# HDFS NFS support for docker **URL:** \ **Category:** Support\ **Created:** [August 8, 2018, 12:02pm UTC](https://forums.mobyproject.org/t/hdfs-nfs-support-for-docker/318 "2018-08-08T12:02:27Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![mayank](https://avatars.discourse-cdn.com/v4/letter/m/bc8723/32.png) [@mayank](https://forums.mobyproject.org/u/mayank)\ **Post date:** [August 8, 2018, 12:02pm UTC](https://forums.mobyproject.org/t/hdfs-nfs-support-for-docker/318/1 "2018-08-08T12:02:27Z")
Hi, I am working on docker with HDFS NFS gateway. Docker “host” network I used for hadoop master and slave. I have stopped host rpcbind and nfs, and then run hdfs nfs services inside container ‘rpcinfo -p localhost’ shows: program vers proto port service 100005 3 udp 4242 mountd 100005 1 tcp 4242 mountd 100000 2 udp 111 portmapper 100000 2 tcp 111 portmapper 100005 3 tcp 4242 mountd 100005 2 tcp 4242 mountd 100003 3 tcp 2049 nfs 100005 2 udp 4242 mountd 100005 1 udp 4242 mountd Then hadoop daemons are started, jps shows: 1344 Portmap 3345 NameNode 3793 SecondaryNameNode 4434 NodeManager 4706 JobHistoryServer 3525 DataNode 1708 Nfs3 4988 Jps 4109 ResourceManager Output of showmount -e is: Export list for master: / \* When I try to mount hdfs inside container, following error is thrown: $mount -o nolock,vers=3 localhost:/ /CHK -vvv mount: fstab path: “/etc/fstab” mount: mtab path: “/etc/mtab” mount: lock path: “/etc/mtab~” mount: temp path: “/etc/mtab.tmp” mount: UID: 0 mount: eUID: 0 mount: no type was given - I’ll assume nfs because of the colon mount: spec: “localhost:/” mount: node: “/CHK” mount: types: “nfs” mount: opts: “nolock,vers=3” final mount options: ‘nolock,vers=3’ mount: external mount: argv[0] = “/sbin/mount.nfs” mount: external mount: argv[1] = “localhost:/” mount: external mount: argv[2] = “/CHK” mount: external mount: argv[3] = “-v” mount: external mount: argv[4] = “-o” mount: external mount: argv[5] = “rw,nolock,vers=3” mount.nfs: timeout set for Wed Aug 8 17:23:45 2018 mount.nfs: trying text-based options ‘nolock,vers=3,addr=::1’ mount.nfs: prog 100003, trying vers=3, prot=6 mount.nfs: portmap query retrying: RPC: Unable to receive mount.nfs: prog 100003, trying vers=3, prot=17 mount.nfs: portmap query failed: RPC: Unable to receive - Connection refused mount.nfs: trying text-based options ‘nolock,vers=3,addr=127.0.0.1’ mount.nfs: prog 100003, trying vers=3, prot=6 mount.nfs: trying 127.0.0.1 prog 100003 vers 3 prot TCP port 2049 mount.nfs: prog 100005, trying vers=3, prot=17 mount.nfs: trying 127.0.0.1 prog 100005 vers 3 prot UDP port 4242 mount.nfs: mount(2): Input/output error mount.nfs: mount system call failed How to resolve the above error while client mounting even on the same host?