I have a problem with NFS that I can't start to resolve. All servers are
CentOS 5 servers. One server exports a directory and two others mount
it. Simple so far.
A file is created on the server, and the two nfs clients do an "ls -al"
and get a common (meaning the same) result as the server. Over the
course of a day, and after the file on the server has been modified on
the server, the results of the "ls -al" show the original common result
on the two clients, and an obviously different result on the server. So
I figure it's some kind of caching problem. But I figure it's a server
caching problem.
I next go to one of the clients and "cat" the file, and then do another
"ls -al". Now the server and this client agree on the file attributes,
but not on the second client which shows the original wrong result
still. So now I think it's a client caching problem.
Can anyone explain the above situation and perhaps some settings that
will resolve this without requiring the nfs client to open the file in
some way before it gets the proper file attributes?
"nfsstat -m" of the client returns the following:
Flags:
rw,vers=3,rsize=32768,wsize=32768,acregmax=3,acdirmin=3,acdirmax=3,hard,
intr,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.0.12.152
Thanks for any help.
Steve Campbell
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