Bug 56459

Summary:	journalctl doesn't follow empty logs in verbose modes but exits with an error message
Product:	systemd	Reporter:	Felix <felix.spammagnet>
Component:	general	Assignee:	systemd-bugs
Status:	RESOLVED FIXED	QA Contact:	systemd-bugs
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Felix 2012-10-27 12:04:51 UTC

Hello,

I'm running systemd-195 on ArchLinux. When starting journalctl in a verbose follow mode on an empty log it immediately exits with an error message:

$ journalctl -o verbose -f _EXE=/quiet/binary
-- Logs begin at Wed, 2012-10-24 06:32:32 CEST. --
Failed to get realtime timestamp: Cannot assign requested address

Since the given binary could be a daemon that's currently not running but is going to be started later, I would expect journalctl to wait for messages to appear (as specified in the manual).

Note that the expected behaviour is achieved in the "short" and "short-monotonic" output modes. Using another output mode results in the above error message.

Cheers,
  Felix

Comment 1 Zbigniew Jedrzejewski-Szmek 2013-06-10 02:46:02 UTC

Fixed in http://cgit.freedesktop.org/systemd/systemd/commit/?id=a72b635. Please test.

Comment 2 Felix 2013-06-11 05:15:39 UTC

Thanks for the notice. However, I cannot test the patch right now because I'm running a productive system – but I'm looking forward to the upgrade.

Cheers,
  Felix

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