[systemd-devel] How to reduce systemd logging to syslog ?

surfer at emailengine.net surfer at emailengine.net
Sun Jul 20 15:41:46 PDT 2014 

Hi

I checked at 

	http://lists.freedesktop.org/mailman/listinfo

for a user-specific list for systemd; N/A, afaict.  looks like this is the right one?

I currently have 

	systemd --version
		systemd 210
		+PAM +LIBWRAP +AUDIT +SELINUX -IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ +SECCOMP +APPARMOR

running on my Opensuse distro.

While trying to troubleshoot some _other_ issues, I started tailing my system log (/var/log/messages) -- NOT the systemd journal, and see this

	var/log/messages
		...
		2014-07-19T23:49:42.491394-07:00 core systemd[1]: Started Session c2 of user root.
		2014-07-19T23:49:57.024694-07:00 core systemd[1]: Starting Multi-User System.
		2014-07-19T23:49:57.026411-07:00 core systemd[1]: Reached target Multi-User System.
		2014-07-19T23:49:57.028047-07:00 core systemd[1]: Starting Update UTMP about System Runlevel Changes...
		2014-07-19T23:49:57.040481-07:00 core systemd[1]: Started Update UTMP about System Runlevel Changes.
		2014-07-19T23:49:57.042443-07:00 core systemd[1]: Startup finished in 3.787s (kernel) + 13.917s (initrd) + 2min 8.478s (userspace) = 2min 26.183s.
		2014-07-20T00:02:30.861144-07:00 core systemd[1]: Starting Cleanup of Temporary Directories...
		2014-07-20T00:02:30.862714-07:00 core systemd[5174]: Failed at step EXEC spawning /usr/bin/systemd-tmpfiles-keep: No such file or directory
		2014-07-20T00:02:31.055215-07:00 core systemd[1]: Started Cleanup of Temporary Directories.
		2014-07-20T00:05:11.991934-07:00 core systemd[4259]: Time has been changed
		2014-07-20T00:05:11.993539-07:00 core systemd[1]: Time has been changed
		2014-07-20T00:15:01.978142-07:00 core systemd[1]: Starting Session 2 of user root.
		2014-07-20T00:15:01.979526-07:00 core systemd[1]: Started Session 2 of user root.
		2014-07-20T00:30:01.065850-07:00 core systemd[1]: Starting Session 3 of user root.
		2014-07-20T00:30:01.067825-07:00 core systemd[1]: Started Session 3 of user root.
		2014-07-20T00:45:01.155187-07:00 core systemd[1]: Starting Session 4 of user root.
		2014-07-20T00:45:01.182571-07:00 core systemd[1]: Started Session 4 of user root.
		2014-07-20T01:00:01.328410-07:00 core systemd[1]: Starting Session 5 of user root.
		2014-07-20T01:00:01.330956-07:00 core systemd[1]: Started Session 5 of user root.
		2014-07-20T01:00:01.334588-07:00 core systemd[1]: Starting Session 7 of user root.
		2014-07-20T01:00:01.336794-07:00 core systemd[1]: Started Session 7 of user root.
		2014-07-20T01:00:01.340209-07:00 core systemd[1]: Starting Session 6 of user root.
		2014-07-20T01:00:01.342504-07:00 core systemd[1]: Started Session 6 of user root.
		2014-07-20T01:15:01.949927-07:00 core systemd[1]: Starting Session 8 of user root.
		2014-07-20T01:15:01.952180-07:00 core systemd[1]: Started Session 8 of user root.
		2014-07-20T01:30:01.038844-07:00 core systemd[1]: Starting Session 9 of user root.
		2014-07-20T01:30:01.040821-07:00 core systemd[1]: Started Session 9 of user root.
		2014-07-20T01:45:01.128102-07:00 core systemd[1]: Starting Session 10 of user root.
		2014-07-20T01:45:01.204452-07:00 core systemd[1]: Started Session 10 of user root.
		2014-07-20T02:00:01.219074-07:00 core systemd[1]: Starting Session 11 of user root.
		2014-07-20T02:00:01.220379-07:00 core systemd[1]: Started Session 11 of user root.
		2014-07-20T02:15:01.307696-07:00 core systemd[1]: Starting Session 12 of user root.
		2014-07-20T02:15:01.309656-07:00 core systemd[1]: Started Session 12 of user root.
		2014-07-20T02:30:01.396130-07:00 core systemd[1]: Starting Session 13 of user root.
		2014-07-20T02:30:01.428006-07:00 core systemd[1]: Started Session 13 of user root.
		2014-07-20T02:45:01.486152-07:00 core systemd[1]: Starting Session 14 of user root.
		2014-07-20T02:45:01.488174-07:00 core systemd[1]: Started Session 14 of user root.
		2014-07-20T03:00:01.575444-07:00 core systemd[1]: Starting Session 15 of user root.
		2014-07-20T03:00:01.577814-07:00 core systemd[1]: Started Session 15 of user root.
		2014-07-20T03:15:01.665600-07:00 core systemd[1]: Starting Session 16 of user root.
		2014-07-20T03:15:01.693303-07:00 core systemd[1]: Started Session 16 of user root.
