On Sat, 2014-11-15 at 13:37 +0100, Raphaël Halimi wrote: > Le 13/11/2014 18:58, Ralf Jung a écrit : > > How does having yet another NTP client shut off existing NTP clients? > > How does having yet another way to configure your network shut off > > existing alternatives? > > How does having yet another web browser integrated in the OS shut off > existing web browsers ? ;) > > > Even syslog is still working! > > No, it's not: > > raph@arche:~$ journalctl | grep Forwarding > nov. 10 20:14:34 arche systemd-journal[207]: Forwarding to syslog missed > 42 messages. > nov. 14 01:02:44 arche systemd-journal[207]: Forwarding to syslog missed > 1 messages. > nov. 14 01:25:31 arche systemd-journal[207]: Forwarding to syslog missed > 2 messages. > nov. 14 01:26:36 arche systemd-journal[207]: Forwarding to syslog missed > 2 messages. > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762700 > > http://lists.freedesktop.org/archives/systemd-devel/2014-August/021897.html > > I know it may be biased since I'm the reporter of the bug, but I'm tired > of reading that systemd replaces all those components smoothly. > > It does not. > > Now on the technical side, when I reported this bug I looked at the > source code. In a nutshell, the comment said "If syslog is too slow, > drop the message" (IIRC it was even more condescending, like "we don't > have to wait for this" or something). Really ? The very piece of code > which is supposed to talk to syslog... doesn't wait for syslog ? [...]
Unfortunately, syslog(3) has never guaranteed that messages actually end up in the log (or are filtered out), nor does it return an error code. Does the interposition of systemd-journald actually make it less reliable? Or, are you annoyed because it called attention to this unreliability whereas messages were previously dropped silently? openlog(3) *does* provide an option to log to the console in case of failure, however, and this presumably won't (and can't) be honoured by systemd-journald if it loses messages later. I don't know whether this option is widely used, or whether the fallback is actually useful in practice. Ben. -- Ben Hutchings Never put off till tomorrow what you can avoid all together.
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