bugzilla-daemon | 23 Apr 10:57 2013
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[Bug 47534] New: Converting to PNG...GS exited with status: 9

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

       Web browser: ---
            Bug ID: 47534
           Summary: Converting to PNG...GS exited with status: 9
           Product: MediaWiki extensions
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: Unprioritized
         Component: Score
          Assignee: wikibugs-l <at> lists.wikimedia.org
          Reporter: grin <at> grin.hu
    Classification: Unclassified
   Mobile Platform: ---

https://hu.wikipedia.org/wiki/Szerkeszt%C5%91:Grin/lilypond

(First one may be me, but the ghostscript error cannot be circumvented.)

Processing `.../file.ly'
Parsing...
.../file.ly:14:0: error: syntax error, unexpected \header

\header {
.../file.ly:34:24: error: syntax error, unexpected '}'

                        }Interpreting music... [8]
(Continue reading)

bugzilla-daemon | 23 Apr 10:57 2013
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[Bug 47534] Converting to PNG...GS exited with status: 9

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #1 from Peter Gervai (grin) <grin <at> grin.hu> ---
Possibly should be reassigned to wikimedia admins... your reassign skills are
appreciated. ;)

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bugzilla-daemon | 23 Apr 11:22 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Andre Klapper <aklapper <at> wikimedia.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|Unprioritized               |High
            Summary|Converting to PNG...GS      |"Unable to compile LilyPond
                   |exited with status: 9       |input file: Converting to
                   |                            |PNG...GS exited with
                   |                            |status: 9"

--- Comment #2 from Andre Klapper <aklapper <at> wikimedia.org> ---
Is the "c,4" a typo?

== Example ==
<score>
\header {
  title =       "Something"
  enteredby =   "grin"
}
\version "2.14.2"
\relative c' { 
c e c e g2 g2  
c,4 e c e g2 g2   
c4 b a g f2 a2 
g4 f e d c2 c2
}
</score>

(Continue reading)

bugzilla-daemon | 23 Apr 14:34 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #3 from Peter Gervai (grin) <grin <at> grin.hu> ---
Not that I know (which doesn't tell really much :-)). I am 5 minutes deep in
Lilypond's manual and it seems like a valid "octave down" order.

Actually the error is the same for <score>{ c }</score>.

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bugzilla-daemon | 23 Apr 16:06 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Sam Reed (reedy) <sam <at> reedyboy.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |beau <at> adres.pl

--- Comment #4 from Sam Reed (reedy) <sam <at> reedyboy.net> ---
The latter errors are somewhat usless as the earlier step hasn't finished.

(In reply to comment #3)
> Actually the error is the same for <score>{ c }</score>.

This minimal test case works for me:
https://en.wikipedia.org/w/index.php?title=User:Reedy/score&oldid=551798236

Using your full version I get "No MIDI file generated despite being requested.
If you are working in raw LilyPond mode, make sure to provide a proper \midi
block."

Andre: I notice this component doesn't have an assignee or even a CC. Think we
might want to try poking people outside the "WMF group" (ie not Tim/Jan) and
get some CC's added. Have CC' Beau as he has done some work to the extension

https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/extensions/Score.git;a=search;s=grafzahl;st=author
doesn't have a useable email address

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(Continue reading)

bugzilla-daemon | 23 Apr 19:04 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #5 from Peter Gervai (grin) <grin <at> grin.hu> ---
Holy cow. Yeah, { c } works, { d } doesn't, and neither does { c c }. Beats me.

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bugzilla-daemon | 23 Apr 21:41 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #6 from Peter Gervai (grin) <grin <at> grin.hu> ---
Oh. I guess I figured it out.

{ c } works. 
{ c  } doesn't work.

{ c d } works, while { c  d } doesn't.

Seems somehow it's extremely sensitive to punctuation and whitespaces. Lilypond
itself doesn't seem to care, the extension somehow does.

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bugzilla-daemon | 23 Apr 21:57 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #7 from Peter Gervai (grin) <grin <at> grin.hu> ---
If I try something on huwp it usually fails. If I copy it verbatim to enwp it
works. When I try again preview on huwp it works there too.

