File locks when restarting smb

[Simon Allenby]

Hi,

Is there a known problem with file locks when Samba restarts?

I have several servers happily running Samba on RH Linux, and several hundred clients running M$ Win9x.
There are always a large number of open files, and I am currently migrating the data off several NT servers and
onto the Samba ones. This has meant changing the smb.conf file on a regular basis.

I am restarting Samba using "/etc/rc.d/rc5.d/K35smb restart"

If a user has a file open, with read-write permissions, and then Samba is restarted, these permissions are lost.
The first Windows client still thinks it has RW permissions on the file, however at this point a second user could open the same file, gaining the permissions. The first user would then not be able to save the file (correctly IMO) even though Word/Excel thinks it can. If the second user changes the file, and saves and closes it, the lock is removed, and the first user is free to overwrite the file again (losing the second user's changes). Worse still, on several recent occasions, the file has corrupted on the server, during saves after a Samba restart. This predominently happens in Excel, although I believe it has happened in Word as well.

Should/could Samba save it's open locks, and re-read them under a restart (I appreciate that this wouldn't be desired all of the time), or is there another way of getting Samba to re-read the smb.conf and setting up new shares without killing all of the active connections and therefore locks?

Your help is greatly appreciated.

Thanks in advance,


Simon

-------------------------------------------------------------
Simon Allenby - IT - Project Telecom plc
email - simona at projtel.co.uk
Direct line 01636 615200


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