🚀 go-pugleaf

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Juergen Goetz                    Tel: 049-(0)9127-951304
iSi-Systems GmbH, Germany        Fax: 049-(0)9127-951305
http://www.isi-systems.de  
mailto:goetz@isi-systems.de

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Hi,

i have a strange problem with NFSD/MOUNTD (so do i think) on my computers.

The situation is:

1:
5 PCs connected via ethernet, 4 as clients 1 as server (to hold data on the
large HD.
The 4 clients are named client1 to client4 and do heavily write data into
many files each (data now is about 1.6 GB for the four clients, with about
300 files written from each client with some files larger than 50 MB).

2:
on the server /etc/exports looks like
client* /clients/data (rw)

3:
the sub-directories on the server are divided in
/clients/data/client1/.....
/clients/data/client2/.....
/clients/data/client3/.....
/clients/data/client4/.....

4:
on all PCs Linux kernel 1.2.13 is running. I cant / do not want to change the
version, because i have rather old software needing static libs and progs.
Really i cant change :-(.

5:
the clients mount to the server with

mount -t nfs -o rsize=8192,wsize=8192,soft,retry=100,noac,intr server:/clients/data/client[x] /mydata

6:
there is a prog installed on the server, which strips off older lines from
the log-files to avoid HD-overflow. This is done by moving each single file
to /tmp, throwing old lines away and moving the resulting file back to
/clients/data/client[x]/.....
The deleting program is involved by a script, which does a "sync;sync" before
and after calling the deleting process.
While deleting the log-files the 4 clients still continue writing to the server.

Now what happens:

After the deleting program / script running a while the four clients cant write
to the server any more, hanging somehow. The writing process on each client does
not work anymore, although mounted with "soft" option.
You can "ping" to the server, but not "telnet" and there is no possibility to
work on the server, because keyboard-input is not accepted. The are no entries
on the server in .../messages or ..../syslog.

I cant help myself.

Perhaps somebody knows what to do / try.

Would by nice to EMAIL me.
goetz@isi-systems.de

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