Agreed with Bhavin. 

One point which is being mentioned here is abort the previous build if a new 
change is being published on same PR. 
Which can be achievable by just changing the job configuration “Cancel build on 
update” under Trigger setup. 
https://github.com/jenkinsci/ghprb-plugin/issues/379 is the git hub discussion 
page for same.

-Gautam 


On 9/12/17, 9:43 PM, "Lin, Haibin" <haibi...@amazon.com> wrote:

    Also +1 on this. 
    
    Haibin
    
    On 9/12/17, 9:28 PM, "Chris Olivier" <cjolivie...@gmail.com> wrote:
    
        +1 to this
        
        On Tue, Sep 12, 2017 at 8:48 PM Bhavin Thaker <bhavintha...@gmail.com>
        wrote:
        
        > My vote is to make the CI build and test process lightweight and 
efficient
        > and not involve a human to give a go-ahead for a PR build.
        >
        > There are multiple ways to engineer a stable and efficient CI system,
        > (already discussed on this email thread), including canceling 
previously
        > running build for a particular PR before invoking a new build, using
        > Incredibuild, adding more machines to CI, etc.
        >
        > In short, as we scale to many engineers working on MXNet around the 
globe
        > in different time-zones, precious human involvement should be minimal 
and
        > be used judiciously only for critical things like code-review and only
        > after sufficient amount of sanity build-tests have passed.
        >
        > Let the machines work harder for humans and not the other way around.
        >
        > Bhavin Thaker.
        >
        > On Tue, Sep 12, 2017 at 12:20 PM Chris Olivier <cjolivie...@gmail.com>
        > wrote:
        >
        > > The majority of these iterations is to trigger a build on the 
broken CI
        > in
        > > hopes it will finally pass...
        > >
        > > On Tue, Sep 12, 2017 at 11:15 AM Madan Jampani 
<madan.jamp...@gmail.com>
        > > wrote:
        > >
        > > > +1
        > > > I second only running sanity test (lint) until manual approval.
        > > >
        > > > On Tue, Sep 12, 2017 at 11:05 AM, Naveen Swamy 
<mnnav...@gmail.com>
        > > wrote:
        > > >
        > > > > Just to be clear, the proposal is not to remove the PR build. 
It's
        > only
        > > > to
        > > > > delay the PR build until a reviewer has looked at it and marks 
it
        > > > Approved
        > > > > or adds a Label to build. Once it's approved and PR build 
succeeds a
        > > > > reviewer/committer can see the build result and merge to the 
master.
        > > > >
        > > > > I don't mean to pick on the author of this PR(Chris), I am just 
using
        > > > this
        > > > > build to support my argument.
        > > > > https://builds.apache.org/view/Incubator%20Projects/job/
        > > > > incubator-mxnet/view/change-requests/job/PR-7577/
        > > > >  This has gone through 74 iterations, I understand not all of 
them
        > are
        > > > due
        > > > > to changes and some of them are due to build instability and 
some
        > dummy
        > > > > commits to getting the PR build to pass. However, the PR has 
been
        > under
        > > > > review and changes being made for the last several days. I don't
        > think
        > > it
        > > > > warrants a build trigger for every new change. Each build on 
average
        > > > takes
        > > > > about 2 hours running on all platforms.
        > > > >
        > > > > Probably we can run a lean down version of the current PR build 
where
        > > we
        > > > > have sanity-test(lint)->build on linux(cpu)->unit test on 
linux(cpu)
        > ?
        > > > >
        > > > >
        > > > > Thanks, Naveen
        > > > >
        > > > >
        > > > >
        > > > >
        > > > > On Tue, Sep 12, 2017 at 4:27 AM, Joern Kottmann 
<kottm...@gmail.com>
        > > > > wrote:
        > > > >
        > > > > > Not sure how it works with jenkins, but other CI serves can 
look at
        > > > > > the commit message and skip the CI run based on certain 
commands in
        > > > > > it.
        > > > > >
        > > > > > Might make sense for small changes such as documentation 
updates,
        > > half
        > > > > > done PRs, etc.
        > > > > >
        > > > > > Jörn
        > > > > >
        > > > > > On Tue, Sep 12, 2017 at 11:17 AM, Larroy, Pedro <
        > pllar...@amazon.de>
        > > > > > wrote:
        > > > > > > Hi
        > > > > > >
        > > > > > > I would like to integrate our CI system for devices to make 
sure
        > > PRs
        > > > > > build on ARM / android etc. Who has admin rights on the 
repository
        > so
        > > > we
        > > > > > can install the necessary hooks to trigger our builds?
        > > > > > >
        > > > > > >
        > > > > > > Kind regards.
        > > > > > > --
        > > > > > >
        > > > > > > Pedro
        > > > > > >
        > > > > > > On 12/09/17 02:50, "Meghna Baijal" 
<meghnabaijal2...@gmail.com>
        > > > wrote:
        > > > > > >
        > > > > > >     Hi All,
        > > > > > >     We would like to initiate a change in the way the PR 
builds
        > are
        > > > > > being triggered. At the moment, every time a Pull Request is
        > > created, a
        > > > > > build gets triggered on Jenkins. Additional builds also get
        > triggered
        > > > due
        > > > > > to changes to the same PR.
        > > > > > >     Too many PR builds leads to resource starvation and 
very long
        > > > > queues
        > > > > > and long build times. Hence we would like to add some checks 
where
        > a
        > > > > human
        > > > > > reviewer manually marks it to something like “ok to build” 
before a
        > > PR
        > > > > > build is triggered.
        > > > > > >
        > > > > > >     Do you think this approach would be helpful and we 
should
        > move
        > > > > > forward with it?
        > > > > > >
        > > > > > >     Thanks,
        > > > > > >     Meghna Baijal
        > > > > > >
        > > > > > >
        > > > > > >
        > > > > > >
        > > > > > >
        > > > > > >
        > > > > > > Amazon Development Center Germany GmbH
        > > > > > > Berlin - Dresden - Aachen
        > > > > > > main office: Krausenstr. 38, 10117 Berlin
        > > > > > > Geschaeftsfuehrer: Dr. Ralf Herbrich, Christian Schlaeger
        > > > > > > Ust-ID: DE289237879
        > > > > > > Eingetragen am Amtsgericht Charlottenburg HRB 149173 B
        > > > > >
        > > > >
        > > >
        > >
        >
        
    
    

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