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[Samba] GID range full!!




Twice this week I had a Domain Member Server "crash"

A week ago I saw errors like this in log.winbindd-idmap:

[2017/11/27 11:25:02.768090,  1]
../source3/winbindd/idmap_tdb_common.c:140(idmap_tdb_common_allocate_id)
  Error allocating a new GID
[2017/11/27 11:25:02.768213,  1]
../source3/winbindd/idmap_tdb_common.c:68(idmap_tdb_common_allocate_id_action)
  Fatal Error: GID range full!! (max: 2999)

I increased this from 2999 to 9999:

	idmap config arbeitsgruppe:schema_mode = rfc2307
	idmap config arbeitsgruppe:range = 10000-9999999
	idmap config arbeitsgruppe:backend = ad
	idmap config * : range = 2000-9999
	idmap config * : backend = tdb

and restarted smbd/nmbd/winbindd

Today it crashed again, but without those lines:

[2017/11/27 11:25:02.768228,  1]
../source3/winbindd/idmap_tdb_common.c:140(idmap_tdb_common_allocate_id)
  Error allocating a new GID
[2017/11/27 11:26:43.632040,  1]
../source3/winbindd/winbindd.c:396(winbindd_sig_hup_handler)
  Reloading services after SIGHUP
[2017/12/04 11:50:31.642817,  0]
../source3/winbindd/winbindd.c:280(winbindd_sig_term_handler)
  Got sig[15] terminate (is_parent=0)
[2017/12/04 11:51:50.973272,  0]
../source3/winbindd/winbindd.c:280(winbindd_sig_term_handler)
  Got sig[15] terminate (is_parent=0)

Samba-4.6.11 btw

Hmm.

What does samba need >3000 IDs for, when we have around 40 users and
maybe 15 groups in ADS there?

Can someone explain?

How to maybe clean that up, get rid of wrong ids or whatever is needed here?

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