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Samba - prevent locking of selected files over network?

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Old 07-14-2009
Samba - prevent locking of selected files over network?
I have a samba server which is serving a mixture of files. One main application uses a data file and creates a temporary working execution file at startup and holds that temp execution file open for the duration of the program's execution (but doesn't use the file at all after initial startup).

The problem is when a second user wants to run the application (and they all do) they cannot create/replace the temp file because it is file locked over the network by the other running copy of the application, despite the application not using it any more. The application is a long running program, we're talking hours at a time.

This results in us having to remove the file from the unix file system manually at user request so the next user using the application against the share succeeds in creating the temp file and starting up.

So the question is, is it possible to selectively disable file locking over the network in samba (preferably by regex)?
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LEARN ABOUT CENTOS

masktest

MASKTEST(1)							    Test Suite							       MASKTEST(1)

NAME

       masktest - Find differences in wildcard matching between Samba's implementation and that of a remote server.

SYNOPSIS

       masktest {//server/share} [-U user%pass] [-d debuglevel] [-W workgroup] [-n numloops] [-s seed] [-a] [-E] [-M max protocol] [-f filechars]
		[-m maskchars] [-v]

DESCRIPTION

       masktest is a utility for detecting differences in behaviour between Samba's own implementation and that of a remote server. It will run
       generate random filenames/masks and check if these match the same files they do on the remote file as they do on the local server. It will
       display any differences it finds.

       This utility is used by the Samba team to find differences in behaviour between Samba and Windows servers.

OPTIONS

       -U user%pass
	   Specify the user and password to use when logging on on the shares. This parameter can be specified twice (once for the first server,
	   once for the second).

       -s seed
	   Seed the random number generator with the specified value.

       -n numops
	   Set the number of operations to perform.

       -a
	   Print the operations that are performed.

       -M max_protocol
	   Maximum protocol to use.

       -f
	   Specify characters that can be used when generating file names. Default: abcdefghijklm.

       -E
	   Abort when difference in behaviour is found.

       -m maskchars
	   Specify characters used for wildcards.

       -v
	   Be verbose

VERSION

       This man page is correct for version 4.0 of the Samba suite.

SEE ALSO

       Samba

AUTHOR

       This utility is part of the Samba[1] suite, which is developed by the global Samba Team[2].

       masktest was written by Andrew Tridgell.

       This manpage was written by Jelmer Vernooij.

NOTES

	1. Samba
	   http://www.samba.org/

	2. Samba Team
	   http://www.samba.org/samba/team/

Samba 4.0							    06/17/2014							       MASKTEST(1)