samba - May 2018 - How to survive from connection loss with durable file handle

Hi All,

I have configured samba on RHEL 7.4 with samba-4.6.6. I have 2 NICs
configured on this machine. To test durable file handle functionality I
mounted the samba share on windows 10 machine and copied video file and
start playing it. While video was playing, from linux machine I did ifdown
and ifup of NIC, duration of down and up is 15/20 sec, but observed that
video stopped playing and connection/session is broken during this time.

As per information which I gather after search on google, with durable file
handle feature of samba, application can survive with short network
disconnect.  I did the required setting in smb.conf file which require to
enable the durable file handle.

i.e. kernel oplocks = no, kernel share modes = no,  posix locking = no and
durable handles = yes

Can someone guide me for how to achieve the uninterrupted IO? Do I need to
do any setting for this on samba server side or client side?

Regards,
Sandeep Jakka.

Can someone please help.

On Sat, May 12, 2018 at 4:27 PM, Sandeep Jakka <sandeepsjakka at
gmail.com>
wrote:
> Hi All,
>
> I have configured samba on RHEL 7.4 with samba-4.6.6. I have 2 NICs
> configured on this machine. To test durable file handle functionality I
> mounted the samba share on windows 10 machine and copied video file and
> start playing it. While video was playing, from linux machine I did ifdown
> and ifup of NIC, duration of down and up is 15/20 sec, but observed that
> video stopped playing and connection/session is broken during this time.
>
> As per information which I gather after search on google, with durable
> file handle feature of samba, application can survive with short network
> disconnect.  I did the required setting in smb.conf file which require to
> enable the durable file handle.
>
> i.e. kernel oplocks = no, kernel share modes = no,  posix locking = no
> and durable handles = yes
>
> Can someone guide me for how to achieve the uninterrupted IO? Do I need to
> do any setting for this on samba server side or client side?
>
> Regards,
> Sandeep Jakka.
>
>