Anyone aware of any client-side NFS caching problems with Alpha or HP700 boxes?
We have seen quite a similar problem, about year and a half back, with our HP nfs clients (and I believe the Digitals too). The symptom was, a prog creats a new file, closes it and tries to open() the very same file; but fails "no such file.." When this happens I can log on to a different HP nfs client and the new file is there indeed. I used the brute force approach. Added "-noac" to all my NFS mounts! Never checked to see if any of the 100+ HP-UX 10.2 patches installed on the system since then fixed it or not.
I am open for any other "proper" solution(s).
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From: "Todd C. Merrill" tmerrill@mathworks.com Date: Tue, 16 Mar 1999 17:42:45 -0500 (EST) Subject: filer NFS to hp700 or alpha: client cache problem? To: toasters@mathworks.com Reply-To: "Todd C. Merrill" tmerrill@mathworks.com
We haven't narrowed down the problem entirely yet, but I'd thought I'd ask anyway....
During a linking stage, in linking a bunch of .o files into a library .a, the linker will grab about 2/3 of the files in a directory into the archive, and that's it. A subsequent `rm` of *.o sometimes removes only those exact 2/3 files, sometimes removes all of them, even though the archive only has 2/3 of them in it.
It seems as if the directory inode is only showing the oldest 2/3 of the files, and depending on how long it takes the `ar` and `rm` commands to execute, removes 2/3 or all of the files.
I don't suspect it's the filer; watching an `ls` of the directory from another machine (Solaris) shows all the files there. There are only about 150 .o files to archive.
Anyone aware of any client-side NFS caching problems with Alpha or HP700 boxes? The HP is running HPUX10.20 and appears to be using only NFS V2; the alpha is running Digital UNIX V4.0D and appears to be using only V3. (NFS version from `nfsstat -h hostname` on the filer.) The filer is set nfs.tcp.enable off, NetApp Release 5.2.1.
Until next time...
Todd C. Merrill The Mathworks, Inc. 508-647-7792 24 Prime Park Way, Natick, MA 01760-1500 508-647-7012 FAX tmerrill@mathworks.com http://www.mathworks.com
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---philip thomas