[Monitorix-general] Monitorix log - uninitialised values in fs.pm

[c***@yahoo.co.uk]

Hi I've recently installed monitorix on a test system and configured the
disk/fs parts, the graphs for the file system usage appear to be
displaying correctly however looking at the monitorix log file shows
there's an issue:

Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $read_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $read_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $read_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $read_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $read_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.

The log file is full of lines detailing the same error.
The relevant section of the config file:
.....
<disk>
<list>
0 = /dev/sda1, /dev/mapper/centos-root,
/dev/mapper/centos-home, /dev/mapper/centos-var, /dev/mapper/centos-tmp
</list>

<fs>
<list>
0 = /, /boot, /var, /home, /tmp
</list>
<desc>
/ = Root Filesystem
/boot = Boot Vol
/home = Home Directory
/var = Logging Dir
/tmp = Temp Dir
</desc>
<devmap>
/ = /dev/mapper/centos-root
/boot = /dev/sda1
/var = /dev/mapper/centos-var
/home = /dev/mapper/centos-home
/tmp = /dev/mapper/centos-tmp
</devmap>

~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 8.2G 2.4G 5.9G 29% /
devtmpfs 913M 0 913M 0% /dev
tmpfs 921M 0 921M 0% /dev/shm
tmpfs 921M 12M 909M 2% /run
tmpfs 921M 0 921M 0% /sys/fs/cgroup
/dev/mapper/centos-var 20G 849M 19G 5% /var
/dev/mapper/centos-home 4.9G 33M 4.9G 1% /home
/dev/sda1 497M 174M 324M 35% /boot
/dev/mapper/centos-tmp 4.9G 33M 4.9G 1% /tmp

Cheers

[Jordi Sanfeliu]

Hi,

Post by c***@yahoo.co.uk
Hi I've recently installed monitorix on a test system and configured the
disk/fs parts, the graphs for the file system usage appear to be
displaying correctly however looking at the monitorix log file shows
Use of uninitialized value $write_cnt in addition (+) at
/usr/lib/monitorix/fs.pm line 764.
Use of uninitialized value $write_sec in addition (+) at
/usr/lib/monitorix/fs.pm line 765.

[...]

These error messages dosen't help much if you don't provide a complete
log since Monitorix was started.

Post by c***@yahoo.co.uk
The log file is full of lines detailing the same error.
.....
<disk>
<list>
0 = /dev/sda1, /dev/mapper/centos-root,
/dev/mapper/centos-home, /dev/mapper/centos-var, /dev/mapper/centos-tmp
</list>

The error messages are in 'fs.pm' so, the 'disk' is not relevant here.

Post by c***@yahoo.co.uk
<fs>
<list>
0 = /, /boot, /var, /home, /tmp
</list>
<desc>
/ = Root Filesystem
/boot = Boot Vol
/home = Home Directory
/var = Logging Dir
/tmp = Temp Dir
</desc>
<devmap>
/ = /dev/mapper/centos-root
/boot = /dev/sda1
/var = /dev/mapper/centos-var
/home = /dev/mapper/centos-home
/tmp = /dev/mapper/centos-tmp
</devmap>
~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 8.2G 2.4G 5.9G 29% /
devtmpfs 913M 0 913M 0% /dev
tmpfs 921M 0 921M 0% /dev/shm
tmpfs 921M 12M 909M 2% /run
tmpfs 921M 0 921M 0% /sys/fs/cgroup
/dev/mapper/centos-var 20G 849M 19G 5% /var
/dev/mapper/centos-home 4.9G 33M 4.9G 1% /home
/dev/sda1 497M 174M 324M 35% /boot
/dev/mapper/centos-tmp 4.9G 33M 4.9G 1% /tmp
Cheers

Why are you mapping each mount point in the <devmap> section? Are you
doing this because you noticed that Monitorix was unable to detect it
automatically?

Moreover, if the devices you have mapped are not in the file
'/proc/diskstats' you are preventing Monitorix to work properly.

Please, remove the lines inside the section <devmap>, restart Monitorix
and check the log file to see possible error messages during the
initialization.

Regards.