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Problem with nfs exports between 5.0.5 and 5.0.7

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Operating Systems SCO Problem with nfs exports between 5.0.5 and 5.0.7
# 1  
Old 02-07-2011
Question Problem with nfs exports between 5.0.5 and 5.0.7
Hello everyone!

I have two systems: an old SCO 5.0.5 Openserver (here's the uname -a output):
Code:
/# uname -a
SCO_SV munixela 3.2 5.0.5 i386

And a SCO 5.0.7 OpenServer (uname -a output):
Code:
/# uname -a
SCO_SV catedral 3.2 5.0.7 i386

I exported a Filesystem from the 5.0.7 machine, using the scoadmin program, and the first time I did, my Informix 4 SE old application was able to access the data in the exported filesystem from the 5.0.5 server (after mounting it of course). After a reboot, the filesystem was not available for the Informix 4 SE app anymore. I tried re-exporting the filesystem with different configurations, also, I modified the /etc/default/exports file to allow root access to the filesystem, all to no avail.

I can however "see" the filesystem, list its contents, and do all sorts of file I/O operations successfully, but it seems that the Informix 4 SE app for some reason can not "find" anything on it. I get an error message:
Code:
Program stopped at "man0340f.4gl", line number 17.
SQL statement error number -329.
Database not found or no system permission.
SYSTEM error number -45.
Operation not supported on socket

Which the documentation says is caused due to an OS problem described in the message itself ( .... Smilie). The database IS on the filesystem, and has all the necessary permissions.

Could you please help me find a solution here? Thank you in advance for any and all help.
# 2  
Old 02-07-2011
Does this OS have truss/tusc/strace, that you can find the call that got errno 45? My errno.h says 45 is deadlock, so it might be refusing flock() calls. Locking on NFS can be a problem area.
# 3  
Old 02-07-2011
"after a reboot" Which of the machines (or both) did you re-start.
# 4  
Old 02-07-2011
Quote:
Originally Posted by jgt
"after a reboot" Which of the machines (or both) did you re-start.
The 5.0.7 machine.

---------- Post updated at 12:38 PM ---------- Previous update was at 12:31 PM ----------

Quote:
Originally Posted by DGPickett
Does this OS have truss/tusc/strace, that you can find the call that got errno 45? My errno.h says 45 is deadlock, so it might be refusing flock() calls. Locking on NFS can be a problem area.
It has strace ... problem here is that to be honest I'm lost as to how to use it or finding the correct stream module to query Smilie

However, this deadlock thing seems logical, meaning I found on the manpages that nfs can not work with locks. Hence the question: How could I get it to work as the first time I mounted the remote fs on the 5.0.5 machine since no different configs were made? ...
# 5  
Old 02-07-2011
Is there a tcp/ip interface to this DB? You could run it client-server.
# 6  
Old 02-08-2011
Is there a start up script that has not been run? Sometimes people forget to put the script in /etc/rc2.d and when the system is booted so infrequently the process isn't started.
# 7  
Old 02-14-2011
Quote:
Originally Posted by DGPickett
Is there a tcp/ip interface to this DB? You could run it client-server.
No, it is an old Informix 4 SE database, no TCP/IP port is available.
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