[Samba] winbind causing huge timeouts/delays since 4.8

[Ralph Böhme]

Am 24.02.2019 um 12:46 schrieb Rowland Penny via samba <samba at lists.samba.org>:
> Seen where ? and how ?

one problem is that, by design, as a domain member, it makes us behave different compared to a Windows system. Hic sunt dracones.

Another thing that a customer has just been bitten by, was a subtle bug in winbindd's idmap cache that resulted in all xid2sid requests going through the idmap backend, iow winbindd issued LDAP requests. With a few thousand users, things came to a grinding halt.

https://bugzilla.samba.org/show_bug.cgi?id=13802

Patch just landed upstream.

-slow