Enabling automated back-filling on mozilla-inbound for few hours

tl;dr; we're going to enable automated back-filling tomorrow Tuesday for
few hours on mozilla-inbound.

We were aiming for Monday but pushed it to Tuesday to help publicize this more.

If on Wednesday there are no fall-outs we will leave it running for m-i for a week before enabling it on other places.

Posted on various mailing lists including mozilla.dev.tree-management.

> Hello all,
>
> We are planning to turn on a service that automatically backfills
> failed test jobs on m-i. If there are no concerns, we would like to
> turn this on experimentally for a couple of hours on [Tuesday]. We
> hope this will make it easier to identify which revision broke a
> test. Suggestions are welcome.
>
> The backfilling works like this: - It triggers the job that failed
> one extra time - Then it looks for a successful run of the job on the
> previous 5 revisions. If a good run is found, it triggers the job
> only on revisions up to this good run. If not, it triggers the job on
> every one of the previous 5 revisions. Previous jobs will be
> triggered one time.
>
> The tracking bug is:
> https://bugzilla.mozilla.org/show_bug.cgi?id=1180732
>
> Best, Alice

--
Zambrano Gasparnian, Armen
Automation & Tools Engineer
http://armenzg.blogspot.ca

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This work by Zambrano Gasparnian, Armen is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

Few mozci releases + reduced memory usage

While I was away adusca released few releases of mozci.

From the latest release I want to highlight that we're replacing the standard json library for ijson since it solves some memory leak issues we were facing for pulse_actions (bug 1186232).

This was important to fix since our Heroku instance for pulse_actions has an upper limit of 1GB of RAM.

Here are the release notes and the highlights of them:

• 0.9.0 - Re-factored and cleaned-up part of the modules to help external consumers
• 0.10.0:
• --existing-only flag prevents triggering builds that are needed to trigger test jobs
• Support for pulse_actions functionality
• 0.10.1 - Fixed KeyError when querying for the request_id
• 0.11.0 - Added support for using ijson to load information, which decreases our memory usage

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This work by Zambrano Gasparnian, Armen is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

mozci 0.8.2 - Allow using TreeHerder as a query source

In this release we have added an experimental feature where you can use Treeherder as your source for jobs' information instead of using BuildApi/Buildjson.

My apologies as this should have been a minor release (0.9.0) instead of a security release (0.8.2).

Contributors

Thanks to @adusca @vaibhavmagarwal and @chmanchester for their contributions.
Our latest new contributor is @priyanklodha - thank you!

How to update

Run "pip install -U mozci" to update

Major highlights

• Added --query-source option to get data from Treeherder or Buildapi
• Improved usage of OOP to allow for different data sources seamlessly

Minor improvements

• Better documentation of --times
• Cleaning up old builds-*.js files
• Enforced line character limit

All changes

You can see all changes in here:
0.8.1...0.8.2

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This work by Zambrano Gasparnian, Armen is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.