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bugzilla-daemon | 23 Apr 22:12 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #8 from Sam Reed (reedy) <sam <at> reedyboy.net> ---
Created attachment 12162
  --> https://bugzilla.wikimedia.org/attachment.cgi?id=12162&action=edit
https://hu.wikipedia.org/w/index.php?title=Szerkeszt%C5%91:Grin/lilypond&oldid=13505682

Testing all the simple examples (ie the extra spaces) work fine locally on my
dev wiki. Likely slightly newer lilypond related dependencies

So does
https://hu.wikipedia.org/w/index.php?title=Szerkeszt%C5%91:Grin/lilypond&oldid=13505682

See attached PNG. There's a lot of whitespace for some reason, but that's a
different issue

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bugzilla-daemon | 23 Apr 22:14 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #9 from Peter Gervai (grin) <grin <at> grin.hu> ---
 <at> reedy: I have created a large one on huwp failing, copied to your page,
working, copied back to huwp, working (probably came from the cache, it was
immediate), I have made a trivial change, failing, copied to enwp, working.

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bugzilla-daemon | 23 Apr 22:14 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #10 from Peter Gervai (grin) <grin <at> grin.hu> ---
Try change my page on huwp.

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bugzilla-daemon | 23 Apr 22:16 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #11 from Sam Reed (reedy) <sam <at> reedyboy.net> ---
All wikis run from the same set of apaches, so it's weird it apparently works
on enwiki but not huwiki

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bugzilla-daemon | 23 Apr 23:38 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #12 from Peter Gervai (grin) <grin <at> grin.hu> ---
REEDY ARE THE BUGFIXERER!

<Reedy> enwiki IS running different code to huwiki
<Reedy> as enwiki is on 1.22wmf2 (note, I changed it yesterday)
<Reedy> try it on huwiki *now*
<grin> works

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bugzilla-daemon | 23 Apr 23:38 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Peter Gervai (grin) <grin <at> grin.hu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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bugzilla-daemon | 25 Apr 04:59 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Liangent <liangent <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |liangent <at> gmail.com
         Resolution|FIXED                       |---

--- Comment #13 from Liangent <liangent <at> gmail.com> ---
This is happening again:
https://zh.wikipedia.org/w/index.php?title=User:Shizhao/score&oldid=26336897&uselang=en

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bugzilla-daemon | 25 Apr 14:18 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

picander78 <at> yahoo.it changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |picander78 <at> yahoo.it

--- Comment #14 from picander78 <at> yahoo.it ---
this code works

<score>
\new PianoStaff <<
   % RH Staff
   \new Staff {
      \clef treble
      \key g \major
      \time 3/4
      \relative c'''{
         g4 g( a8.\mordent) b16 |
         a8 \appoggiatura g fis \appoggiatura e d2 |
         g,4\mordent g4.\downprall fis16 g|
      }
   }
   \new Staff {
     \clef bass
     \key g \major
      \time 3/4
        g4 g g
        g g g
(Continue reading)

bugzilla-daemon | 11 May 02:39 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bawolff+wn <at> gmail.com

--- Comment #15 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
As an aside, this error (comment 14) is not reproducible for me locally using
the score extension. It is producible on enwiki. I also had some weird stuff
happening where some things seemed to not render on ukwiki, and then I tried it
on enwiki, and then it worked everywhere (presumably due to being a cache hit).
But that only happened with some examples I tried, not all, so maybe
coincidence
----

btw, I believe ghostscript error code 9 is for invalid file access.

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bugzilla-daemon | 11 May 11:16 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ankry <at> mif.pg.gda.pl

--- Comment #16 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
*** Bug 47826 has been marked as a duplicate of this bug. ***

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bugzilla-daemon | 11 May 11:29 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #17 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
As a note, when I hit memory limits on my local install, the error message
looks quite different. I also had to significantly decrease the memory limit
before the example file hit it. OTOH my local install isn't using cgroups...

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bugzilla-daemon | 11 May 13:02 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |buxul <at> web.de

--- Comment #18 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
*** Bug 47589 has been marked as a duplicate of this bug. ***

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bugzilla-daemon | 12 May 04:45 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #19 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
>btw, I believe ghostscript error code 9 is for invalid file access.

