1394982 - Intermittent devtools/client/netmonitor/test/browser_net_truncate.js | Test timed out -

Status: RESOLVED INCOMPLETE

(DevTools :: Netmonitor, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: wkocher [at] mozilla.com

https://treeherder.mozilla.org/logviewer.html#?job_id=126715181&repo=mozilla-inbound

https://queue.taskcluster.net/v1/task/a7hzSYuNSEGdCkqlVmhTgQ/runs/0/artifacts/public/logs/live_backing.log

Comment 1

[Joel Maher ( :jmaher ) (UTC -8)]

this fails quite often on linux64-asan:
https://brasstacks.mozilla.com/orangefactor/index.html?display=Bug&bugid=1394982

I kicked off some retriggers to help understand the frequency and regression range:
https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&filter-searchStr=asan%20dt6&tochange=5419f3e63cae6be9c4c0c426e6ba27c75247d5a9&fromchange=66888a531974251a1c238f366cce4f38846e4ff5&selectedJob=126715181

keep in mind this runs every 5th commit, so the failure rate that orangefactor produces should be much higher compared to the number of pushes.

:Honza, can you take a look at this when you have time in the next couple weeks?  Maybe just to get it in front of the right person if you are not the right person.

Comment 2

[Intermittent Failures Robot]

33 failures in 939 pushes (0.035 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 15
* mozilla-inbound: 9
* try: 7
* mozilla-central: 2

Platform breakdown:
* linux64: 33

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1394982&startday=2017-08-28&endday=2017-09-03&tree=all

Comment 3

[Intermittent Failures Robot]

41 failures in 924 pushes (0.044 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* mozilla-inbound: 16
* autoland: 12
* try: 7
* mozilla-central: 6

Platform breakdown:
* linux64: 41

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1394982&startday=2017-09-04&endday=2017-09-10&tree=all

Comment 4

[Intermittent Failures Robot]

23 failures in 1032 pushes (0.022 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* mozilla-inbound: 9
* autoland: 8
* mozilla-central: 4
* try: 2

Platform breakdown:
* linux64: 23

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1394982&startday=2017-09-11&endday=2017-09-17&tree=all

Comment 5

[Jan Honza Odvarko [:Honza] (always need-info? me)]

I tried to reproduce this locally on Win10, OSX, Ubuntu 64 bit, but no luck
@Ricky: since you implemented that test, do you know why it fails?

Honza

Comment 6

[Intermittent Failures Robot]

3 failures in 943 pushes (0.003 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* autoland: 2
* mozilla-inbound: 1

Platform breakdown:
* linux64: 3

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1394982&startday=2017-09-18&endday=2017-09-24&tree=all

Comment 7

[Ricky Chien [:rickychien] (inactive)]

No idea. I cannot reproduce it as well :(

However, the latest failure rate has reduced from >2% to 0.3% according to comment 6.

Possible root cause might be due to waitUntil() at http://searchfox.org/mozilla-central/source/devtools/client/netmonitor/test/browser_net_truncate.js#27,29.

Both waitUntil() calls are essential to wait for element changes, it's definitely reasonable and the test cause was stable at the beginning, but it's started triggering intermittent since 26 days ago. It would be really hard to figure out the root cause without reproducing the real problem locally. Do you have any idea what recent change of netmonitor might cause this intermittent?

Comment 8

[Firefox Bug Husbandry Bot]

https://wiki.mozilla.org/Bugmasters#Intermittent_Test_Failure_Cleanup

Comment 9

[Intermittent Failures Robot]

1 failures in 744 pushes (0.001 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* autoland: 1

Platform breakdown:
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1394982&startday=2017-11-20&endday=2017-11-26&tree=all