An add-up: given you have the write access to your own fork, you would be able 
to cancel/re-run the Travis CI jobs which are running against your own fork.


> On 22 Nov 2018, at 12:48 AM, Deng Xiaodong <> wrote:
> Hi,
> I believe only the folks who have write access to the codebase, i.e. the 
> committers, can stop/cancel/re-run the Travis CI jobs.
> What the contributors can do is to make commits to the branch in their own 
> fork & ensure it’s working/passing tests as expected, before they create the 
> Pull Request.
> XD
>> On 22 Nov 2018, at 12:41 AM, Sai Phanindhra <> wrote:
>> Deng Xiaodong thanks for helping us with this. I hope this will help us in
>> developing and testing fast. I would like to ask is there a provision to
>> cancel our own builds in travis. I can see sometimes contributors are
>> pushing multiple commits in small intervals of time leading to multiple
>> builds. If we can kill/cancel old builds and let only the latest build run
>> it would be better use of resources.
>> On Wed, 21 Nov 2018 at 21:56, Deng Xiaodong <> wrote:
>>> Hi folks,
>>> I noticed that testing is somehow a problem for some folks who would like
>>> to contribute (either have trouble setting local testing env, or misused
>>> Pull Request to test). Actually because Airflow is using Travis CI for unit
>>> testing, running testing for any of your change/commit is very very easy.
>>> ****Steps****
>>> 1. Go to, click “Sign in with GitHub”. If you
>>> haven’t done this before, possibly it will ask you to “Authorize Travis CI
>>> for Open Source”.
>>> 2. After this is done, you may be redirected to
>>> Then you will see a list of
>>> your public repositories. Let’s assume you have already forked Airflow,
>>> then just toggle it on.
>>> 3. Everything is good to go! From now on, if you make any change/commit to
>>> your own fork of Airflow, the Travis CI test will be triggered
>>> (Travis-related files is already included in the Airflow codebase).
>>> ****Why to do this****
>>> - You don’t have to set up local testing env, or misuse Pull Request to
>>> test your code change.
>>> - Travis CI is free for Open Source project (public repo), but it only
>>> allows 5 concurrent tests. On the other hand, Apache is using
>>> paid-subscription (possibly for unlimited concurrent tests). So mis-using
>>> Pull Requests to test your change/commit will result in a slightly bigger
>>> bill that ASF receives.
>>> Hope this is somehow helpful for folks who would like to contribute.
>>> XD
>> -- 
>> Sai Phanindhra,
>> Ph: +91 9043258999

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