Actually nevermind, in guile, if you kill a subprocess executed with the
(system) command, the return status is the signal that killed it, so in this
case SIGKILL (signal 9), which is what would happen if ghostscript exceeded
resource limits when using cgroups. (Internally ghostscript also uses 9 to mean
invalid file access I believe, but I don't think it actually uses that as a
return code)

Which brings up the question of why is it only gs that is exceeding resource
limits. I would expect it to be other parts of the rendering process as well.
And specifically which limit is being exceeded. Is ghostscript really that
expensive? [I don't have cgroups set up locally, but using ulimits, the process
completes with much less memory then the limit is set to on wmf wikis]

To further add mystery, on test.wikipedia.org, this issue does not happen. I
occasionally got a return status from lilypond of 137 (128 + signal number 9
for bash signalling that it was killed, again presumably due to cgroups). In
general though rendering succeeds. Which is odd, since even though
test.wikipedia.org is not the same as a normal cluster wiki, afaik it has
resource limits configured in the same way [Unless it is perhaps configured as
an image scalar?]

[As an aside this provides a very poor workaround, since once you get something
rendered on test, it gets cached, and can be used on the other wikis]

-----
(Continue reading)

bugzilla-daemon | 12 May 05:38 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Rob Lanphier <robla <at> wikimedia.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |robla <at> wikimedia.org
           Assignee|wikibugs-l <at> lists.wikimedia. |jgerber <at> wikimedia.org
                   |org                         |

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bugzilla-daemon | 15 May 18:50 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Alex Monk (Krenair) <krenair <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugzilla.wikimedia.
                   |                            |org/show_bug.cgi?id=48465

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bugzilla-daemon | 16 Jun 16:47 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |morganation1 <at> gmail.com

--- Comment #20 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
*** Bug 48465 has been marked as a duplicate of this bug. ***

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bugzilla-daemon | 8 Jul 22:54 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aklapper <at> wikimedia.org

--- Comment #21 from Bawolff (Brian Wolff) <bawolff+wn <at> gmail.com> ---
*** Bug 48779 has been marked as a duplicate of this bug. ***

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bugzilla-daemon | 8 Jul 23:36 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #22 from Greg Grossmeier <greg <at> wikimedia.org> ---
For those following along here:

Could someone provide some examples (more than a couple) of reasonably complex
(but not unrealistically so) scores that are causing this out of memory issue?
This would be helpful for us (WMF) to determine what kind of limit is
reasonable. There will still be technical limits on the server side, so it'll
be a balancing act, but for now let's see what kind of things are realistic.

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bugzilla-daemon | 9 Jul 00:05 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

--- Comment #23 from Andrzej Krzysztofowicz <ankry <at> mif.pg.gda.pl> ---
(In reply to comment #22)
> For those following along here:
> 
> Could someone provide some examples (more than a couple) of reasonably
> complex
> (but not unrealistically so) scores that are causing this out of memory
> issue?
> This would be helpful for us (WMF) to determine what kind of limit is
> reasonable. There will still be technical limits on the server side, so it'll
> be a balancing act, but for now let's see what kind of things are realistic.

Two examples from plwikisource:

https://pl.wikisource.org/wiki/Kategoria:Pages_with_score_rendering_errors

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bugzilla-daemon | 9 Jul 00:30 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Tim Starling <tstarling <at> wikimedia.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tstarling <at> wikimedia.org

--- Comment #24 from Tim Starling <tstarling <at> wikimedia.org> ---
(In reply to comment #23)
> Two examples from plwikisource:
> 
> https://pl.wikisource.org/wiki/Kategoria:Pages_with_score_rendering_errors

I rendered this one locally:

<https://pl.wikisource.org/wiki/Dyskusja_strony:PL_Tarnowski-Szkice_helweckie_i_Talia.djvu/099>

The image size is 487 x 1401. Lilypond specifies the "png16m" device to
GhostScript, which implies 6 bytes per pixel, which is only 4MB for the whole
surface. Perhaps the startup overhead of GhostScript and Lilypond puts it on
the edge of an OOM, so that you only need a tiny extra image surface to push it
over.

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(Continue reading)

bugzilla-daemon | 2 Aug 10:36 2013
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[Bug 47534] "Unable to compile LilyPond input file: Converting to PNG...GS exited with status: 9"

https://bugzilla.wikimedia.org/show_bug.cgi?id=47534

Jan Gerber <jgerber <at> wikimedia.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #25 from Jan Gerber <jgerber <at> wikimedia.org> ---
https://gerrit.wikimedia.org/r/#/c/73720/ brings down the memory use enough to
render the failing scores here.

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