[Koha-bugs] [Bug 16309] opac-image.pl makes cpu 100%

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16309

Jacek Ablewicz <abl at biblos.pk.edu.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |master
           Severity|enhancement                 |normal
                 CC|                            |abl at biblos.pk.edu.pl

--- Comment #1 from Jacek Ablewicz <abl at biblos.pk.edu.pl> ---
(In reply to Hugo Agud from comment #0)
> We have seen that activating koha local cover in koha 3.22.5 and plack
> disabled, for every search koha launches several opac-image.pl but keeps
> live between 6 and 20 seconds and make cpu crash.
> 
> If plack is enabled, erverything works fine.

opac/opac-image.pl is slower in 3.22 than it was in 3.20 (about 4x slower on
average, since Bug 13967 - it triggers DBIx class loading on
"OPACLocalCoverImages" system preference fetch, i.e. adding 500+ msec to each
opac-image.pl invocation). But it's hard to imagine it can actually cause
server to crash - unless it's some seriously underpowered kind of setup
(virtual machine with only a couple of relatively slow CPU cores assigned)?

Apart from switching to plack - another workaround would be setting up
memcached as a Koha cache system (that works in current master, not sure about
3.22.x branch).

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