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Sometimes builds and tests need to be retriggered. For some classes of automation/infrastructure failures, this happens automatically and the job is marked in the [https://treeherder.mozilla.org/userguide.html Treeherder UI] as dark blue. For other cases, or if you're doing investigative work e.g. testing for an intermittent failure, you'll need to retrigger the job manually.
'''Retriggering''' a job will cause the certain test to be run again.
= Manual retriggers =
* Select a job result in Treeherder and click on it.
* This will display a results pane in the left bottom corner with information like Job, Machine, Task, etc.
* To retrigger this job/test, click on the '''circular arrow ''' with the ''mouseover text '' of ''"Repeat the selected job" '' at the top of the results pane and the job will be retriggered. You can accomplish the same thing by simply pressing '''"r" ''' in the results pane when you are logged in to Treeherder.[[File:Retrigger ll.jpg|400px|center]]*If you want to manually retrigger '''multiple jobs''', you can '''add''' them to the '''pinboard''' and click on '''retrigger all''':[[File:Rt all.jpg|400px|center]] = Backfills = '''Backfilling''' runs the job on the ''previous pushes'' (at the moment: 5) where it often didn’t run (regarded as not necessary or to save resources).To backfill, you '''select a job''' and from the panel you click on the '''“...”''' next to the retrigger button, and choose the '''first option''': [[File:Backfill.jpg|center]]This comes in handy when you want to determine from which push a certain failure has started (ex: for backouts).<br />If you want to backfill on '''''a certain number of pushes''''', click on '''“...”''' and then on '''Custom Action''':[[File:Custom action.jpg|400px|center]]*Choose backfill and change the '''depth''' to your number of choice:[[File:Backfill details.jpg|500px|center]]*And trigger.
= Retriggering PGO Builds =
