[Bug 713218] New: Linking /etc/mtab to /proc/self/mounts breaks collectd
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c0 Summary: Linking /etc/mtab to /proc/self/mounts breaks collectd Classification: openSUSE Product: openSUSE 11.4 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: mag@entropy.be QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_1) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.94 Safari/535.1 While running SuSEstudio build appliance I encountered an issue with collectd: Aug 19 18:51:23 BlackBox collectd[15378]: uc_update: Value too old: name = WebYaST/df/df-root; value time = 1313772683; last cache update = 1313772683; Aug 19 18:51:23 BlackBox collectd[15378]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1. Aug 19 18:51:33 BlackBox collectd[15378]: uc_update: Value too old: name = WebYaST/df/df-root; value time = 1313772693; last cache update = 1313772693; It seems linking /etc/mtab to /proc/self/mounts is not a great idea because then rootfs is shown two times in `df` output: # df -h Filesystem Size Used Avail Use% Mounted on rootfs 230G 1,4G 217G 1% / devtmpfs 432M 96K 432M 1% /dev tmpfs 435M 4,0K 435M 1% /dev/shm /dev/sda1 230G 1,4G 217G 1% / and this results in duplicate values in collectd Reproducible: Always Steps to Reproduce: 1. Run a system build via kiwi/susestudio with webyast 2. see /var/log/messages -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c zj jia <zjjia@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zjjia@suse.com AssignedTo|bnc-team-screening@forge.pr |aduffeck@suse.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c1 Andre Duffeck <aduffeck@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aduffeck@suse.com AssignedTo|aduffeck@suse.com |bkutil@suse.com Severity|Normal |Major --- Comment #1 from Andre Duffeck <aduffeck@suse.com> 2011-08-30 10:29:09 UTC --- Balazs, can you look into that? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c2 Adam Spiers <aspiers@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aspiers@suse.com --- Comment #2 from Adam Spiers <aspiers@suse.com> 2012-02-23 11:22:05 UTC --- I see the mtab symlink with two fresh builds of openSUSE 12.1 from DVD onto physical machines so it's not exclusive to susestudio. lrwxrwxrwx 1 root root 17 Mar 18 2011 /etc/mtab -> /proc/self/mounts Presumably there is a good reason for doing that, in which case the problem lies with collectd's df plugin, which is enabled by default with no configuration. I guess most people do not see it because it is (only?) required by webyast: # rpm -q --whatrequires collectd webyast-status-ws-0.2.13-2.1.2.noarch -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c3 --- Comment #3 from Adam Spiers <aspiers@suse.com> 2012-02-23 11:23:16 UTC --- By the way an easy workaround is to comment out the 'LoadPlugin df' line of /etc/collectd.conf. I'm not sure if this breaks anything in WebYaST though. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c4 Adam Spiers <aspiers@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |puzel@suse.com --- Comment #4 from Adam Spiers <aspiers@suse.com> 2012-02-23 11:28:37 UTC --- Sorry for the bug spam, this will be my last comment (for now ;-) (In reply to comment #2)
I see the mtab symlink with two fresh builds of openSUSE 12.1 from DVD onto physical machines so it's not exclusive to susestudio.
lrwxrwxrwx 1 root root 17 Mar 18 2011 /etc/mtab -> /proc/self/mounts
Presumably there is a good reason for doing that
I found the good reason: http://lists.opensuse.org/opensuse-factory/2011-01/msg00130.html Adding Petr to Cc in case he has any ideas ... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c5 Petr Uzel <puzel@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pth@suse.com --- Comment #5 from Petr Uzel <puzel@suse.com> 2012-02-23 12:16:52 UTC --- (In reply to comment #4)
I found the good reason:
http://lists.opensuse.org/opensuse-factory/2011-01/msg00130.html
Adding Petr to Cc in case he has any ideas ...
Well, my only idea is to fix the 'df' utility not to print the rootfs information twice. Adding coreutils maintainer to CC. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c6 --- Comment #6 from Philipp Thomas <pth@suse.com> 2012-02-23 13:31:38 CET --- How is df supposed to be able to distinguish which of the multiple entries to suppress? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c7 --- Comment #7 from Philipp Thomas <pth@suse.com> 2012-02-23 13:43:51 CET --- /proc/mounts lists all mounts as they occurred, i.e. / from initram and then the actual device. If you loop mounted dev you would have two /dev entries. It is IMO up to the user of df's output to filter the information. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c Roman Neuhauser <rneuhauser@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bkutil@suse.com |rneuhauser@novell.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c8 Roman Neuhauser <rneuhauser@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |CLOSED CC| |jatan@suse.com Resolution| |FIXED --- Comment #8 from Roman Neuhauser <rneuhauser@suse.com> 2012-05-22 12:48:04 UTC --- this is an issue in OpenSUSE, and it's been fixed in revision 4 of the collectd package in Factory: https://build.opensuse.org/package/rdiff?linkrev=base&package=collectd&project=openSUSE%3AFactory&rev=4 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c9 --- Comment #9 from Adam Spiers <aspiers@suse.com> 2012-09-25 11:20:14 UTC --- This seems to be a duplicate of bug 709543, however this one has more useful information so the other one should probably be resolved as a duplicate of this one. BTW commenting out loading of the df plugin and restarting collectd no longer works for me as a workaround :-( -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c10 Stefan Brüns <stefan.bruens@rwth-aachen.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |stefan.bruens@rwth-aachen.d | |e --- Comment #10 from Stefan Brüns <stefan.bruens@rwth-aachen.de> 2012-09-25 11:42:44 UTC --- Both bug 709543 and the fix mentioned in #c8 are done by me, so yes, close as duplicate. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c11 --- Comment #11 from Adam Spiers <aspiers@suse.com> 2012-10-08 15:10:40 UTC --- *** Bug 709543 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=709543 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=713218 https://bugzilla.novell.com/show_bug.cgi?id=713218#c12 --- Comment #12 from Adam Spiers <aspiers@suse.com> 2013-01-11 17:13:13 UTC --- (In reply to comment #8)
this is an issue in OpenSUSE, and it's been fixed in revision 4 of the collectd package in Factory:
The .changes file doesn't reference this bug number :-/ Also, can this be backported to 12.2? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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