > > > > slow
>>>> > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > Tianqi
>>>> > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > On Wed, Sep 5, 2018 at 8:49 AM kellen
>>>> sunderland <
>>>> > > > > > > > > > > > > > kellen.sunderland@gmail.com> wrote:
>>>> > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > Great you feel that way Lin, please feel
>>>> free to
>>>> > > > > > contribute
>>>> > > > > > > > if
>>>> > > > > > > > > > you
>>>> > > > > > > > > > > > have
>>>> > > > > > > > > > > > > > any
>>>> > > > > > > > > > > > > > > features you'd like tested.  We are using
>>>> the
>>>> > > travis
>>>> > > > > > image
>>>> > > > > > > > > > xcode9.4
>>>> > > > > > > > > > > > > which
>>>> > > > > > > > > > > > > > > is based on MacOS 10.13.
>>>> > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > On Wed, Sep 5, 2018 at 6:40 PM Lin Yuan <
>>>> > > > > > > apeforest@gmail.com
>>>> > > > > > > > >
>>>> > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > Hi Kellen,
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > Many thanks for your and Marco's effort! I
>>>> > think
>>>> > > > this
>>>> > > > > > is
>>>> > > > > > > a
>>>> > > > > > > > > very
>>>> > > > > > > > > > > > > crucial
>>>> > > > > > > > > > > > > > > > piece to improve MXNet stability.
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > To add some data points:
>>>> > > > > > > > > > > > > > > > 1) Customers using CoreML to MXNet
>>>> converter
>>>> > were
>>>> > > > > > blocked
>>>> > > > > > > > > for a
>>>> > > > > > > > > > > > while
>>>> > > > > > > > > > > > > > > > because the converter was broken and no
>>>> unit
>>>> > test
>>>> > > > was
>>>> > > > > > in
>>>> > > > > > > > > place
>>>> > > > > > > > > > to
>>>> > > > > > > > > > > > > > detect
>>>> > > > > > > > > > > > > > > > that.
>>>> > > > > > > > > > > > > > > > 2) Developers on Mac cannot verify their
>>>> local
>>>> > > > > commits
>>>> > > > > > > > > because
>>>> > > > > > > > > > > some
>>>> > > > > > > > > > > > > > unit
>>>> > > > > > > > > > > > > > > > tests on master were broken. This wasted
>>>> much
>>>> > > time
>>>> > > > > and
>>>> > > > > > > > > resource
>>>> > > > > > > > > > > on
>>>> > > > > > > > > > > > > > > jenkins
>>>> > > > > > > > > > > > > > > > server to detect the failure.
>>>> > > > > > > > > > > > > > > > 3) Please consider running the CI on Mac
>>>> OS
>>>> > 10.13
>>>> > > > > since
>>>> > > > > > > > this
>>>> > > > > > > > > is
>>>> > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > minimum
>>>> > > > > > > > > > > > > > > > Mac OS version that supports CoreML (to
>>>> support
>>>> > > > > CoreML
>>>> > > > > > to
>>>> > > > > > > > > MXNet
>>>> > > > > > > > > > > > > > > converter)
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > Best Regards,
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > Lin
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > On Wed, Sep 5, 2018, 3:02 AM kellen
>>>> sunderland
>>>> > <
>>>> > > > > > > > > > > > > > > > kellen.sunderland@gmail.com>
>>>> > > > > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > I'm bumping this thread as we've
>>>> recently had
>>>> > > our
>>>> > > > > > first
>>>> > > > > > > > > > serious
>>>> > > > > > > > > > > > bug
>>>> > > > > > > > > > > > > > on
>>>> > > > > > > > > > > > > > > > > MacOS that would have been caught by
>>>> enabling
>>>> > > > > Travis.
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > I'm going to do a little experimental
>>>> work
>>>> > > > together
>>>> > > > > > > with
>>>> > > > > > > > > > Marco
>>>> > > > > > > > > > > > with
>>>> > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > goal of enabling a minimal Travis build
>>>> that
>>>> > > will
>>>> > > > > run
>>>> > > > > > > > > python
>>>> > > > > > > > > > > > tests.
>>>> > > > > > > > > > > > > > So
>>>> > > > > > > > > > > > > > > > far
>>>> > > > > > > > > > > > > > > > > I've verified that Travis will in fact
>>>> find a
>>>> > > bug
>>>> > > > > > that
>>>> > > > > > > > > > > currently
>>>> > > > > > > > > > > > > > exists
>>>> > > > > > > > > > > > > > > > in
>>>> > > > > > > > > > > > > > > > > master and has been reproduced by MacOS
>>>> > > clients.
