867029 - Port windows clobberer fixes to purge_builds.py (unable to free enough space)

Status: RESOLVED FIXED

(Release Engineering :: General, defect, P2)

Description

[Nick Thomas [:nthomas] (UTC+12)]

Reported on IRC (y u no file bug ?):
<philor>: mmm, w64-ix-slave19 has so many .deleteme directories built up it can't free enough space, we should probably reimage it and clear out the tmpdir in the process

Turns out that slave as 24 of those directories, and while there's no way to get the size of those in a timely way I bet they are consuming a very healthy proportion of the disk of the 150G, especially if we can't find ~10G by deleting everything else.

If I modify the try/except at http://hg.mozilla.org/build/tools/file/75d10bb9bbbd/buildfarm/maintenance/purge_builds.py#l121 the error is

WindowsError: [Error 3] The system cannot find the path specified: '..\\m-beta-w32-0000000000000000000.deleteme\\build\\obj-firefox\\dist\\test-package-stage\\mochitest\\browser\\browser\\components\\privatebrowsing\\test\\browser\\perwindow\\browser_privatebrowsing_localStorage_before_after_page2.html'

Shortening either the filename or the current dir name to get below 256 char total gets past the exception. ---> We need to port the fix from bug 862017 to get rid the *.deleteme.

Comment 1

[Nick Thomas [:nthomas] (UTC+12)]

Attachment: [tools] port to purge_builds.py

Ports the two patches from bug 860426 over. Tested manually on a win64 slave.

Comment 2

[Nick Thomas [:nthomas] (UTC+12)]

Comment on attachment 743440 [details] [diff] [review]
[tools] port to purge_builds.py

https://hg.mozilla.org/build/tools/rev/278b59532792

Fixed in builds starting after 4:05 PDT.

Comment 3

[Nick Thomas [:nthomas] (UTC+12)]

From a post-landing job on windows:

Deleting ..\ced-w32-0000000000000000000000.deleteme
Deleting ..\ced-w32-0000000000000000000000
Deleting ..\m-b18H1-w32-d-0000000000000000.deleteme
Deleting ..\m-b18H1-w32-000000000000000000.deleteme
Deleting ..\graphics-w32-00000000000000000.deleteme
Deleting ..\date-w32_g-0000000000000000000.deleteme
Deleting ..\tb-c-cen-w32-d-000000000000000.deleteme
Deleting ..\tb-c-aurora-w32-d-000000000000.deleteme
Deleting ..\tb-c-cen-w64-00000000000000000.deleteme
Deleting ..\m-aurora-w32-00000000000000000.deleteme
45.22 GB of space available