My Graylog server Mongodb is Down about graylog2-images HOT 4 CLOSED

I add new disk to VM and follow this

http://docs.graylog.org/en/2.2/pages/configuration/graylog_ctl.html#extend-ova-disk

from graylog2-images.

Hi,
looks like the VM was stopped without a clean shutdown. Check that the system is in a decent state, no filesystem problems, enough disk space free... Then remove the old lock-file /var/opt/graylog/data/mongodb/mongod.lock and restart MongoDB.

from graylog2-images.

Hi,
looks like the VM was stopped without a clean shutdown. Check that the system is in a decent state, no filesystem problems, enough disk space free... Then remove the old lock-file /var/opt/graylog/data/mongodb/mongod.lock and restart MongoDB.

I try rm -rf /var/opt/graylog/data/mongodb/mongod.lock and then restart server is not wok

from graylog2-images.

My disk

:/home/ubuntu# df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 2009296 4 2009292 1% /dev
tmpfs 404656 440 404216 1% /run
/dev/dm-0 15648688 15121812 0 100% /
none 4 0 4 0% /sys/fs/cgroup
none 5120 0 5120 0% /run/lock
none 2023272 0 2023272 0% /run/shm
none 102400 0 102400 0% /run/user
/dev/sda1 240972 79185 149346 35% /boot
overflow 1024 32 992 4% /tmp

from graylog2-images.