On Tue, 11.01.11 15:46, Marius Tolzmann (tolzm...@molgen.mpg.de) wrote: > > > hi again.. > > On 01/11/11 11:51, Alexander E. Patrakov wrote: > >After more research, I found the under-documented lighttpd-angel > >program. It does what is needed for babysitting lighttpd: performs the > >"send SIGINT to the old copy and immediately start the new one" dance > >when it receives SIGHUP. See > >http://blog.lighttpd.net/articles/2007/09/02/there-is-an-angel-for-lighty . > >So here is a working unit file for lighttpd, with graceful reloading: > > i found this too but thought is was only intended to be included in > versions 1.5+ of lighttpd.. after compiling and installing the > latest lighttpd to test the systemd unit i was happy that the > "angel" is already shipped in the 1.4.x series.. 8) > > >If you also want graceful stop, you may want to add: > > > >ExecStop=/bin/kill -INT $MAINPID > > > >but this doesn't work, as lighttpd gets killed immediately. I don't know > >why this happens. > > have you tried KillMode=process here?
The stop command should be sync, otherweise systemd finds that there is still process running and will kill it right-away with SIGTERM. That means lighthttpd will receive first INT and then very likely TERM too. And KillMode=process will only avoid that the TERM is sent to the non-main processes, but the main process will still receive two signlas in most cases. > > >Also, the "test config before reloading" feature still doesn't work > >right. If I add this ExecReload line before the existing one: > > > >ExecReload=/usr/sbin/lighttpd -t -f /etc/lighttpd/lighttpd.conf > > > >then systemd will kill lighttpd-angel when the configuration file is > >bad. It should instead complain to syslog and do nothing with the > >running instances of lighttpd and lighttpd-angel. > > The behaviour seems to be undocumented (at least i havn't found > anything) if the ExecReload= command fails. Hmm, we probably shouldn't shut down the service if a reload fails. /me adds this to the TODO list. Lennart -- Lennart Poettering - Red Hat, Inc. _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
