技術標籤：Linux雜談linux

解決：clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)

實驗環境：centos7。
實驗目的：NFS 儲存部署。

[[email protected] ~]# showmount -e 192.168.10.132
clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)

• 開啟nfs服務

systemctl start rpcbind nfs-server
 

• 檢視部署了nfs服務的伺服器介面（前提兩臺主機可以ping通）

[[email protected] ~]# rpcinfo -p 192.168.10.132
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  35065  status
    100024    1   tcp  42556  status
    100005    1   udp  20048  mountd
    100005    1   tcp  20048  mountd
    100005    2   udp  20048  mountd
    100005    2   tcp  20048  mountd
    100005    3   udp  20048  mountd
    100005    3   tcp  20048  mountd
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100227    3   tcp   2049  nfs_acl
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100227    3   udp   2049  nfs_acl
    100021    1   udp  42203  nlockmgr
    100021    3   udp  42203  nlockmgr
    100021    4   udp  42203  nlockmgr
    100021    1   tcp  37289  nlockmgr
    100021    3   tcp  37289  nlockmgr
    100021    4   tcp  37289  nlockmgr
 

• 若這時候，還是一樣的報錯

[[email protected] ~]# showmount -e 192.168.10.132
clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)

• 檢視環境伺服器的防火牆

[[email protected] ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (
 
/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: active (running) since 三 2020-12-23 06:28:18 UTC; 2h 8min ago
     Docs: man:firewalld(1)
 Main PID: 1013 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─1013 /usr/bin/python2 -Es /usr/sbin/firewalld --nofork --nopid

12月 23 06:28:18 ovirt-node systemd[1]: Starting firewalld - dynamic firewa....
12月 23 06:28:18 ovirt-node systemd[1]: Started firewalld - dynamic firewal....
12月 23 06:28:19 ovirt-node firewalld[1013]: WARNING: AllowZoneDrifting is ....
12月 23 08:00:26 ovirt-node firewalld[1013]: WARNING: AllowZoneDrifting is ....
Hint: Some lines were ellipsized, use -l to show in full.

• 關閉防火牆

[[email protected] ~]# systemctl stop firewalld
[[email protected] ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:firewalld(1)

12月 23 06:28:18 ovirt-node systemd[1]: Starting firewalld - dynamic firewa....
12月 23 06:28:18 ovirt-node systemd[1]: Started firewalld - dynamic firewal....
12月 23 06:28:19 ovirt-node firewalld[1013]: WARNING: AllowZoneDrifting is ....
12月 23 08:00:26 ovirt-node firewalld[1013]: WARNING: AllowZoneDrifting is ....
12月 23 08:37:27 ovirt-node systemd[1]: Stopping firewalld - dynamic firewa....
12月 23 08:37:28 ovirt-node systemd[1]: Stopped firewalld - dynamic firewal....
Hint: Some lines were ellipsized, use -l to show in full.

• 檢測

[[email protected] ~]# showmount -e 192.168.10.132
Export list for 192.168.10.132:
/var/nfs/iso       *
/var/nfs/vmstorage *

• 與部署環境的伺服器相比

[[email protected] ~]# exportfs -avr
exporting *:/var/nfs/iso
exporting *:/var/nfs/vmstorage
[[email protected] ~]#

• 這時我們的NFS 儲存部署報錯就解決了。