Disk space on nodes

Hello guys.
I'm a little bit confused, I see that disk space on the node is 99% full

root@logstash-node1:~# df -h
Файловая система                                       Размер Использовано  Дост Использовано% Cмонтировано в
rootfs                                                   2,0T         1,9T   33G           99% /
udev                                                      10M            0   10M            0% /dev
tmpfs                                                    3,2G         204K  3,2G            1% /run
/dev/disk/by-uuid/7f97356e-8664-4309-a4cc-db629da01115   2,0T         1,9T   33G           99% /
tmpfs                                                    5,0M            0  5,0M            0% /run/lock
tmpfs                                                    6,3G            0  6,3G            0% /run/shm

But in KOPF I see next

Who lying?