		2014-07-20T03:30:01.755936-07:00 core systemd[1]: Starting Session 17 of user root.
		2014-07-20T03:30:01.759450-07:00 core systemd[1]: Started Session 17 of user root.
		2014-07-20T03:30:01.763262-07:00 core systemd[1]: Starting Session 18 of user root.
		2014-07-20T03:30:01.765237-07:00 core systemd[1]: Started Session 18 of user root.
		2014-07-20T03:33:01.115021-07:00 core systemd[1]: Starting Session 19 of user root.
		2014-07-20T03:33:01.159843-07:00 core systemd[1]: Started Session 19 of user root.
		2014-07-20T03:45:01.800336-07:00 core systemd[1]: Starting Session 20 of user root.
		2014-07-20T03:45:01.802421-07:00 core systemd[1]: Started Session 20 of user root.
		2014-07-20T04:00:01.232184-07:00 core systemd[1]: Starting Session 22 of user root.
		2014-07-20T04:05:01.759437-07:00 core systemd[1]: Started Session 23 of user root.
		2014-07-20T04:10:01.053163-07:00 core systemd[1]: Starting Session 24 of user root.
		2014-07-20T04:15:01.634522-07:00 core systemd[1]: Starting Session 26 of user root.
		2014-07-20T04:15:01.641164-07:00 core systemd[1]: Starting Session 25 of user root.
		2014-07-20T04:15:01.643240-07:00 core systemd[1]: Started Session 25 of user root.
		2014-07-20T04:20:01.231348-07:00 core systemd[1]: Started Session 27 of user root.
		2014-07-20T04:30:01.533501-07:00 core systemd[1]: Starting Session 28 of user root.
		2014-07-20T04:45:01.631577-07:00 core systemd[1]: Starting Session 29 of user root.
		2014-07-20T05:00:01.720982-07:00 core systemd[1]: Starting Session 30 of user root.
		2014-07-20T05:15:01.811143-07:00 core systemd[1]: Starting Session 31 of user root.
		2014-07-20T05:30:01.899017-07:00 core systemd[1]: Starting Session 32 of user root.
		2014-07-20T05:45:01.989750-07:00 core systemd[1]: Starting Session 33 of user root.
		2014-07-20T06:00:01.079502-07:00 core systemd[1]: Starting Session 34 of user root.
		2014-07-20T06:15:01.169215-07:00 core systemd[1]: Starting Session 35 of user root.
		2014-07-20T06:30:01.257909-07:00 core systemd[1]: Starting Session 36 of user root.
		2014-07-20T06:45:01.346672-07:00 core systemd[1]: Starting Session 37 of user root.
		2014-07-20T07:00:01.436247-07:00 core systemd[1]: Starting Session 38 of user root.
		2014-07-20T07:15:01.525228-07:00 core systemd[1]: Starting Session 39 of user root.
		2014-07-20T07:30:01.613590-07:00 core systemd[1]: Starting Session 40 of user root.
		2014-07-20T07:45:01.703411-07:00 core systemd[1]: Starting Session 41 of user root.
		2014-07-20T08:00:01.792705-07:00 core systemd[1]: Starting Session 42 of user root.
		2014-07-20T08:15:01.881847-07:00 core systemd[1]: Starting Session 43 of user root.
		2014-07-20T08:30:01.973598-07:00 core systemd[1]: Starting Session 44 of user root.
		2014-07-20T08:45:01.063414-07:00 core systemd[1]: Starting Session 45 of user root.
		2014-07-20T09:00:01.153099-07:00 core systemd[1]: Starting Session 46 of user root.
		2014-07-20T09:12:32.345463-07:00 core systemd[1]: Starting Session c3 of user root.
		2014-07-20T09:12:32.346640-07:00 core systemd[1]: Started Session c3 of user root.
		2014-07-20T09:12:32.396088-07:00 core systemd-logind[3829]: Removed session c3.
		2014-07-20T09:12:32.413752-07:00 core systemd-logind[3829]: New session c4 of user root.
		2014-07-20T09:12:32.415652-07:00 core systemd[1]: Started Session c4 of user root.
		2014-07-20T09:15:01.242073-07:00 core systemd[1]: Starting Session 47 of user root.
		2014-07-20T09:17:22.885440-07:00 core systemd[1]: Reloading.
		2014-07-20T09:17:23.935251-07:00 core systemd[1]: Configuration file /run/systemd/generator/lvm2-activation-early.service is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.
		2014-07-20T09:17:23.940889-07:00 core systemd[1]: Configuration file /run/systemd/generator/lvm2-activation.service is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.
		2014-07-20T09:30:01.442359-07:00 core systemd[1]: Started Session 48 of user root.
		2014-07-20T09:45:01.531816-07:00 core systemd[1]: Starting Session 49 of user root.
		2014-07-20T09:45:01.533489-07:00 core systemd[1]: Started Session 49 of user root.
		2014-07-20T10:00:01.620633-07:00 core systemd[1]: Starting Session 50 of user root.
		2014-07-20T10:00:01.622827-07:00 core systemd[1]: Started Session 50 of user root.
