Wrong value with vfs.fs.size

[Oyabi]

Hi,

I create a partition discover rules and its work for many hosts except 2 servers.
Or rather one partition (/home).
I'm supposed to have 1.5To available :

[root]# df -h /home
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
/dev/md0           1,8T    285G  1,5T  17% /home
[root]# df -H /home
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
/dev/md0           2,0T    306G  1,6T  17% /home

When I run zabbix_agentd -t, the result show seems to be good :

[root]# sudo -H -u zabbix bash -c "zabbix_agentd -t vfs.fs.size[/home,free]"
vfs.fs.size[/home,free]                       [u|1563675959296]

But in zabbix web interface in latest data, I get these results:

2017-02-27 10:39:42 : 26970767360
2017-02-27 10:34:42 : 26970812416
2017-02-27 10:29:42 : 26970853376
2017-02-27 10:24:42 : 26970890240
2017-02-27 10:19:42 : 26970931200
2017-02-27 10:14:42 : 26970972160
2017-02-27 10:09:42 : 26971029504

Here is some information about my machines :

[root]# uname -a
Linux ns3722508-prox4 4.4.40-1-pve #1 SMP Wed Feb 8 16:13:20 CET 2017 x86_64 GNU/Linux
[root]# zabbix_agentd -V
zabbix_agentd (daemon) (Zabbix) 3.2.3
Revision 64610 21 December 2016, compilation time: Dec 21 2016 14:43:36
[root]# cat /etc/debian_version
8.7

My client is connected to my server :

[root]# zabbix_server -V
zabbix_server (Zabbix) 3.2.3
Revision 64610 21 December 2016, compilation time: Dec 21 2016 14:43:36

How can I resolve that please ?

Regards.

[Oyabi]

Hum... up.

[Oyabi]

Really no idea guys ?

[jerelev]

There is a discovery rule already created for that in the Linux OS Template which is working fine, as far as i know.
Can you compare yours and this one and check if you missed something?
Can you consider using it?

Bonne chance.

[Oyabi]

Zabbix Official Linux Template does not detect /home.
My filter in the template :

^(ext3|ext4)$

Partition's size seem right with all others except /home (does not appear in zabbix-web).

Maybe my fstab can help you :

[root]# cat /etc/fstab
# HEADER: This file was autogenerated at 2017-03-01 10:40:14 +0100
# HEADER: by puppet.  While it can still be managed manually, it
# HEADER: is definitely not recommended.
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/md1        /       ext4    errors=remount-ro,discard       0       1
/dev/md5        /var/lib/vz     ext4    defaults,discard        1       2
/dev/sda2       swap    swap    defaults        0       0
/dev/sdb2       swap    swap    defaults        0       0
proc    /proc   proc    defaults        0       0
sysfs   /sys    sysfs   defaults        0       0
/dev/md0        /home   ext4    defaults        0       0

I checked my logs and /home is considered like a tmpfs partition :

 11057:20170308:102915.513 for key [vfs.fs.discovery] received value [{"data":[{"{#FSNAME}":"/","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/dev","{#FSTYPE}":"devtmpfs"},{"{#FSNAME}":"/dev/pts","{#FSTYPE}":"devpts"},{"{#FSNAME}":"/dev/shm","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/dev/mqueue","{#FSTYPE}":"mqueue"},{"{#FSNAME}":"/dev/hugepages","{#FSTYPE}":"hugetlbfs"},{"{#FSNAME}":"/run","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/lock","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/rpc_pipefs","{#FSTYPE}":"rpc_pipefs"},{"{#FSNAME}":"/run/cgmanager/fs","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/sys","{#FSTYPE}":"sysfs"},{"{#FSNAME}":"/sys/kernel/security","{#FSTYPE}":"securityfs"},{"{#FSNAME}":"/sys/fs/cgroup","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/sys/fs/cgroup/systemd","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/cpuset","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/cpu,cpuacct","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/blkio","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/memory","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/devices","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/freezer","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/net_cls,net_prio","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/perf_event","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/hugetlb","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/pids","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/pstore","{#FSTYPE}":"pstore"},{"{#FSNAME}":"/sys/kernel/debug","{#FSTYPE}":"debugfs"},{"{#FSNAME}":"/sys/fs/fuse/connections","{#FSTYPE}":"fusectl"},{"{#FSNAME}":"/proc","{#FSTYPE}":"proc"},{"{#FSNAME}":"/proc/sys/fs/binfmt_misc","{#FSTYPE}":"autofs"},{"{#FSNAME}":"/var/lib/vz","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/var/lib/lxcfs","{#FSTYPE}":"fuse.lxcfs"},{"{#FSNAME}":"/etc/pve","{#FSTYPE}":"fuse"},{"{#FSNAME}":"/home","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/root","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/user","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/tmp","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/var/tmp","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/bin","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/boot","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/etc","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/etc/pve","{#FSTYPE}":"fuse"},{"{#FSNAME}":"/lib","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/lib64","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/sbin","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/usr","{#FSTYPE}":"ext4"}]}]
 11057:20170308:102915.513 In process_value() key:'_OVH_Prox4:vfs.fs.discovery' value:'{"data":[{"{#FSNAME}":"/","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/dev","{#FSTYPE}":"devtmpfs"},{"{#FSNAME}":"/dev/pts","{#FSTYPE}":"devpts"},{"{#FSNAME}":"/dev/shm","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/dev/mqueue","{#FSTYPE}":"mqueue"},{"{#FSNAME}":"/dev/hugepages","{#FSTYPE}":"hugetlbfs"},{"{#FSNAME}":"/run","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/lock","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/rpc_pipefs","{#FSTYPE}":"rpc_pipefs"},{"{#FSNAME}":"/run/cgmanager/fs","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/sys","{#FSTYPE}":"sysfs"},{"{#FSNAME}":"/sys/kernel/security","{#FSTYPE}":"securityfs"},{"{#FSNAME}":"/sys/fs/cgroup","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/sys/fs/cgroup/systemd","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/cpuset","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/cpu,cpuacct","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/blkio","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/memory","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/devices","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/freezer","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/net_cls,net_prio","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/perf_event","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/hugetlb","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/cgroup/pids","{#FSTYPE}":"cgroup"},{"{#FSNAME}":"/sys/fs/pstore","{#FSTYPE}":"pstore"},{"{#FSNAME}":"/sys/kernel/debug","{#FSTYPE}":"debugfs"},{"{#FSNAME}":"/sys/fs/fuse/connections","{#FSTYPE}":"fusectl"},{"{#FSNAME}":"/proc","{#FSTYPE}":"proc"},{"{#FSNAME}":"/proc/sys/fs/binfmt_misc","{#FSTYPE}":"autofs"},{"{#FSNAME}":"/var/lib/vz","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/var/lib/lxcfs","{#FSTYPE}":"fuse.lxcfs"},{"{#FSNAME}":"/etc/pve","{#FSTYPE}":"fuse"},{"{#FSNAME}":"/home","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/root","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/run/user","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/tmp","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/var/tmp","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/bin","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/boot","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/etc","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/etc/pve","{#FSTYPE}":"fuse"},{"{#FSNAME}":"/lib","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/lib64","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/sbin","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/usr","{#FSTYPE}":"ext4"}]}'

Meh, after add tmpfs in my filter I get... always the wrong size (25GB and not 1,4TB).

Any idea ?

Regards.