>>>> > > > > > This
>>>> > > > > > > > > > > indicates
>>>> > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > me
>>>> > > > > > > > > > > > > > > > that
>>>> > > > > > > > > > > > > > > > > adding Travis will add value to our CI.
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > My best guess is that it might take us
>>>> some
>>>> > > > > iteration
>>>> > > > > > > > > before
>>>> > > > > > > > > > we
>>>> > > > > > > > > > > > > find
>>>> > > > > > > > > > > > > > a
>>>> > > > > > > > > > > > > > > > > scalable way to integrate Travis.
>>>> Given this
>>>> > > > we're
>>>> > > > > > > going
>>>> > > > > > > > > to
>>>> > > > > > > > > > > > enable
>>>> > > > > > > > > > > > > > > > Travis
>>>> > > > > > > > > > > > > > > > > in non-blocking mode (i.e. failures are
>>>> safe
>>>> > to
>>>> > > > > > ignore
>>>> > > > > > > > for
>>>> > > > > > > > > > the
>>>> > > > > > > > > > > > time
>>>> > > > > > > > > > > > > > > > being).
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > To help mitigate the risk of timeouts,
>>>> and to
>>>> > > > > remove
>>>> > > > > > > > legacy
>>>> > > > > > > > > > > code
>>>> > > > > > > > > > > > > I'm
>>>> > > > > > > > > > > > > > > > going
>>>> > > > > > > > > > > > > > > > > to re-create the travis.yml file from
>>>> > > scratch.  I
>>>> > > > > > think
>>>> > > > > > > > > it'll
>>>> > > > > > > > > > > be
>>>> > > > > > > > > > > > > much
>>>> > > > > > > > > > > > > > > > less
>>>> > > > > > > > > > > > > > > > > confusing if we only have working code
>>>> > related
>>>> > > to
>>>> > > > > > > Travis
>>>> > > > > > > > in
>>>> > > > > > > > > > our
>>>> > > > > > > > > > > > > > > codebase,
>>>> > > > > > > > > > > > > > > > > so that contributors won't have to
>>>> experiment
>>>> > > to
>>>> > > > > see
>>>> > > > > > > what
>>>> > > > > > > > > is
>>>> > > > > > > > > > or
>>>> > > > > > > > > > > > > isn't
>>>> > > > > > > > > > > > > > > > > working.  We've got some great, but
>>>> slightly
>>>> > > > > > > out-of-date
>>>> > > > > > > > > > > > > > functionality
>>>> > > > > > > > > > > > > > > in
>>>> > > > > > > > > > > > > > > > > the legacy .travis.yml file.  I hope we
>>>> can
>>>> > > work
>>>> > > > > > > together
>>>> > > > > > > > > to
>>>> > > > > > > > > > > > update
>>>> > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > legacy features, ensure they work with
>>>> the
>>>> > > > current
>>>> > > > > > > folder
>>>> > > > > > > > > > > > structure
>>>> > > > > > > > > > > > > > and
>>>> > > > > > > > > > > > > > > > > also make sure the features run within
>>>> > Travis's
>>>> > > > 45
>>>> > > > > > > minute
>>>> > > > > > > > > > > global
>>>> > > > > > > > > > > > > time
>>>> > > > > > > > > > > > > > > > > window.
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > I'd also like to set expectations that
>>>> this
>>>> > is
>>>> > > > > > > strictly a
>>>> > > > > > > > > > > > volunteer
>>>> > > > > > > > > > > > > > > > > effort.  I'd welcome help from the
>>>> community
>>>> > > for
>>>> > > > > > > support
>>>> > > > > > > > > and
>>>> > > > > > > > > > > > > > > maintenance.
>>>> > > > > > > > > > > > > > > > > The model downloading caching work
>>>> > particularly
>>>> > > > > > stands
>>>> > > > > > > > out
>>>> > > > > > > > > to
>>>> > > > > > > > > > > me
>>>> > > > > > > > > > > > as
>>>> > > > > > > > > > > > > > > > > something I'd like to re-enable again
>>>> as soon
>>>> > > as
>>>> > > > > > > > possible.
