Sysadmin Load Reduction: Subversion Infrastructure

Ben Cooksley bcooksley at kde.org
Sun Nov 10 02:03:46 GMT 2019


On Sun, Nov 10, 2019 at 2:13 PM Philippe Cloutier <chealer at gmail.com> wrote:
>
>
> On 09/11/2019 16:07, Ben Cooksley wrote:
> > On Sun, Nov 10, 2019 at 9:32 AM Albert Vaca Cintora
> > <albertvaka at gmail.com> wrote:
> >> On Sat, Nov 9, 2019 at 6:53 PM Ben Cooksley <bcooksley at kde.org> wrote:
> >>> Unfortunately Rosetta does not have the necessary free disk space, as
> >>> the Subversion repository is approximately 80GB these days in size,
> >>> and operating WebSVN requires a full copy of the Subversion repository
> >>> locally in order to operate.
> >> Is this also the case if you run WebSVN next to the SVN server itself
> >> (ie: on the same machine)? If a single repo copy can be shared by
> >> WebSVN and the actual SVN server, that would reduce the storage needs.
> > Running WebSVN on the same machine is not safe for us to do, because
> > certain requests cause WebSVN to generate a substantial amount of
> > system load, and have caused out of memory events on systems running
> > it in the past.
>
> I know nothing about WebSVN internals, but if that's the only issue,
> PHP's memory_limit setting should allow avoiding such as issue:
> https://www.php.net/manual/fr/ini.core.php
> Do realize that this setting only affects a single script's usage though
> - it will avoid one script execution going berserk, but if we really
> want to set an overall WebSVN limit of 4 GB for example, we probably
> need to set memory_limit to - say - 512 MB - but also the max number of
> concurrent requests to 8.

Unfortunately WebSVN is a CGI/Python based bit of software, so the PHP
memory_limit doesn't help us here unfortunately.
(Side note: the software running at websvn.kde.org is actually ViewVC
and has no relation to the software called WebSVN, which is PHP based
- apologies for any confusion there)

>
> I personally used WebSVN for translation issues a few times. I wouldn't
> have helped as much without it. I would find it unfortunate if
> translations could no longer be viewed from the web. I would consider
> that issue as somewhat strategic, since many start contributing by
> getting involved in translations... and a web access to translation
> helps getting involved in translation.
>
>
> > [...]
> > Regards,
> > Ben
>

Cheers,
Ben

> --
> Philippe Cloutier
> http://www.philippecloutier.com
>


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