We are still having issues ☹ Koha has been unreliable for the past 2 hours. 520 errors and Cloudflare handshake errors.
Lori Ann Thorrat Manager Catalog / Processing Cuyahoga County Public Library Administrative Offices 2111 Snow Road / Parma Ohio 44134-2728 p 216.749.9373 / f 216.749.9445 cuyahogalibrary.org Pronouns: she/her/hers -----Original Message----- From: Koha <[email protected]> On Behalf Of Chris Davis Sent: Monday, June 23, 2025 1:52 PM To: [email protected] Subject: [Possible Spam] Re: [Koha] Slowness & outages Importance: Low Thank you Everyone for sharing with us. Koha for us seems to now be running normally and I hope that stays the status quo. Best, Christopher Davis Technical Services Specialist Lincoln County Library District (541) 264-8141 <tel:5412648141> [email protected] www.lincolncolibrarydist.org <https://www.lincolncolibrarydist.org> Click to view my schedule or book an appointment w/ me <https://calendar.app.google/6Ymx4UrHiTfR6faaA> On 6/23/25 6:42 AM, Coehoorn, Joel wrote: > We have similar issue with misbehaving AI crawlers, especially trying > to crawl the opac_search.pl <http://opac_search.pl> page, which should > be restricted by robots.txt. > > fail2ban was only a partial success or stopgap, and didn't really fix > things. > > What is working MUCH better is setting the apache MaxRequestWorkers > option (or possibly MaxClients on some systems) in the apache.conf > file. I haven't needed to manually intervene with our server for this > issue since setting the option. We still have some outages, but they > are significantly less frequent (maybe one or two every other week) > and the server typically recovers on it's own by the time uptimerobot > detects it and sends the notification to me. Further tuning of the > value could probably eliminate the problem for us entirely. As is > often the case, the best value here will depend on your specific > server, database size, configuration, and load, but 15 can be a nice > starting place. > > *Joel Coehoorn* > Director of Information Technology > *York University* > Office: 402-363-5603 | [email protected] | york.edu <https://york.edu> > > > > On Mon, Jun 23, 2025 at 1:49 AM Wagner, Alexander > <[email protected]> wrote: > > Hi! > > > My library consortium is hosted by ByWater Solutions and during > the last > > seven days, several times Koha has been slow and then there's an > outage > > for thirty to sixty minutes then things are fine for a while, then > > there's more slowness and outage. ByWater is addressing these > issues, > > but I want to know if anyone else's sites or clients are having > issues > > like these? > > I am no exprt on the issue but we see this a lot on our open > access repositories. There we were able to get it under control > for the time being using `fail2ban`. As robots.txt tends to get > ignored especially by the AI (I am sure of the meaning of `A` but > I doubt the common translation of `I`...) the setup on our end is > quite customized to the URLs exposed by the repos. For the jail > config we currently use > > ``` > [apache-proxy] > enabled = true > filter = apache-proxy > action = hostsdeny-proxy[name = apache-proxy] > logpath = /opt/invenio/var/log/apache-ssl.log > maxretry = 12 > findtime = 5 > bantime = 6000 > ``` > > However, for this to work it's imperative that your proxy pass on > the origin of the request (`X-Forwarded-For`). > > > I am also trying to get educated on modern internet threats and > causes > > for issues like this. > > It might be worthwhile to check up also with the repository > community. With the exposed full texts they provide much more > valuable content for the so called AI than just the bibliographic > description. Additionally, in the past we saw quite aggressive > bots harvesting the full texts for non-AI-related uses, so they > nag us for quite some time. But unfortunately, there is no simple > solution. > > -- > Kind regards, > > Alexander Wagner > > Deutsches Elektronen-Synchrotron DESY > Library and Documentation > > Building 01d Room OG1.444 > Notkestr. 85 > 22607 Hamburg > > phone: +49-40-8998-1758 > e-mail: [email protected] > _______________________________________________ > > Koha mailing list http://koha-community.org > [email protected] > Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha > _______________________________________________ Koha mailing list http://koha-community.org [email protected] Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha _______________________________________________ Koha mailing list http://koha-community.org [email protected] Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha