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > -Kellen
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > On Tue, Jan 9, 2018 at 11:52 AM Marco de
>>>> > Abreu
>>>> > > <
>>>> > > > > > > > > > > > > > > > > marco.g.abreu@googlemail.com>
>>>> > > > > > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > Looks good! +1
>>>> > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > On Tue, Jan 9, 2018 at 10:24 AM,
>>>> kellen
>>>> > > > > sunderland
>>>> > > > > > <
>>>> > > > > > > > > > > > > > > > > > kellen.sunderland@gmail.com> wrote:
>>>> > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > I think most were in favour of at a
>>>> > minimum
>>>> > > > > > > creating
>>>> > > > > > > > a
>>>> > > > > > > > > > > clang
>>>> > > > > > > > > > > > > > build
>>>> > > > > > > > > > > > > > > so
>>>> > > > > > > > > > > > > > > > > > I've
>>>> > > > > > > > > > > > > > > > > > > created a PR
>>>> > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > >
>>>> > > https://github.com/apache/incubator-mxnet/pull/9330/commits/
>>>> > > > > > > > > > > > > > > > > > >
>>>> 84089ea14123ebe4d66cc92e82a2d529cfbd8b19.
>>>> > > > > > > > > > > > > > > > > > > My hope is this will catch many of
>>>> the
>>>> > > issues
>>>> > > > > > > > blocking
>>>> > > > > > > > > > OSX
>>>> > > > > > > > > > > > > > builds.
>>>> > > > > > > > > > > > > > > > In
>>>> > > > > > > > > > > > > > > > > > fact
>>>> > > > > > > > > > > > > > > > > > > it already caught one issue.  If
>>>> you guys
>>>> > > are
>>>> > > > > in
>>>> > > > > > > > > favour I
>>>> > > > > > > > > > > can
>>>> > > > > > > > > > > > > > > remove
>>>> > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > WIP and ask that it be merged.
>>>> > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > On Thu, Jan 4, 2018 at 6:29 PM,
>>>> Chris
>>>> > > > Olivier <
>>>> > > > > > > > > > > > > > > cjolivier01@gmail.com
>>>> > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > Nope, I have been on vacation.
>>>> > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > On Thu, Jan 4, 2018 at 9:10 AM,
>>>> kellen
>>>> > > > > > > sunderland <
>>>> > > > > > > > > > > > > > > > > > > > kellen.sunderland@gmail.com>
>>>> wrote:
>>>> > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > Hope everyone had a good
>>>> break.  Just
>>>> > > > > wanted
>>>> > > > > > to
>>>> > > > > > > > > check
>>>> > > > > > > > > > > if
>>>> > > > > > > > > > > > > > there
>>>> > > > > > > > > > > > > > > > were
>>>> > > > > > > > > > > > > > > > > > > > further
>>>> > > > > > > > > > > > > > > > > > > > > thoughts on OSX builds.  Chris,
>>>> did
>>>> > you
>>>> > > > > have
>>>> > > > > > > time
>>>> > > > > > > > > to
>>>> > > > > > > > > > > look
>>>> > > > > > > > > > > > > > into
>>>> > > > > > > > > > > > > > > > > > > > virtualizing
>>>> > > > > > > > > > > > > > > > > > > > > Mac OS?  Would it make sense
>>>> for us
>>>> > to
>>>> > > > put
>>>> > > > > > > > > something
>>>> > > > > > > > > > in
>>>> > > > > > > > > > > > > place
>>>> > > > > > > > > > > > > > > in
>>>> > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > interim e.g. the clang solution?
>>>> > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > On Tue, Dec 12, 2017 at 7:59
>>>> PM, de
>>>> > > > Abreu,
>>>> > > > > > > Marco
>>>> > > > > > > > <
>>>> > > > > > > > > > > > > > > > > mabreu@amazon.com>
>>>> > > > > > > > > > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > > Thanks for looking into this,
>>>> > Chris!
>>>> > > No
>>>> > > > > > > hurries
>>>> > > > > > > > > on
>>>> > > > > > > > > > > that
>>>> > > > > > > > > > > > > > one,
>>>> > > > > > > > > > > > > > > > > we’ll
>>>> > > > > > > > > > > > > > > > > > > look
>>>> > > > > > > > > > > > > > > > > > > > > > into it next stage when we
>>>> add new
>>>> > > > > system-
>>>> > > > > > > and
>>>> > > > > > > > > > > > > > > > > build-configurations
>>>> > > > > > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > > CI.
>>>> > > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > > On 12.12.17, 19:12, "Chris
>>>> > Olivier" <
>>>> > > > > > > > > > > > > cjolivier01@gmail.com
>>>> > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     I am on vacation starting
>>>> > > Thursday.
