Script and low level discovery

[ufocek]

Hi,

I have postgresql 9.4 and catalog pg_xlog I put on different disk

/dev/xvda1            7.6G  1.9G  5.4G  26% /
tmpfs                 500M     0  500M   0% /lib/init/rw
udev                  486M   88K  485M   1% /dev
tmpfs                 500M  4.0K  500M   1% /dev/shm
/dev/xvdc             5.0G  154M  4.6G   4% /var/lib/postgresql/9.4/main/pg_xlog

Root partition is discovered with LLD but /var/lib/postgresql/9.4/main/pg_xlog not because I have permission denied. I can't change 0700, postgresql can't start after I change a permission.

I create a simple script:

#!/bin/bash

MOUNTPOINT='\/var\/lib\/postgresql\/9.4\/main\/pg_xlog'

echo '{"data":[{"{#FSNAME}":"'$MOUNTPOINT'"}]'};

I add to the zabbix_agentd.conf
UserParameter=pxlog.disk,/usr/bin/sudo /home/zabbix/lld.sh


When I checjk zabbix_get -s 192.168.1.143 -k pxlog.disk, I get result:

{"data":[{"{#FSNAME}":"\/var\/lib\/postgresql\/9.4\/main\/pg_xlog"}]}

In zabbix I add a discovery rules on host:

Type:zabbix_agent
Keygxlog.disk
Filters:{#FSTYPE} matches

then I create a intem prototypes:
vfs.fs.size[{#FSNAME},pfree]

Unfortunately it does not work, and the question of where is the problem?