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Full Discussion: NFS file/dir disappear issue
Operating Systems Solaris NFS file/dir disappear issue Post 71886 by motor98 on Monday 16th of May 2005 09:05:25 PM
Old 05-16-2005
NFS file/dir disappear issue

We have bunch of Sun Sparc workstations(solaris 7 & 8) connecting to a linux file server with NFS exports. Recently we upgraded our file server from fedora core1 to redhat enterprise linux 4. And since then we are experiencing a nightmare of file/dir missing. It happens randomly, couple of times every day, on almost all the workstations, and it happened on random directories. The workstations just think that those dirs doesn't exist. but actually on the server we can see those directories.

The weird thing is, the missing dir/file can automatically come back after like 30 minutes. or if we do a "ls -LR" from the server, the dir will reappear on the client side.

We don't have firewall in our intranet, and I have turned off SELinux on the redhat linux side. The clients/workstations are all permanently mounted those dirs, not automount.

We don't know if we need to change some parameters from either server side or client side. Any suggestion is highly welcomed.

Thanks,
motor98
 

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MOUNTD(8)						    BSD System Manager's Manual 						 MOUNTD(8)

NAME
mountd -- service remote NFS mount requests SYNOPSIS
/sbin/mountd [-nr] [exportsfile] DESCRIPTION
Mountd is the server for NFS mount requests from other client machines. Mountd listens for service requests at the port indicated in the NFS server specification; see Network File System Protocol Specification, RFC1094, Appendix A and NFS: Network File System Version 3 Protocol Specification, Appendix I. Options and operands available for mountd: -n The -n option allows non-root mount requests to be served. This should only be specified if there are clients such as PC's, that require it. -r The -r option allows mount RPCs requests for regular files to be served. Although this seems to violate the mount protocol specifi- cation, some diskless workstations do mount requests for their swapfiles and expect them to be regular files. Since a regular file cannot be specified in /etc/exports, the entire file system in which the swapfiles resides will have to be exported with the -alldirs flag. exportsfile The exportsfile argument specifies an alternate location for the exports file. When mountd is started, it loads the export host addresses and options into the kernel using the mount(2) system call. After changing the exports file, a hangup signal should be sent to the mountd daemon to get it to reload the export information. After sending the SIGHUP (kill -s HUP `cat /var/run/mountd.pid`), check the syslog output to see if mountd logged any parsing errors in the exports file. FILES
/etc/exports the list of exported filesystems /var/run/mountd.pid the pid of the currently running mountd SEE ALSO
nfsstat(1), exports(5), nfsd(8), portmap(8), showmount(8) HISTORY
The mountd utility first appeared in 4.4BSD. BSD
April 28, 1995 BSD
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