>>>> > > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     On Tue, Dec 12, 2017 at
>>>> 9:49 AM
>>>> > > > > kellen
>>>> > > > > > > > > > > sunderland <
>>>> > > > > > > > > > > > > > > > > > > > > >
>>>> kellen.sunderland@gmail.com>
>>>> > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > Absolutely, let's do an
>>>> > > > > investigation
>>>> > > > > > > and
>>>> > > > > > > > > see
>>>> > > > > > > > > > > if
>>>> > > > > > > > > > > > > it's
>>>> > > > > > > > > > > > > > > > > > possible
>>>> > > > > > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > > > > > >     > virtualize.  Would you
>>>> have
>>>> > > time
>>>> > > > to
>>>> > > > > > > look
>>>> > > > > > > > > into
>>>> > > > > > > > > > > it
>>>> > > > > > > > > > > > a
>>>> > > > > > > > > > > > > > bit
>>>> > > > > > > > > > > > > > > > > > further?
>>>> > > > > > > > > > > > > > > > > > > > > >     >
>>>> > > > > > > > > > > > > > > > > > > > > >     > On Tue, Dec 12, 2017 at
>>>> 6:47
>>>> > > PM,
>>>> > > > > > Chris
>>>> > > > > > > > > > Olivier
>>>> > > > > > > > > > > <
>>>> > > > > > > > > > > > > > > > > > > > > > cjolivier01@gmail.com>
>>>> > > > > > > > > > > > > > > > > > > > > >     > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > Don’t get me wrong,
>>>> I’m not
>>>> > > > > saying
>>>> > > > > > > this
>>>> > > > > > > > > Mac
>>>> > > > > > > > > > > OS
>>>> > > > > > > > > > > > > > > Jenkins
>>>> > > > > > > > > > > > > > > > > > > solution
>>>> > > > > > > > > > > > > > > > > > > > > is
>>>> > > > > > > > > > > > > > > > > > > > > > doable
>>>> > > > > > > > > > > > > > > > > > > > > >     > > but I feel like we
>>>> should
>>>> > > > > > investigate
>>>> > > > > > > > > > because
>>>> > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > payoff
>>>> > > > > > > > > > > > > > > > > > > would
>>>> > > > > > > > > > > > > > > > > > > > be
>>>> > > > > > > > > > > > > > > > > > > > > > large.
>>>> > > > > > > > > > > > > > > > > > > > > >     > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > On Tue, Dec 12, 2017
>>>> at
>>>> > 9:38
>>>> > > AM
>>>> > > > > > Chris
>>>> > > > > > > > > > > Olivier <
>>>> > > > > > > > > > > > > > > > > > > > > > cjolivier01@gmail.com>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > > Apple’s Darwin OS Is
>>>> > > recently
>>>> > > > > > > > > > open-sourced.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >
>>>> > > > > > > > > https://github.com/PureDarwin/PureDarwin
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > > How to convert this
>>>> into
>>>> > a
>>>> > > > > > non-GUI
>>>> > > > > > > > VM I
>>>> > > > > > > > > > am
>>>> > > > > > > > > > > > not
>>>> > > > > > > > > > > > > > sure
>>>> > > > > > > > > > > > > > > > > but I
>>>> > > > > > > > > > > > > > > > > > > am
>>>> > > > > > > > > > > > > > > > > > > > > > willing to
>>>> > > > > > > > > > > > > > > > > > > > > >     > > > bet that people
>>>> have done
>>>> > > it
>>>> > > > > > > already.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > > On Tue, Dec 12,
>>>> 2017 at
>>>> > > 9:16
>>>> > > > AM
>>>> > > > > > > > kellen
>>>> > > > > > > > > > > > > > sunderland <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >
>>>> > > kellen.sunderland@gmail.com>
>>>> > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> It might be
>>>> technically
>>>> > > > > > possible,
>>>> > > > > > > > but
>>>> > > > > > > > > I
>>>> > > > > > > > > > > > think
>>>> > > > > > > > > > > > > it
>>>> > > > > > > > > > > > > > > > would
>>>> > > > > > > > > > > > > > > > > > > > violate
>>>> > > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > >     > MacOS
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> license:
>>>> > > > > > http://store.apple.com/
>>>> > > > > > > > > > > > > > > > > > > > Catalog/US/Images/MacOSX.htm
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> "2. Permitted
>>>> License
>>>> > Uses
>>>> > > > and
>>>> > > > > > > > > > > Restrictions.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> A. This License
>>>> allows
>>>> > you
>>>> > > > to
>>>> > > > > > > > install
>>>> > > > > > > > > > and
>>>> > > > > > > > > > > > use
>>>> > > > > > > > > > > > > > one
>>>> > > > > > > > > > > > > > > > copy
>>>> > > > > > > > > > > > > > > > > > of
>>>> > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > > Apple
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> Software on a
>>>> single
>>>> > > > > > Apple-labeled
>>>> > > > > > > > > > > computer
>>>> > > > > > > > > > > > > at a
>>>> > > > > > > > > > > > > > > > time.
