[Koha] Z39.50 - internal server error

[Jonathan Druart]

Hi Radek,

Which version of Koha are you running on? What are you local changes? Did
you try without?

Cheers,
Jonathan

On Mon, 14 Nov 2016 at 08:49 <radek.siman at centrum.cz> wrote:

> Hi,
>
>  sometimes we are facing very annoying problem concerning Z39.50
> searching, bacause all attempt to search records fail with a "white page of
> death" saying only "Internal server error". It is somehow connected to
> plack, but we cannot find a good solution.
>
>  Symptoms:
> # tail plack-error.log -n 5
> Undefined subroutine &C4::Breeding::GetZ3950BatchId called at
> /usr/share/koha/lib/C4/Breeding.pm line 279.
> Undefined subroutine &C4::Breeding::GetZ3950BatchId called at
> /usr/share/koha/lib/C4/Breeding.pm line 279.
> Undefined subroutine &C4::Breeding::GetZ3950BatchId called at
> /usr/share/koha/lib/C4/Breeding.pm line 279.
> Undefined subroutine &C4::Breeding::GetZ3950BatchId called at
> /usr/share/koha/lib/C4/Breeding.pm line 279.
> Undefined subroutine &C4::Breeding::GetZ3950BatchId called at
> /usr/share/koha/lib/C4/Breeding.pm line 279.
> Solution A:
> # koha-plack --restart
> When we restart the plack service, then the searching starts to work again
> for an unpredictable period of time (often several days, sometimes week or
> two).
>
>  Solution B:
> We add a "C4::ImportBatch::" prefix to C4/Breeding.pm at these two lines:
> my $batch_id = GetZ3950BatchId($servhref->{servername});
> my $breedingid = AddBiblioToBatch($batch_id, $seq, $marcrecord, 'UTF-8',
> 0, 0);
> This solution works well except the fact, that prefixing is not probably
> the best idea because the procedures SHOULD be already imported. In fact,
> they aren't. Sometimes.
>
>  We think it could be caused by our local changes of code. We are not
> happy with it, but is it possible that the local changes of code don't work
> well with plack module? What should be kept in mind to avoid (probably?)
> incorrect imports with "use" command?
>
> Thanks a lot!
> Radek
>
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