Sheriff Highlights and Summary in February 2017

Carsten Book cbook at mozilla.com
Tue Mar 7 09:03:27 UTC 2017


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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