>>>> > > > > > > > > > > > > > > > > > > This
>>>> > > > > > > > > > > > > > > > > > > > > > License
>>>> > > > > > > > > > > > > > > > > > > > > >     > does
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> not allow the Apple
>>>> > > Software
>>>> > > > > to
>>>> > > > > > > > exist
>>>> > > > > > > > > on
>>>> > > > > > > > > > > > more
>>>> > > > > > > > > > > > > > than
>>>> > > > > > > > > > > > > > > > one
>>>> > > > > > > > > > > > > > > > > > > > > computer
>>>> > > > > > > > > > > > > > > > > > > > > > at a
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> time,and you may
>>>> not
>>>> > make
>>>> > > > the
>>>> > > > > > > Apple
>>>> > > > > > > > > > > Software
>>>> > > > > > > > > > > > > > > > available
>>>> > > > > > > > > > > > > > > > > > > over
>>>> > > > > > > > > > > > > > > > > > > > a
>>>> > > > > > > > > > > > > > > > > > > > > > network
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> where
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> it could be used by
>>>> > > multiple
>>>> > > > > > > > computers
>>>> > > > > > > > > > at
>>>> > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > same
>>>> > > > > > > > > > > > > > > > > time.
>>>> > > > > > > > > > > > > > > > > > > You
>>>> > > > > > > > > > > > > > > > > > > > > > may make
>>>> > > > > > > > > > > > > > > > > > > > > >     > > one
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> copy of the Apple
>>>> > Software
>>>> > > > > > > > (excluding
>>>> > > > > > > > > > the
>>>> > > > > > > > > > > > Boot
>>>> > > > > > > > > > > > > > ROM
>>>> > > > > > > > > > > > > > > > > code)
>>>> > > > > > > > > > > > > > > > > > > in
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> machine-readable
>>>> form
>>>> > for
>>>> > > > > backup
>>>> > > > > > > > > > purposes
>>>> > > > > > > > > > > > > only;
>>>> > > > > > > > > > > > > > > > > provided
>>>> > > > > > > > > > > > > > > > > > > > that
>>>> > > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > >     > backup
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> copy must include
>>>> all
>>>> > > > > copyright
>>>> > > > > > or
>>>> > > > > > > > > other
>>>> > > > > > > > > > > > > > > proprietary
>>>> > > > > > > > > > > > > > > > > > > notices
>>>> > > > > > > > > > > > > > > > > > > > > > contained
>>>> > > > > > > > > > > > > > > > > > > > > >     > > on
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> the original. "
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> I could be wrong
>>>> though,
>>>> > > > does
>>>> > > > > > > anyone
>>>> > > > > > > > > > know
>>>> > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > details
>>>> > > > > > > > > > > > > > > > > of
>>>> > > > > > > > > > > > > > > > > > > > MacOS
>>>> > > > > > > > > > > > > > > > > > > > > >     > > licensing /
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> virtualization?
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> On Tue, Dec 12,
>>>> 2017 at
>>>> > > 6:10
>>>> > > > > PM,
>>>> > > > > > > > Chris
>>>> > > > > > > > > > > > > Olivier <
>>>> > > > > > > > > > > > > > > > > > > > > > cjolivier01@gmail.com
>>>> > > > > > > > > > > > > > > > > > > > > >     > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > googling seems
>>>> to be
>>>> > > full
>>>> > > > of
>>>> > > > > > > > running
>>>> > > > > > > > > > OSX
>>>> > > > > > > > > > > > > (and
>>>> > > > > > > > > > > > > > > even
>>>> > > > > > > > > > > > > > > > > > > > > > open-sourced
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> PureDarwin)
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > in VMs. One could
>>>> > > > > conceivably
>>>> > > > > > > run
>>>> > > > > > > > a
>>>> > > > > > > > > VM
>>>> > > > > > > > > > > on
>>>> > > > > > > > > > > > an
>>>> > > > > > > > > > > > > > EC2
>>>> > > > > > > > > > > > > > > > > > > instance,
>>>> > > > > > > > > > > > > > > > > > > > > > right?
