[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
*** This bug is a duplicate of bug 1827159 *** https://bugs.launchpad.net/bugs/1827159 Also applies to squashfs, added bugs as dup ** This bug has been marked a duplicate of bug 1827159 check_all_disks includes squashfs /snap/* which are 100% ** Tags added: server-next -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
** Changed in: nagios-plugins (Ubuntu) Assignee: (unassigned) => Bryce Harrington (bryce) ** Tags removed: server-next -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
** Changed in: nagios-plugins (Ubuntu) Assignee: (unassigned) => Bryce Harrington (bryce) ** Tags removed: server-next -- You received this bug notification because you are a member of Ubuntu Server, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Meanwhile, I've verified the issue seems relevant for newer ubuntu's too: ### Bionic # /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission denied ### Eoan # /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission denied The issue was reported to Debian but don't think an action was taken on it: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910267 Upstream also has recommendation to exclude tracefs for this issue: http://www.dailyithelp.com/nagios-disk-critical-syskerneldebugtracing-is-not-accessible-permission/ ** Bug watch added: Debian Bug tracker #910267 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910267 ** Changed in: nagios-plugins (Ubuntu) Status: Incomplete => Triaged ** Changed in: nagios-plugins (Ubuntu) Importance: Medium => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Ramon, thank you for the detailed test case, I was able to run through it exactly as you described, both as root user (see attached) and as nagios (with sudo setup). I suspect I'm unable to reproduce the issue you're seeing since under lxc the /sys/kernel/debug directory belongs to the host and thus is owned by nobody:nogroup, (although I should think that it would produce a permission denied error.) >From the host: # mount | grep tracing tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime) In any case, regarding the bug itself, I am able to detect the permissions error: # /usr/lib/nagios/plugins/check_disk -e DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission denied # ls -la /sys/kernel/debug/tracing ls: cannot access '/sys/kernel/debug/tracing': Permission denied # /usr/lib/nagios/plugins/check_disk -e -X tracefs DISK OK| /=44420MB;;;0;3754403 /dev=0MB;;;0;0 /dev/full=0MB;;;0;16018 /dev/null=0MB;;;0;16018 /dev/random=0MB;;;0;16018 /dev/tty=0MB;;;0;16018 /dev/urandom=0MB;;;0;16018 /dev/zero=0MB;;;0;16018 /dev/fuse=0MB;;;0;16018 /dev/net/tun=0MB;;;0;16018 /dev/lxd=0MB;;;0;0 /dev/.lxd-mounts=0MB;;;0;0 /dev/shm=0MB;;;0;16041 /run=16MB;;;0;16041 /run/lock=0MB;;;0;5 /sys/fs/cgroup=0MB;;;0;16041 /var/lib/lxd/shmounts=0MB;;;0;0 /var/lib/lxd/devlxd=0MB;;;0;0 /run/user/1001=0MB;;;0;3208 The suggestion in comment #16 looks like the best approach for addressing the issue so far. Alternatively, I posted a patch to LP #1827159 for altering check_disk itself, however as mentioned in comment #9 on this bug, excluding all tmpfs would be too broad. Ramon, if you can test out the approach outlined in comment #16 and let me know if it seems suitable for your use case, perhaps we should proceed with implementing an SRU for that. ** Attachment added: "Screenshot from 2019-07-17 14-19-10.png" https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+attachment/5277690/+files/Screenshot%20from%202019-07-17%2014-19-10.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
** Tags added: server-next -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
The reason why this alert pops out is related to running sosreport on this node. Nagios can not access it - which is good as this directory is only accessible by root: # ll /sys/kernel/debug/ | grep trac drwx-- 8 root root 0 Jul 9 09:06 tracing/ To validate/replicate this behaviour, please open three terminals. Terminal 1, run mount | grep -i tracing - no output here as this directory is generally not presented by mount Terminal 2: mkdir testing; cd testing while true;do mount | grep -i tracing > mounted-$(date +%s); done on terminal 1 please run cd testing watch ls -lt Terminal 3 sudo sosreport -a --all-logs Watch Terminal 1. On the beginning, you will see files created with 0 in size. When you start sosreport in another window/tmux this file gets populated - meaning munt can see it. Why does it become available? Sosreport gathers diagnostic information and initiates it. This directory is not visible from mount during normal operation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
