ServerA에서 디렉터리를 공유 /u001/app/oracle/FolderA하고 SeverB 아래에 설치하려고 했습니다./media
/etc/exportsServerA 파일의 내용
/u001/app/oracle/FolderA ServerB(rw,sync)
ServerB에 설치하려고 하면 ServerB에서 이 메시지가 나타납니다.
mount: mount to NFS server 'ServerA' failed: timed out (retrying).
mount: mount to NFS server 'ServerA' failed: timed out (retrying).
mount: mount to NFS server 'ServerA' failed: timed out (retrying).
mount: mount to NFS server 'ServerA' failed: timed out (retrying).
mount: mount to NFS server 'ServerA' failed: timed out (giving up).
rpcinfo -P산출:
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 953 status
100024 1 tcp 956 status
100011 1 udp 924 rquotad
100011 2 udp 924 rquotad
100011 1 tcp 927 rquotad
100011 2 tcp 927 rquotad
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100021 1 udp 13495 nlockmgr
100021 3 udp 13495 nlockmgr
100021 4 udp 13495 nlockmgr
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100021 1 tcp 15597 nlockmgr
100021 3 tcp 15597 nlockmgr
100021 4 tcp 15597 nlockmgr
100005 1 udp 938 mountd
100005 1 tcp 941 mountd
100005 2 udp 938 mountd
100005 2 tcp 941 mountd
100005 3 udp 938 mountd
100005 3 tcp 941 mountd
/var/log/messages:
Oct 28 17:16:21 kernel: nfsd: last server has exited
Oct 28 17:16:21 kernel: nfsd: unexporting all filesystems
Oct 28 17:16:22 kernel: NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
Oct 28 17:16:22 kernel: NFSD: starting 90-second grace period
Oct 28 17:17:28 mountd[4143]: Caught signal 15, un-registering and exiting.
Oct 28 17:17:29 kernel: nfsd: last server has exited
Oct 28 17:17:29 kernel: nfsd: unexporting all filesystems
Oct 28 17:17:29 kernel: NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
Oct 28 17:17:29 kernel: NFSD: starting 90-second grace period
Oct 28 17:21:15 kernel: FS-Cache: Loaded
어떤 도움이라도 좋을 것입니다 ...
답변1
ServerA/ServerB 대신 IP 주소를 사용해 보세요. ~에서RHEL 문서:
발췌
14.4.6. mount command fails with NFS server failed error.
mount command fails with following error:
mount: mount to NFS server '10.1.10.11' failed: timed out (retrying).
Perform one of the following to resolve this issue:
Disable name lookup requests from NFS server to a DNS server.
The NFS server attempts to authenticate NFS clients by performing a reverse DNS
lookup to match hostnames in the volume file with the client IP addresses. There
can be a situation where the NFS server either is not able to connect to the DNS
server or the DNS server is taking too long to responsd to DNS request. These
delays can result in delayed replies from the NFS server to the NFS client
resulting in the timeout error seen above.
NFS server provides a work-around that disables DNS requests, instead relying
only on the client IP addresses for authentication. The following option can be
added for successful mounting in such situations:
option rpc-auth.addr.namelookup off
따라서 오류 메시지에 따르면 서버가 호스트 이름으로 서로를 확인할 수 없는 문제인 것 같습니다.