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > On Tue, Dec 12,
>>>> 2017
>>>> > at
>>>> > > > 9:01
>>>> > > > > > AM
>>>> > > > > > > > > kellen
>>>> > > > > > > > > > > > > > > sunderland
>>>> > > > > > > > > > > > > > > > <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> >
>>>> > > > kellen.sunderland@gmail.com
>>>> > > > > >
>>>> > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > It would be
>>>> ideal if
>>>> > > we
>>>> > > > > > could
>>>> > > > > > > > > cover
>>>> > > > > > > > > > > OSX
>>>> > > > > > > > > > > > in
>>>> > > > > > > > > > > > > > > > > Jenkins,
>>>> > > > > > > > > > > > > > > > > > > but
>>>> > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > > only
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> solution
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > that I'm aware
>>>> of
>>>> > > would
>>>> > > > > > > require
>>>> > > > > > > > > > > physical
>>>> > > > > > > > > > > > > > > > machines
>>>> > > > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > > > be
>>>> > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > >     > workers.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> I
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > would be weakly
>>>> > > opposed
>>>> > > > to
>>>> > > > > > > > having
>>>> > > > > > > > > > > > physical
>>>> > > > > > > > > > > > > > > > servers
>>>> > > > > > > > > > > > > > > > > > > > running
>>>> > > > > > > > > > > > > > > > > > > > > > on PRs.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> The
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > downsides that
>>>> I see
>>>> > > in
>>>> > > > > > order
>>>> > > > > > > of
>>>> > > > > > > > > > > > > importance:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > -  We can't
>>>> > autoscale
>>>> > > > > > physical
>>>> > > > > > > > > > > hardware.
>>>> > > > > > > > > > > > > >  If
>>>> > > > > > > > > > > > > > > we
>>>> > > > > > > > > > > > > > > > > > find
>>>> > > > > > > > > > > > > > > > > > > > that
>>>> > > > > > > > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > >     > load
>>>> > > > > > > > > > > > > > > > > > > > > >     > > is
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > too
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > high we have
>>>> to buy
>>>> > > more
>>>> > > > > > > > machines.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > -  Security
>>>> would be
>>>> > > > > tricky,
>>>> > > > > > > as
>>>> > > > > > > > > > they'd
>>>> > > > > > > > > > > > > have
>>>> > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > be
>>>> > > > > > > > > > > > > > > > > > > > > connected
>>>> > > > > > > > > > > > > > > > > > > > > > to the
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > internet
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > and then to our
>>>> > Jekins
>>>> > > > > > master
>>>> > > > > > > > > > > instance.
>>>> > > > > > > > > > > > > > > > > Connecting
>>>> > > > > > > > > > > > > > > > > > > via
>>>> > > > > > > > > > > > > > > > > > > > a
>>>> > > > > > > > > > > > > > > > > > > > > > wired
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> network
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > would probably
>>>> not
>>>> > be
>>>> > > > > > possible
>>>> > > > > > > > on
>>>> > > > > > > > > > most
>>>> > > > > > > > > > > > > > > corporate
>>>> > > > > > > > > > > > > > > > > > > > networks
>>>> > > > > > > > > > > > > > > > > > > > > > as these
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > machines
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > are by
>>>> definition
>>>> > > > running
>>>> > > > > > > > > arbitrary
>>>> > > > > > > > > > > code
>>>> > > > > > > > > > > > > > from
>>>> > > > > > > > > > > > > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > > internet.  Many
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > corporate
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > sites have
>>>> public
>>>> > wifi
>>>> > > > > that
>>>> > > > > > > this
>>>> > > > > > > > > > > machine
>>>> > > > > > > > > > > > > > could
>>>> > > > > > > > > > > > > > > > > > > > potentially
>>>> > > > > > > > > > > > > > > > > > > > > > connect
>>>> > > > > > > > > > > > > > > > > > > > > >     > > to,
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > but
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > then our PRs
>>>> start
>>>> > > > failing
>>>> > > > > > if
>>>> > > > > > > > the
>>>> > > > > > > > > > wifi
>>>> > > > > > > > > > > > > > > > disconnects
>>>> > > > > > > > > > > > > > > > > > > > > > temporarily.
>>>> > > > > > > > > > > > > > > > > > > > > >     > To
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > connect
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > to the master
>>>> we
>>>> > would
>>>> > > > > need
>>>> > > > > > to
>>>> > > > > > > > > > setup a
>>>> > > > > > > > > > > > vpn
>>>> > > > > > > > > > > > > > > > > solution
>>>> > > > > > > > > > > > > > > > > > > with
>>>> > > > > > > > > > > > > > > > > > > > > > endpoints
>>>> > > > > > > > > > > > > > > > > > > > > >     > > in
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> our
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > vpc on AWS.