		2014-07-20T10:15:01.710349-07:00 core systemd[1]: Starting Session 51 of user root.
		2014-07-20T10:15:01.741765-07:00 core systemd[1]: Started Session 51 of user root.
		2014-07-20T10:30:01.800095-07:00 core systemd[1]: Starting Session 52 of user root.
		2014-07-20T10:30:01.802221-07:00 core systemd[1]: Started Session 52 of user root.
		2014-07-20T10:45:01.888946-07:00 core systemd[1]: Starting Session 53 of user root.
		2014-07-20T10:45:01.890979-07:00 core systemd[1]: Started Session 53 of user root.
		2014-07-20T11:00:01.979593-07:00 core systemd[1]: Starting Session 54 of user root.
		2014-07-20T11:00:02.010073-07:00 core systemd[1]: Started Session 54 of user root.
		2014-07-20T11:15:01.069890-07:00 core systemd[1]: Starting Session 55 of user root.
		2014-07-20T11:15:01.072000-07:00 core systemd[1]: Started Session 55 of user root.
		2014-07-20T11:30:01.159965-07:00 core systemd[1]: Starting Session 56 of user root.
		2014-07-20T11:30:01.162618-07:00 core systemd[1]: Started Session 56 of user root.
		2014-07-20T11:45:01.248855-07:00 core systemd[1]: Starting Session 57 of user root.
		2014-07-20T11:45:01.251953-07:00 core systemd[1]: Started Session 57 of user root.
		2014-07-20T12:00:01.339850-07:00 core systemd[1]: Starting Session 58 of user root.
		2014-07-20T12:00:01.342210-07:00 core systemd[1]: Started Session 58 of user root.
		2014-07-20T12:15:01.429552-07:00 core systemd[1]: Starting Session 59 of user root.
		2014-07-20T12:15:01.431952-07:00 core systemd[1]: Started Session 59 of user root.
		2014-07-20T12:30:01.519423-07:00 core systemd[1]: Starting Session 60 of user root.
		2014-07-20T12:30:01.521833-07:00 core systemd[1]: Started Session 60 of user root.
		2014-07-20T12:45:01.612192-07:00 core systemd[1]: Starting Session 61 of user root.
		2014-07-20T12:45:01.614595-07:00 core systemd[1]: Started Session 61 of user root.
		2014-07-20T13:00:01.706694-07:00 core systemd[1]: Starting Session 62 of user root.
		2014-07-20T13:00:01.709359-07:00 core systemd[1]: Started Session 62 of user root.
		2014-07-20T13:15:01.797165-07:00 core systemd[1]: Starting Session 63 of user root.
		2014-07-20T13:15:01.799653-07:00 core systemd[1]: Started Session 63 of user root.
		2014-07-20T13:30:01.886719-07:00 core systemd[1]: Starting Session 64 of user root.
		2014-07-20T13:30:01.889130-07:00 core systemd[1]: Started Session 64 of user root.
		2014-07-20T13:45:01.977121-07:00 core systemd[1]: Starting Session 65 of user root.
		2014-07-20T13:45:02.014466-07:00 core systemd[1]: Started Session 65 of user root.
		2014-07-20T14:00:01.079499-07:00 core systemd[1]: Starting Session 66 of user root.
		2014-07-20T14:00:01.080841-07:00 core systemd[1]: Started Session 66 of user root.
		2014-07-20T14:15:01.172497-07:00 core systemd[1]: Starting Session 67 of user root.
		2014-07-20T14:15:01.175193-07:00 core systemd[1]: Started Session 67 of user root.
		2014-07-20T14:30:01.266128-07:00 core systemd[1]: Starting Session 68 of user root.
		2014-07-20T14:30:01.268925-07:00 core systemd[1]: Started Session 68 of user root.
		2014-07-20T14:45:01.355915-07:00 core systemd[1]: Starting Session 69 of user root.
		2014-07-20T14:45:01.358370-07:00 core systemd[1]: Started Session 69 of user root.
		2014-07-20T15:00:01.446340-07:00 core systemd[1]: Starting Session 70 of user root.
		2014-07-20T15:00:01.448697-07:00 core systemd[1]: Started Session 70 of user root.
		2014-07-20T15:15:01.536552-07:00 core systemd[1]: Starting Session 71 of user root.
		2014-07-20T15:15:01.538078-07:00 core systemd[1]: Started Session 71 of user root.
		...

That's a LOT of not very useful "Started Session ## of user root" noise in system logs that gets in the way of managing my system.  Those messages are EnergizerBunny-entries -- they just keep going, and going, and going.  They're clearly NOT telling me anything helpful -- like that there's a problem, or a state change from "good->bad".

How do I turn that level of systemd logging to my syslog OFF, or reduce it to something more reasonable?  If systemd wants to log to its journal that's one thing -- I understand that we're supposed to "just filter out what you need".  But syslog's a different story.


Thanks,

Jerry

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