On Fri, Apr 24, 2015 at 4:53 PM, Lennart Poettering <lenn...@poettering.net> wrote: > On Fri, 24.04.15 16:51, Mantas Mikulėnas (graw...@gmail.com) wrote: > >> On Fri, Apr 24, 2015 at 4:24 PM, Lennart Poettering >> <lenn...@poettering.net> wrote: >> > On Fri, 24.04.15 12:06, Peter Paule (systemd-de...@fedux.org) wrote: >> > >> >> Hi, >> >> >> >> I run nginx in a CentOS 7.0 container via systemd-nspawn. nginx logs to >> >> stderr/stdout via configuration to capture logs via journald. >> >> >> >> nginx.conf >> >> >> >> error_log /dev/stderr warn; >> >> >> >> >> >> If I use systemd 219-1 (-1 is the package number of Arch Linux) which >> >> seems >> >> to be a non-patched systemd 219, everything is fine. If I upgrade to >> >> systemd >> >> 219-6, nginx cannot be started via systemd-nspawn. systemd 219-6 includes >> >> this patch >> >> "https://projects.archlinux.org/svntogit/packages.git/tree/repos/core-x86_64/0001-nspawn-when-connected-to-pipes-for-stdin-stdout-pass.patch?h=packages/systemd";. >> >> BTW: I see the same error if I use systemd-git-HEAD. >> >> >> >> I see the following errors in journal - I tried bot "stderr" and "stdout". >> >> >> >> Apr 24 04:48:12 server systemd-nspawn[421]: nginx: [emerg] open() >> >> "/dev/stdout" failed (6: No such device or address) >> >> Apr 24 04:48:45 server systemd-nspawn[496]: nginx: [emerg] open() >> >> "/dev/stderr" failed (6: No such device or address) >> > >> > Any idea what the precise syscall is that triggers that? i.e. what >> > strace says? >> >> It kind of makes sense when stdout is a socket, since >> open(/dev/stdout) or open(/proc/self/fd/*) doesn't just dup that fd, >> it tries to open the file anew (including permission checks and >> everything). A bit annoying. > > Well, but it's not a socket here, is it? Peter?
Hmm, I'm pretty sure the default StandardOutput=journal means stdout will be a socket connection to journald, doesn't it? (And since it's a process-specific thing, "echo "asdf" > /dev/stdout" from an interactive shell will merely test the shell's stdout (which is a tty), not nginx's stdout...) -- Mantas Mikulėnas <graw...@gmail.com> _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