>>>> This is
>>>> > > > > > possible
>>>> > > > > > > > but
>>>> > > > > > > > > > > would
>>>> > > > > > > > > > > > > > > probably
>>>> > > > > > > > > > > > > > > > > > > > require a
>>>> > > > > > > > > > > > > > > > > > > > > > lot of
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > security
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > work.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > -  We can't
>>>> just
>>>> > > create
>>>> > > > a
>>>> > > > > > > simple
>>>> > > > > > > > > > > startup
>>>> > > > > > > > > > > > > > > script
>>>> > > > > > > > > > > > > > > > or
>>>> > > > > > > > > > > > > > > > > > > yaml
>>>> > > > > > > > > > > > > > > > > > > > > > file that
>>>> > > > > > > > > > > > > > > > > > > > > >     > is
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > checked into
>>>> GitHub
>>>> > to
>>>> > > > > > manage
>>>> > > > > > > > the
>>>> > > > > > > > > > > > machine.
>>>> > > > > > > > > > > > > > > > > Someone
>>>> > > > > > > > > > > > > > > > > > > will
>>>> > > > > > > > > > > > > > > > > > > > > > actually
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> have to
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > physically
>>>> > administer
>>>> > > > the
>>>> > > > > > > > machine,
>>>> > > > > > > > > > > apply
>>>> > > > > > > > > > > > > > > > updates,
>>>> > > > > > > > > > > > > > > > > > etc.
>>>> > > > > > > > > > > > > > > > > > > > > > which will
>>>> > > > > > > > > > > > > > > > > > > > > >     > > make
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > community
>>>> ownership
>>>> > > > > > difficult.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > Specific to an
>>>> OSX
>>>> > > > build:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > -  We can't
>>>> > virtualize
>>>> > > > OSX
>>>> > > > > > > which
>>>> > > > > > > > > > means
>>>> > > > > > > > > > > > > we'd
>>>> > > > > > > > > > > > > > > only
>>>> > > > > > > > > > > > > > > > > be
>>>> > > > > > > > > > > > > > > > > > > able
>>>> > > > > > > > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > > > > > > cover
>>>> > > > > > > > > > > > > > > > > > > > > >     > > one
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> OSX
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > build
>>>> environment
>>>> > per
>>>> > > > > > physical
>>>> > > > > > > > > > device.
>>>> > > > > > > > > > > > We
>>>> > > > > > > > > > > > > > > > > couldn't
>>>> > > > > > > > > > > > > > > > > > > > > target a
>>>> > > > > > > > > > > > > > > > > > > > > >     > matrix
>>>> > > > > > > > > > > > > > > > > > > > > >     > > of
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > OSX
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > and Xcode
>>>> versions
>>>> > as
>>>> > > in
>>>> > > > > > > Travis.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > -Kellen
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > On Tue, Dec
>>>> 12, 2017
>>>> > > at
>>>> > > > > 5:46
>>>> > > > > > > PM,
>>>> > > > > > > > > > Chris
>>>> > > > > > > > > > > > > > > Olivier <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > cjolivier01@gmail.com
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > So why
>>>> Travis when
>>>> > > we
>>>> > > > > > could
>>>> > > > > > > > > > possibly
>>>> > > > > > > > > > > > use
>>>> > > > > > > > > > > > > > > > > Jenkins?
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > On Tue, Dec
>>>> 12,
>>>> > 2017
>>>> > > > at
>>>> > > > > > 7:59
>>>> > > > > > > > AM
>>>> > > > > > > > > > > Marco
>>>> > > > > > > > > > > > de
>>>> > > > > > > > > > > > > > > > Abreu <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > >
>>>> > > > > > > marco.g.abreu@googlemail.com>
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > Yes that's
>>>> > > correct,
>>>> > > > > > Chris.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > Am
>>>> 12.12.2017
>>>> > 4:46
>>>> > > > > > nachm.
>>>> > > > > > > > > > schrieb
>>>> > > > > > > > > > > > > "Chris
>>>> > > > > > > > > > > > > > > > > > Olivier"
>>>> > > > > > > > > > > > > > > > > > > <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > >
>>>> > cjolivier01@gmail.com
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > >:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > A quick
>>>> google
>>>> > > > > search
>>>> > > > > > > > seems
>>>> > > > > > > > > to
>>>> > > > > > > > > > > > > > indicate
>>>> > > > > > > > > > > > > > > > that
>>>> > > > > > > > > > > > > > > > > > Mac
>>>> > > > > > > > > > > > > > > > > > > > can
>>>> > > > > > > > > > > > > > > > > > > > > > be used
>>>> > > > > > > > > > > > > > > > > > > > > >     > > as
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> a
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > Jenkins
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > slave.
>>>> Is this
>>>> > > > > > correct?
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > On Tue,
>>>> Dec
>>>> > 12,
>>>> > > > 2017
>>>> > > > > > at
>>>> > > > > > > > 7:42
>>>> > > > > > > > > > AM
>>>> > > > > > > > > > > > > > Steffen
>>>> > > > > > > > > > > > > > > > > > Rochel <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > >
>>>> > > > steffenrochel@gmail.com
>>>> > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > +1 for
>>>> #1
>>>> > and
>>>> > > #2
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > I’m
>>>> working
>>>> > on
>>>> > > > > > > getting a
>>>> > > > > > > > > > > MacPro
>>>> > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > add
>>>> > > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > CI
>>>> > > > > > > > > > > > > > > > > > > > > system.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > On
>>>> Tue, Dec
>>>> > > 12,
>>>> > > > > 2017
>>>> > > > > > > at
>>>> > > > > > > > > 1:43
>>>> > > > > > > > > > > AM
>>>> > > > > > > > > > > > > > kellen
>>>> > > > > > > > > > > > > > > > > > > > sunderland
>>>> > > > > > > > > > > > > > > > > > > > > <
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > >
>>>> > > > > > > > > kellen.sunderland@gmail.com
>>>> > > > > > > > > > >
>>>> > > > > > > > > > > > > wrote:
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> > Background:
>>>> > > > > > > TravisCI
>>>> > > > > > > > > is a
>>>> > > > > > > > > > > > > startup
>>>> > > > > > > > > > > > > > > > > > providing
>>>> > > > > > > > > > > > > > > > > > > > > > managed
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> continuous
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> > integration
>>>> > > > > > services
>>>> > > > > > > > > with
>>>> > > > > > > > > > > > GitHub
>>>> > > > > > > > > > > > > > > > > > integration
>>>> > > > > > > > > > > > > > > > > > > > and
>>>> > > > > > > > > > > > > > > > > > > > > > YAML
>>>> > > > > > > > > > > > > > > > > > > > > >     > > based
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > >
>>>> > configuration.
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> TravisCI
>>>> > is
>>>> > > > one
>>>> > > > > of
>>>> > > > > > > the
>>>> > > > > > > > > few
>>>> > > > > > > > > > > CI
>>>> > > > > > > > > > > > > > > > providers
>>>> > > > > > > > > > > > > > > > > > that
>>>> > > > > > > > > > > > > > > > > > > > > will
>>>> > > > > > > > > > > > > > > > > > > > > > build
>>>> > > > > > > > > > > > > > > > > > > > > >     > a
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > variety
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > of
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> OSX/MacOS
>>>> > > > builds
>>>> > > > > > for
>>>> > > > > > > > > > > software
>>>> > > > > > > > > > > > > > > > projects.
>>>> > > > > > > > > > > > > > > > > > > Their
>>>> > > > > > > > > > > > > > > > > > > > > > pricing
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> ranges
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > from
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > Free
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > > (for
>>>> open
>>>> > > > > source,
>>>> > > > > > 1
>>>> > > > > > > > > > > concurrent
>>>> > > > > > > > > > > > > > job,
>>>> > > > > > > > > > > > > > > to
>>>> > > > > > > > > > > > > > > > > > $489
>>>> > > > > > > > > > > > > > > > > > > > > > monthly for
>>>> > > > > > > > > > > > > > > > > > > > > >     > 10
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > concurrent
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > jobs).
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> Problem:
>>>> > > We’ve
>>>> > > > > > had a
>>>> > > > > > > > few
>>>> > > > > > > > > > OSX
>>>> > > > > > > > > > > > > build
>>>> > > > > > > > > > > > > > > > > issues
>>>> > > > > > > > > > > > > > > > > > > slip
>>>> > > > > > > > > > > > > > > > > > > > > > into
>>>> > > > > > > > > > > > > > > > > > > > > >     > MXNet
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > master
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > in
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > the
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > > past
>>>> few
>>>> > > > weeks.
>>>> > > > > > > We’ve
>>>> > > > > > > > > > > > > previously
>>>> > > > > > > > > > > > > > > had
>>>> > > > > > > > > > > > > > > > a
>>>> > > > > > > > > > > > > > > > > > > Travis
>>>> > > > > > > > > > > > > > > > > > > > > CI
>>>> > > > > > > > > > > > > > > > > > > > > > based
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> testing
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > system
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > that
>>>> > > > > > > > > > > > > > > > > > > > > >     > > >> > > > > > > >
>>>> would have
>>>> > > > > caught
>>>>
>>>

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