Hello, Could be related to http/2 multiplexing features.
Multiplexing should enhance performance but in some situations it does not (if the browser is not compatible etc) I would try disabling http2 to confirm the root cause by setting. server.http2.enabled=false Best regards. Le sam. 4 nov. 2023 à 07:45, Doug C <wdouglascampb...@gmail.com> a écrit : > I also experienced something like this when upgrading from 6.5.8 to > 6.6.13. When running 6.6.13, a number of .js files would not load due to a > *net::ERR_HTTP2_PROTOCOL_ERROR* error. > > After downgrading to 6.6.10, there were no errors. > > I also attempted 6.6.11 and 6.6.12 and while there are no errors, it is > also extremely slow to respond. At least on the first page load for any of > the configured service registries and the processing of their logins. > After that it speeds up but is overall slow compared to 6.6.10. > > I noticed that the version of Tomcat increases with each release so I did > a test of switching the tomcat-*.jar files in 6.6.10 with those distributed > with 6.6.13; this switches from running Tomcat 9.0.78 to 9.0.81. After > doing so when I access the CAS login page, I again am unable to load a > number of .js files due to the same error. > > I then did a similar switch with 6.6.13 to downgrade Tomcat to 9.0.78. > After doing so there was no problem loading the .js files. There was a > slight quirk with what I believe is a custom label in my theme. > > Now, this only seems to maybe address the issue of the .js files not > loading. There also appears to be a much slower initial response to page > loads and a slightly slower continual response to page loads and login > responses. > > I would appreciate any thoughts on how to continue to troubleshooting what > is happening. > > Oh, one final note. I did try out the latest 7.0.0 snapshot and found > that the .js not loading is not a problem there but the slow response is. > > Thanks! > > > On Thursday, November 2, 2023 at 1:40:43 PM UTC-4 spfma...@e.mail.fr > wrote: > >> Hi, >> >> I was planning to update our 6.4.2 instances to 6.6.13, when I discovered >> something strange : when the login page is called for the first time on a >> freshly launched browser (or after total cache cleaning), it takes ages to >> be rendered (over 20s). But all subsequent calls are fine as long as the >> browser is not restarted. >> >> This has been experienced with Firefox, Chromium and Edge on both Linux >> and Windows. >> >> Of course, everyting was fine with the current 6.4.2. >> >> I order to investigate in a neutral context, I gave a try to the stock >> "apereo/cas:6.6.13" official Docker image and the problem also occurs. >> As it is very easy to try different versions with Docker images, I did >> the same with "6.6.12" version : no problem at all, everything is fine from >> the beginning. >> >> I also wanted to build it with my own configuration and additions, but I >> am a bit lost with releases, as "6.6.12" and "6.6.13" archives contain >> "7.0.0-SNAPSHOT" stuff. The one tagged as >> "cas-overlay-template-20231031143146" is also "faulty" and as was not able >> to get any "6.6.12" archive or earlier. >> >> Fortunately, I had downloaded a "6.6.10" release which is working >> correctly. In case of severe "updatemania", I can still deploy this one. >> >> Using the web development tools to debug page rendering shows there is a >> huge amount of spent with JS inclusions with the "faulty" versions. >> So I think there is something wrong with those JS librairies, as >> disabling JS in the browser allows the page to be rendered in a snap. But >> of course, it's not a viable option IRL unfortunately :-( >> >> I can sound vain, but with more than one thousand users almost threatened >> with death if they don't switch off their computer every night, I don't >> want to expose ourselves to a support tickets storm saying "something is >> wrong with x or y application", just because morning login phase has >> become excessively slow :-) >> >> Is there a workaround ? JS is definitely not my cup of tea so I have no >> idea how to fix that or what to replace. >> >> Regards >> >> >> >> >> >> >> >> >> >> ------------------------------ >> FreeMail powered by mail.fr > > -- > - Website: https://apereo.github.io/cas > - Gitter Chatroom: https://gitter.im/apereo/cas > - List Guidelines: https://goo.gl/1VRrw7 > - Contributions: https://goo.gl/mh7qDG > --- > You received this message because you are subscribed to the Google Groups > "CAS Community" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cas-user+unsubscr...@apereo.org. > To view this discussion on the web visit > https://groups.google.com/a/apereo.org/d/msgid/cas-user/e3b20bdc-3920-4f10-8957-40603d34f297n%40apereo.org > <https://groups.google.com/a/apereo.org/d/msgid/cas-user/e3b20bdc-3920-4f10-8957-40603d34f297n%40apereo.org?utm_medium=email&utm_source=footer> > . > -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. 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