This looks similar to https://bugs.launchpad.net/ubuntu/+source /monitoring-plugins/+bug/1827159. However, installing nagios-plugins in a fresh Xenial LXC container does not appear sufficient to reproduce the bug: 1. There is no /sys/kernel/debug/tracing present on the system. Installing perf-tools-unstable caused the directory to be created. 2. There is not a nagios user on the system. I created this manually, but wonder if there is some third component that should be installed, that would create this? 3. The directory in question is owned by 'nobody': root@triage-xenial:~# ls -l /sys/kernel/debug/tracing ls: cannot access '/sys/kernel/debug/tracing': Permission denied root@triage-xenial:~# ls -l /sys/kernel (...) drwx-- 36 nobody nogroup0 Jul 10 23:10 debug (...) It would be quite helpful to have a step-by-step test case that can be invoked in a Xenial lxc container. Has anyone checked that this same issue affects bionic or newer, or is Xenial-specific? ** Changed in: nagios-plugins (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Currently experiencing this issue at customer site where there is a permission issue as nagios user can't access this directory, this particular mount point/directory is owned by root and the permission set on this is 700. ubuntu@XXnagios-1:/snap/core/7270$ /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission denied ubuntu@XXnagios-1:/snap/core/7270$ sudo ls -ld /sys/kernel/debug/tracing drwx-- 8 root root 0 May 9 11:22 /sys/kernel/debug/tracing ubuntu@nagios-1:/snap/core/7270$ mount | grep /sys/kernel/debug/tracing tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
This is also affecting a confined xenial LXC environment, and was fixed by adding "--exclude-type=tracefs" on the check_all_disks command definition at /etc/nagios-plugins/config/disk.cfg monitoring-plugins-basic should be updated with the above. ** Tags added: canonical-bootstack -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Since check_all_disks is internally defined in Nagios, you might well
see a "duplicate definition" error if you define your own
check_all_disks command. I'd recommend
define command{
command_name check_all_physical_disks
command_line /usr/lib/nagios/plugins/check_disk -w '$ARG1$' -c '$ARG2$' -e
-A --exclude-type=tracefs --exclude-type=cgroup
--exclude_device=/run/lxcfs/controllers
}
instead, and then call that in your host definition:
define service {
use generic-service
hostgroup_name all
service_description Disk Space
check_command check_all_physical_disks!6%!4%
}
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Title:
check_disk plugin broken after upgrade to 15.10
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[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Oops - please disregard comment #14 - it's specific to Icinga. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
This appears to be fixed upstream via https://github.com/Icinga/icinga2/issues/4184 ** Bug watch added: github.com/Icinga/icinga2/issues #4184 https://github.com/Icinga/icinga2/issues/4184 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
These days /etc/mtab is a symlink to /proc/self/mounts, so you cannot control what is exposed there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
We normally netboot but we had a few machines that would not PXE, so we installed 14.04 via medium. Afterwards, some of the medium-installed machines were throwing this error in Nagios. Found this line in /etc/mtab on the afflicted hosts: tracefs /var/lib/ureadahead/debugfs/tracing tracefs rw,relatime 0 0 This appears to be an artifact on the medium-based install process. I removed the above line and ran: sudo service nagios-nrpe-server restart Error condition cleared. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Possibly related to #499773 which is about install adding spurious entries to mtab. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Rather than excluding tmpfs, just exclude /run/lxcfs/controllers. This
is the check_all_disks command I'm now using in my /etc/nagios-
plugins/config/disk.cfg:
# 'check_all_disks' command definition
define command{
command_namecheck_all_disks
command_line/usr/lib/nagios/plugins/check_disk -w '$ARG1$' -c
'$ARG2$' -e -A --exclude-type=tracefs --exclude-type=cgroup
--exclude_device=/run/lxcfs/controllers
}
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check_disk plugin broken after upgrade to 15.10
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[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
The workaround is not really great when LXD/LXC is in use: $ /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs DISK CRITICAL - /run/lxcfs/controllers is not accessible: Permission denied $ /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs --exclude-type=cgroup DISK CRITICAL - /run/lxcfs/controllers is not accessible: Permission denied $ /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs --exclude-type=tmpfs DISK CRITICAL - /run/lxcfs/controllers/blkio is not accessible: Permission denied So it only works when we exclude all three above, including tmpfs: $ /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs --exclude-type=cgroup --exclude-type=tmpfs However, tmpfs is very often used for /tmp, /dev/shm, which are also important to monitor - and --exclude-type=tmpfs makes the check skip these mountpoints. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
This is also broken in ubuntu 16.04, however the workaround mentioned works /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Same probably for gvfs-fuse filesystems. Recommend --exclude-type=tracefs --exclude-type=fuse.gvfsd-fuse -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
You can use the --exclude-type option to work this bug around: /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
You can use the --exclude-type option to work this bug around: /usr/lib/nagios/plugins/check_disk -e --exclude-type=tracefs -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Thank you for taking the time to report and investigate this bug and helping to make Ubuntu better. It sounds to me like check_disk should have a blacklist of filesystem types to ignore. But explicitly specifying which mount points looks like a suitable workaround. I wonder if this affects monitoring-plugins in Xenial? ** Changed in: nagios-plugins (Ubuntu) Importance: Undecided => Medium ** Changed in: nagios-plugins (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Thank you for taking the time to report and investigate this bug and helping to make Ubuntu better. It sounds to me like check_disk should have a blacklist of filesystem types to ignore. But explicitly specifying which mount points looks like a suitable workaround. I wonder if this affects monitoring-plugins in Xenial? ** Changed in: nagios-plugins (Ubuntu) Importance: Undecided => Medium ** Changed in: nagios-plugins (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
I suspect there isn't a code change here, but rather a difference in the way Ubuntu is presenting its mount points. The plugin tries to enumerate and check all mounts. A better use might be to add the actual mount points to be monitored with -p /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e -p / -p /var -p /boot 12.04: mount none on /sys/kernel/debug type debugfs (rw) 14.04: debugfs on /sys/kernel/debug type debugfs (rw,relatime) tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
strace confirms that check_disk on 12.04 doesn't check /sys/kernel/debug/tracing Not having any luck tracking down a code change in the monitoring- plugins github repo. I wonder if this is a change in a dependent lib instead. Here's a workaround sudo chown root:root /usr/lib/nagios/plugins/check_disk sudo chmod u+s /usr/lib/nagios/plugins/check_disk sudo chmod o+x /usr/lib/nagios/plugins/check_disk -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
strace confirms that check_disk on 12.04 doesn't check /sys/kernel/debug/tracing Not having any luck tracking down a code change in the monitoring- plugins github repo. I wonder if this is a change in a dependent lib instead. Here's a workaround sudo chown root:root /usr/lib/nagios/plugins/check_disk sudo chmod u+s /usr/lib/nagios/plugins/check_disk sudo chmod o+x /usr/lib/nagios/plugins/check_disk -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
I suspect there isn't a code change here, but rather a difference in the way Ubuntu is presenting its mount points. The plugin tries to enumerate and check all mounts. A better use might be to add the actual mount points to be monitored with -p /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e -p / -p /var -p /boot 12.04: mount none on /sys/kernel/debug type debugfs (rw) 14.04: debugfs on /sys/kernel/debug type debugfs (rw,relatime) tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Also note that while 15.10 does change the permissions on /sys/kernel/debug/tracing (from drwxr-xr-x in 15.04 to drwx-- in 15.10), the permissions on /sys/kernel/debug are drwx-- on both 15.10 and 15.04 - which means that /sys/kernel/debug shouldn't be readable from a non-root account on either release, so this looks like a code change in check_disk. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nagios-plugins in Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Also note that while 15.10 does change the permissions on /sys/kernel/debug/tracing (from drwxr-xr-x in 15.04 to drwx-- in 15.10), the permissions on /sys/kernel/debug are drwx-- on both 15.10 and 15.04 - which means that /sys/kernel/debug shouldn't be readable from a non-root account on either release, so this looks like a code change in check_disk. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: nagios-plugins (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: nagios-plugins (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nagios-plugins in Ubuntu. https://bugs.launchpad.net/bugs/1516451 Title: check_disk plugin broken after upgrade to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1516451/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
