Bug 124845 – Tester bots triggered incorrectly

• Status: NEW
• Component: New Bugs

[Csaba Osztrogonác]

It seems something bad happens during triggering the Mac Debug tester bots.

- http://build.webkit.org/builders/Apple%20Mavericks%20Debug%20%28Build%29/builds/1279 built r159749
- http://build.webkit.org/builders/Apple%20Mavericks%20Debug%20%28Build%29/builds/1280 built r159750

Both of them triggered the tester bot during it was running tests for an earlier revision.

And here is the result:
http://build.webkit.org/builders/Apple%20Mavericks%20Debug%20WK1%20%28Tests%29/builds/748
Revision	159749
Got Revision	159749


All Changes:
 - Change #39546 - r159750
 - Change #39545 - r159749

It seems the tester ran the oldest one, not the newest one. Similar results on ML debug bots.

[Csaba Osztrogonác]

I have a feeling that the bug is around http://trac.webkit.org/changeset/117508 .

[Csaba Osztrogonác]

The bug is still valid on Apple Windows bots too:
https://build.webkit.org/builders/Apple%20Win%207%20Release%20%28Tests%29/builds/47633

Revision	174101
Got Revision	174101


All Changes:
 - Change #52898
   Revision 174102
 - Change #52897
   Revision 174101

The tester bot should have picked 174102 instead of 174101.

[Csaba Osztrogonác]

this bug is still valid:

Let's see two builders: building r181145 finished before r181143

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20%28Build%29/builds/13446
r181143
Start	Fri Mar 6 01:23:52 2015
End	Fri Mar 6 01:57:23 2015
Elapsed	33 mins, 31 secs

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20%28Build%29/builds/13447
r181145
Start	Fri Mar 6 01:24:24 2015
End	Fri Mar 6 01:40:29 2015
Elapsed	16 mins, 5 secs

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20%28Build%29/builds/13448
r181147
Start	Fri Mar 6 01:40:29 2015
End	Fri Mar 6 01:49:11 2015
Elapsed	8 mins, 41 secs

And then the tester bot ran the tests in the same 
order as the builder finished:

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20WK1%20%28Tests%29/builds/12735
r181145
Start	Fri Mar 6 01:40:30 2015
End	Fri Mar 6 01:53:19 2015
Elapsed	12 mins, 49 secs

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20WK1%20%28Tests%29/builds/12737
r181143
Start	Fri Mar 6 01:57:23 2015
End	Fri Mar 6 02:10:39 2015
Elapsed	13 mins, 15 secs

https://build.webkit.org/builders/Apple%20Mavericks%20Release%20WK1%20%28Tests%29/builds/12738
181149
Start	Fri Mar 6 02:47:22 2015
End	Fri Mar 6 03:00:06 2015
Elapsed	12 mins, 43 secs

[Csaba Osztrogonác]

(In reply to comment #3)
> this bug is still valid:
> 
> Let's see two builders: building r181145 finished before r181143
...

No, it is a different bug. I don't know how can be it be fixed.
The tester don't have any chance to check if a builder will
finish with an older revision than a newer revision.

[Alexey Proskuryakov]

The tester can't know that, but it seems like buildbot master could be smarter about such things.

I'm not quite sure what this bug is tracking at this point though, could you rephrase it?