[Samba] cache_traverse_validate_fn: key length too large

Volker Lendecke Volker.Lendecke at SerNet.DE
Fri Mar 25 06:47:30 MDT 2011

On Fri, Mar 25, 2011 at 12:49:16PM +0100, Richard Smits wrote:
> Hello,
> We are currently installing Redhat v6, and came accross some weird
> behaviour from winbind. We are member of many groups in our AD. When we
> try to login with pam enabled access we get the following messages :
> --
> cache_traverse_validate_fn: key length too large: (1534) > (1024)
> or
> cache_traverse_validate_fn: key length too large: (4138) > (1024)
> --
> When we run winbind without cache "-n" the messages are gone, but then
> it is much slower.
> What does these messages mean ? Can someone explain this ?

Can you send us your winbindd_cache.tdb somehow? Please be
aware that winbindd_cache.tdb might contain sensitive
information, so it would not be a good idea to upload it
somewhere. Either send it to possibly me in private or open
a support case with RH to send it to their Samba developers.

With best regards,


SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen
phone: +49-551-370000-0, fax: +49-551-370000-9
AG Göttingen, HRB 2816, GF: Dr. Johannes Loxen

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