[Samba] samba-4.5.10 member server: issues around locks

[Stefan G. Weichinger]

(new thread, same environment)

Clients get thrown out of their software from time to time because of
issues with some ISAM db files (afai understand).

They access customer-related files and some DAT-file gets locked by the
software.

I tried to exclude that specific filename from locking:

veto oplock files = /BL6F.DAT/

Unfortunately that wasn't enough.

I now set for that share:

level2 oplocks = No
oplocks = No

and wait for feedback if that happens again.

* I assume the client has to reconnect, "killall -HUP" seems not to
change that behavior for existing connections?

* Is there a recommended best practice to find the correct level of
locking for a share? What to disable first ... etc ?

* I run loglevel 3 and increased log file size to maybe catch such a
dropped connection issue.