Cannot obtain filesystem information: [13] Permission denied

[Netbulae]

Since I did an upgrade to zabbix-server-2.4.4-1.el6.x86_64 on Centos 6.6, I get the following error message for our discovered filesystems.

"Cannot obtain filesystem information: [13] Permission denied"

When I run:
zabbix_get -s localhost -k vfs.fs.size[/var/lib/pgsql/9.3/data,free]

I get an empty reply.

When I run:
zabbix_agentd -t vfs.fs.discovery

I get normal results:
vfs.fs.discovery [s|{"data":[{"{#FSNAME}":"/","{#FSTYPE}":"rootfs"},{"{#FSNAME}":"/proc","{#FSTYPE}":"proc"},{"{#FSNAME}":"/sys","{#FSTYPE}":"sysfs"},{"{#FSNAME}":"/dev","{#FSTYPE}":"devtmpfs"},{"{#FSNAME}":"/dev/pts","{#FSTYPE}":"devpts"},{"{#FSNAME}":"/dev/shm","{#FSTYPE}":"tmpfs"},{"{#FSNAME}":"/","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/selinux","{#FSTYPE}":"selinuxfs"},{"{#FSNAME}":"/dev","{#FSTYPE}":"devtmpfs"},{"{#FSNAME}":"/proc/bus/usb","{#FSTYPE}":"usbfs"},{"{#FSNAME}":"/var/lib/pgsql/9.3/data","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/boot","{#FSTYPE}":"ext4"},{"{#FSNAME}":"/proc/sys/fs/binfmt_misc","{#FSTYPE}":"binfmt_misc"}]}]

I also tried the agent running as root instead of zabbix user, but this doesn't help.

Any pointers?

[Netbulae]

Solved

I had to set the permissions on the mount point correclty. I already put the zabbix user in the group but the group had no rx permissions

[offspring]

I have the same problem.
Everything worked fine on my EC2 instance, but after I added a new 1.5Tb volume new graphics are not drawn, and I see an error: Cannot obtain filesystem information: [13] Permission denied

Rebooting zabbix-agent did not helped

[coreychristian]

I have the same problem.
Everything worked fine on my EC2 instance, but after I added a new 1.5Tb volume new graphics are not drawn, and I see an error: Cannot obtain filesystem information: [13] Permission denied

Rebooting zabbix-agent did not helped

Check that the zabbix user (or the user running the zabbix agent), has permissions to read the mount point for the new file system.