NFS无法启动解决方式

今天一台挂载nfs磁盘的服务器出现异常，数据不能写入，执行 df -h 卡住不动。

登录nfs server查看发现nfs为启动。

[root@server10-13 web]# exportfs 
[root@server10-13 web]# ps -ef|grep nfs
root      5340  5151  0 14:30 pts/1    00:00:00 grep nfs

执行启动nfs，报错信息如下：

[root@server10-13 web]# service nfs start
Starting NFS services:                                     [  OK  ]
Starting NFS quotas: Cannot register service: RPC: Unable to receive; errno = Connection refused
rpc.rquotad: unable to register (RQUOTAPROG, RQUOTAVERS, udp).
                                                           [FAILED]
Starting NFS mountd: rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
                                                           [FAILED]
Starting NFS daemon: rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused)
rpc.nfsd: address family inet6 not supported by protocol TCP
rpc.nfsd: unable to set any sockets for nfsd
                                                           [FAILED]

通过错误信息判断可能是由于rpc导致的  ，具体解决方式

[root@server10-13 web]# /etc/init.d/rpcbind restart
Stopping rpcbind:                                          [FAILED]
Starting rpcbind:                                          [  OK  ]
[root@server10-13 web]#  service nfslock start
Starting NFS statd:                                        [  OK  ]
[root@server10-13 web]# service nfs start
Starting NFS services:                                     [  OK  ]
Starting NFS quotas:                                       [  OK  ]
Starting NFS mountd: rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
                                                           [  OK  ]
Starting NFS daemon: rpc.nfsd: address family inet6 not supported by protocol TCP
                                                           [  OK  ]
Starting RPC idmapd:                                       [  OK  ]

再次查看nfs信息

[root@server10-13 web]# exportfs 
/home/web/crawler
		192.168.10.0/24

Client 等待2分钟后，磁盘恢复正常。