rotaki/nfs-lock-experiment

Setup NFS

sudo mkdir -p /data/nfs-storage
docker-compose up -d

# find IP address of docker
ip addr
# docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
#    link/ether 02:42:49:40:46:ee brd ff:ff:ff:ff:ff:ff
#    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
#       valid_lft forever preferred_lft forever

# mount
sudo mount -t nfs 172.17.0.1:/ /mnt

# check
df -h
# 172.17.0.1:/    468G   98G  347G  22% /mnt

if it fails to create a docker container because port 2049 is in use, stop nfs kernel service using the following commands and retry again.

sudo service portmap stop
sudo service nfs-kernel-server stop

Experiment

python3 lock-experiment.py lock_type dir

lock_type

1. link1 -- ref
2. link2 -- ref
3. open

Test

./test.sh