[Samba] winbind seems to hang when the DC goes down instead of switching to the other available DC

[Marco Gaiarin]

Mandi! Andrea Cucciarre' via samba
  In chel di` si favelave...

> I'm running Samba 4.9.5 as domain member, when I bring down the current
> Window DC (10.50.50.187) the winbind seems to hang instead of switching to
> the other available DC (10.50.50.25)

I'm experimenting the exact behaviour, using 4.8.12-1~deb9 as DM and
samba 4.5.16+nmu-1.1~deb8 as DC.

When i reboot a DC, and winbind is currently connected to that DC,
winbind for a little amount of time respond 'user not found'.


The strange things is exactly whay you say: seems that winbind 'stall'
until the (rebooting) DC come back, then switch DC; so if, i have to
reboot all DC, i trigger this n-times...

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