Sheriff Highlights and Summary in February 2017

Lawrence Mandel lmandel at mozilla.com
Thu Mar 9 22:32:41 UTC 2017


I don't know that it's useful to modify your report if you're confident in
your estimates below. Thanks for the additional information.

Lawrence

On Tue, Mar 7, 2017 at 4:03 AM, Carsten Book <cbook at mozilla.com> wrote:

> Hi Lawrence,
>
> most (i would say 95 %) of the backouts are for Code issues - this include
> bustages and test failures.
>
> From this Code Issues i would guess its about 2/3 for breaking tests and
> 1/3 Build Bustages.
>
> The other backout reasons are merge conflicts / backout requests for
> changes causes new regressions out of our test suites / backout requests
> from developers etc -
>
> In February the backout rate was (excluding the servo merge with 8315
> changesets from the 13242) = 297 in 4927 changesets = ~ 6 %
> In January the backout rate = 302 backouts in 4121 changesets = 7 %
>
> We had a much higher backout rate in the past i think - so it stabilized
> now with this 6-7 % backout rate in the last months,
>
> If you think its useful, i can provide for the next monthly report a more
> detailed analysis like x % =  backouts because builds bustages, y %=
> backouts for test failures etc .
>
> Cheers,
>  -Tomcat
>
>
> On Mon, Mar 6, 2017 at 11:13 PM, Lawrence Mandel <lmandel at mozilla.com>
> wrote:
>
>> Hi Tomcat,
>>
>> Do you have any more details about the reasons why the 297 changesets
>> needed to be backed out?
>>
>> Thanks,
>>
>> Lawrence
>>
>> On Wed, Mar 1, 2017 at 6:05 AM, Carsten Book <cbook at mozilla.com> wrote:
>>
>>> Hi,
>>>
>>> We will be more active in 2017 and inform more about whats happening in
>>> Sheriffing and since its already March.... :)
>>>
>>> In February we had about 13242 changesets landed on mozilla-central
>>> monitored by Sheriffs.
>>>
>>> (The high number of changes is because of the merge from servo to
>>> mozilla-central with about 8315 changesets).
>>>
>>> 297 changesets were backed out in February.
>>>
>>> Beside this Sheriffs took park in doing uplifts and checkin-needed bugs.
>>>
>>> The Current Orangefactor is 10.43 (7250 test failures failures in 695
>>> pushes in the last 7 days).
>>> You can find the list of top Intermittent failure bugs here
>>> https://brasstacks.mozilla.com/orangefactor/
>>>
>>> You can find more statistics here: https://futurama.theautomatedt
>>> ester.co.uk/
>>>
>>> A big thanks to the Team especially our Community Sheriffs for handling
>>> the new Tier 2 Stylo Build on integration trees  and mozilla-central  and
>>> the teamwork with the Developers!
>>>
>>> If you want also to be a Community Sheriffs, as part of more blogging
>>> about Sheriffing i published a blog post about it :
>>> https://blog.mozilla.org/tomcat/2017/02/27/community-sheriffs/
>>>
>>> Let us know when you have any Question or Feedback about Sheriffing.
>>>
>>> Cheers,
>>>  -Tomcat
>>>
>>
>>
>
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