ReleaseEngineering/Preproduction/Masters

At the moment all preproduction masters run on preproduction-master.build.mozilla.org server.

Pre-production system has a "managing" master, which runs quality check of the releng repositories.

At the moment the managing master runs at http://preproduction-master.build.mozilla.org:8710 and the corresponding repository is here.

This master runs the following check for each push:

• sets up a virtual environment and installs all needed modules
• runs test-masters.sh
• runs pylint
• generates a coverage report for buildbotcustom and publishes it at http://preproduction-stage.build.mozilla.org/coverage/buildbotcustom/

There are 5 other types of masters running on the same machine:

• scheduler master
  • polls Firefox hg repositories with reduced poll interval (6h)
  • uses local MySQL database as a backend
• tests scheduler master
• builder master
• tests master
• release master

Once a week the managing master recreates virtual environment for all masters listed above, removes all database entries and restarts the servers.

There is a hourly cronjob which scans twistd.log files for unhandled exceptions and emails them to release@ mailing list.