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Status: Duplicate
Merged: issue 797849
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Closed: Dec 29
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OS: Chrome
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bvt-arc times out across boards
Project Member Reported by sheriff-...@appspot.gserviceaccount.com, Dec 19 Back to list
Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of bmgordon@google.com

The bvt-arc suite is timing out on quite a few boards.  General symptoms:

* There is a 15-60 minute gap between scheduling the tests and the first test starting.
* Once the tests start, they seem to run normally.  None fail.
* The suite is aborted after a timeout.  How far it gets before the timeout seems to be correlated with the length of the scheduling delay.

Examples:
- cave-release:  https://luci-milo.appspot.com/buildbot/chromeos/cave-release/1775
- celes-release: https://luci-milo.appspot.com/buildbot/chromeos/celes-release/1772
- lulu-release: https://luci-milo.appspot.com/buildbot/chromeos/lulu-release/1776
- poppy-release: https://luci-milo.appspot.com/buildbot/chromeos/poppy-release/1029
- relm-release: https://luci-milo.appspot.com/buildbot/chromeos/relm-release/1775
- sentry-release: https://luci-milo.appspot.com/buildbot/chromeos/sentry-release/1773
- ultima-release: https://luci-milo.appspot.com/buildbot/chromeos/ultima-release/1777


 
Cc: martinroth@chromium.org jrbarnette@chromium.org
Components: Infra>Client>ChromeOS
Another one today:

https://luci-milo.appspot.com/buildbot/chromeos/ultima-release/1780

Timeline:

4:46: 38 tests scheduled
5:15: First test starts running
6:21: 34th test finishes successfully
7:48: Suite is aborted because it times out.

There are no log messages between 6:26 and 7:48.  This sounds at least superficially similar to  crbug.com/796439 .


A bunch more today:

https://luci-milo.appspot.com/buildbot/chromeos/caroline-release/1325
https://luci-milo.appspot.com/buildbot/chromeos/cave-release/1785
https://luci-milo.appspot.com/buildbot/chromeos/relm-release/1785
https://luci-milo.appspot.com/buildbot/chromeos/setzer-release/1778
https://luci-milo.appspot.com/buildbot/chromeos/squawks-release/2067
https://luci-milo.appspot.com/buildbot/chromeos/terra-release/1787
https://luci-milo.appspot.com/buildbot/chromeos/wizpig-release/1791

There may be two separate bugs here, because the delay happens in two places:

1. A long delay between scheduling all the suites and starting the first test.  These usually run until the timeout once they start.

2. Some of the tests run fairly soon after scheduling, and then there's a long delay with no output before the timeout.
Labels: OS-Chrome
Mergedinto: 797849
Status: Duplicate
By mistake we started working on this on  issue 797849 .
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