1233932 - improve error reporting for b2g_bumper stamp failures

Status: RESOLVED FIXED

(Release Engineering :: General, defect)

Description

[hwine]

I spent 1/2 the time finding the config with problems for bug 1233351 - we can do better.

b2g_bumper/files/run_b2g_bumper.sh

Comment 1

[hwine]

Sigh. Too quick to enter.

Two issues:
 1) runner script doesn't say which branch failed. That's in run_b2g_bumper.sh
 2) log file just shows stack trace:
    213 20:50:19    FATAL - Uncaught exception: Traceback (most recent call last):
    214 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/mozharness/base/script.py", line 1693, in run
    215 20:50:19    FATAL -     self.run_action(action)
    216 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/mozharness/base/script.py", line 1635, in run_action
    217 20:50:19    FATAL -     self._possibly_run_method(method_name, error_if_missing=True)
    218 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/mozharness/base/script.py", line 1576, in _possibly_run_method
    219 20:50:19    FATAL -     return getattr(self, method_name)()
    220 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/scripts/b2g_bumper.py", line 595, in push_loop
    221 20:50:19    FATAL -     self.massage_manifests()
    222 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/scripts/b2g_bumper.py", line 508, in massage_manifests
    223 20:50:19    FATAL -     self.map_remotes(manifest)
    224 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/scripts/b2g_bumper.py", line 146, in map_remotes
    225 20:50:19    FATAL -     repo_manifest.rewrite_remotes(manifest, mapping_func)
    226 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/mozharness/mozilla/repo_manifest.py", line 83, in rewrite_remotes
    227 20:50:19    FATAL -     m = mapping_func(r)
    228 20:50:19    FATAL -   File "/builds/b2g_bumper/mozharness/scripts/b2g_bumper.py", line 144, in mapping_func
    229 20:50:19    FATAL -     self._remote_mappings[m.getAttribute('fetch')] = orig_url
    230 20:50:19    FATAL - AttributeError: 'NoneType' object has no attribute 'getAttribute'

There's only one cause for that error - a remote can't be found in the
config. Let's make that more explicit.

Comment 2

[hwine]

Attachment: run.patch

Improve time to resolution by not discarding information about _which_ branch(es) are having problems.

Comment 3

[hwine]

Attachment: b2g_bumper.patch

Avoid the hard-to-decipher-late-on-a-Friday-night stack trace in comment 1, and give a clue as to where the problem is.

Comment 4

[hwine]

I think these are safe to land by anyone, as any side effects should be quickly apparent.

However, ni myself to land after PTO just in case.

Comment 5

[hwine]

https://hg.mozilla.org/build/mozharness/rev/6b6b2c30e0aea412972b0eed784198d6771e1b99
bug 1233932 - improve b2g_bumper error messages; r=jlund

Comment 6

[hwine]

https://hg.mozilla.org/build/puppet/rev/2ed902cd20a494ef275220b4e86c91e0a116c59a
bug 1233932 - improve b2g_bumper error messages; r=jlund

Comment 7

[hwine]

Comment on attachment 8700276 [details] [diff] [review]
b2g_bumper.patch

in production with
  https://hg.mozilla.org/build/mozharness/rev/5792bcee8f5f

Comment 8

[hwine]

Comment on attachment 8700275 [details] [diff] [review]
run.patch

In production with:
  https://hg.mozilla.org/build/puppet/rev/ff7fe1d132ae