Jing Luo wrote: > Now that it's almost 2024, HTTP/2 is support by apache2 is mature, it's > probably time for savannah and *.gnu.org to support HTTP/2. It brings better > performance and requires TLS 1.3, but I'll leave this discussion/decision to > FSF admins.
HTTP/2 brings more performance but also brings more vulnerabilities too. The performance differences for a large site like Googles is commensurately large. But performance difference for a small site such as Savannah or even all of gnu.org is small. Therefore this seems like a much less urgent priority than other priorities. Such as recruiting more volunteers! :-) And doing all of the rest of the work that is needed. > As a memo, *IF* savannah enables HTTP/2 support, a few things have to > change: > > The first thing I encountered when deploying HTTP/2 on my own server, is the > apache2 error.log saying: I would not even consider deploying HTTP/2 without first migrating to Nginx. So that would be the first step. > > [http2:warn] [pid 42376] AH10034: The mpm module (prefork.c) is not > > supported by mod_http2. The mpm determines how things are processed in > > your server. HTTP/2 has more demands in this regard and the currently > > selected mpm will just not do. This is an advisory warning. Your server > > will continue to work, but the HTTP/2 protocol will be inactive. > > HTTP/2 requires the apache2 module mpm_event to be enabled. mpm_event > conflicts mpm_prefork, and mpm_prefork is required by "php" (e.g. "php8.2"). > So the solution is to use "php-fpm" (e.g. "php-fpm8.2") instead of "php", > and enable mpm_event and mpm_worker. However regardless I do apprecate you communicating these tidbits. It's generally useful information. It's "ground truth" information and that's always invaluable. > I assume savannah now runs on "php" instead of "php-fpm". IIRC php-fpm is > considered to have better performance than php because it uses workers > instead of threads to handle connections (?). ... Savannah is a collection of services. Savannah's web UI is currently running Apache and libapache2-mod-php but it's long been on my want list to convert it to php-fpm for the reasons you describe. Most of the other Savannah systems run Nginx already. Bob
