44937 – ValueError while adding third MAC with same IP address ("min() arg is an empty sequence")

Bug 44937 - ValueError while adding third MAC with same IP address ("min() arg is an empty sequence")

Summary: ValueError while adding third MAC with same IP address ("min() arg is an empt...

Status:	CLOSED FIXED

Alias:	None

Product:	UCS
Classification:	Unclassified
Component:	UMC - DHCP
Version:	UCS 4.4
Hardware:	Other Linux

Importance:	P5 normal
Target Milestone:	UCS 4.4-2-errata
Assignee:	Florian Best
QA Contact:	Philipp Hahn

URL:
Keywords:

Duplicates (1):	49752 (view as bug list)
Depends on:
Blocks:

Reported:	2017-07-05 08:55 CEST by Florian Best
Modified:	2019-10-16 14:11 CEST (History)
CC List:	9 users (show)

See Also:	35612 16923
What kind of report is it?:	Bug Report
What type of bug is this?:	7: Crash: Bug causes crash or data loss
Who will be affected by this bug?:	3: Will affect average number of installed domains
How will those affected feel about the bug?:	2: A Pain – users won’t like this once they notice it
User Pain:	0.240
Enterprise Customer affected?:	Yes
School Customer affected?:	Yes
ISV affected?:
Waiting Support:
Flags outvoted (downgraded) after PO Review:
Ticket number:	2019022221000498, 2019012121000223, 2019090321000191, 2018082721000569, 2018042721001128, 2018041321001092, 2018040721001031, 2018042721000558, 2018031621001052, 2018021521001118, 2017070421000669, 2017090921000067, 2017112121000682, 2018101921000561
Bug group (optional):	External feedback
Customer ID:
Max CVSS v3 score:

Flags:	best: Patch_Available+

Attachments
patch (1.01 KB, patch) 2019-04-17 17:29 CEST, Florian Best	Details \| Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Florian Best

2017-07-05 08:55:07 CEST

Version: 4.2-1 errata76 (Lesum)

Die Ausführung des Kommandos udm/put computers/computer ist fehlgeschlagen:

Traceback (most recent call last):
  File "%PY2.7%/notifier/threads.py", line 82, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 409, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 86, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 457, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 318, in modify
    return self._modify(modify_childs, ignore_license=ignore_license)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 806, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/macos.py", line 496, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1900, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1361, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 1 Florian Best

2017-09-22 18:16:12 CEST

Version: 4.2-1 errata159 (Lesum)

Remark: Es können keine DHCP-Einträge mehr zu Rechnern hinzugefügt werden

Comment 2 Johannes Keiser

2017-11-28 18:18:39 CET

Reported again: Version: 4.2-2 errata219 (Lesum)

Comment 3 Johannes Keiser

2018-02-16 13:36:13 CET

Reported again: Version: 4.2-3 errata305 (Lesum)

Remark: Trat beim hinzufügen eines ip-managed clients mit drei MAC adressen die alle auf die selbe IP laufen sollen auf.

Interner Server-Fehler in "udm/add (computers/computer)".
Request: udm/add (computers/computer)

Traceback (most recent call last):
  File "%PY2.7%/notifier/threads.py", line 82, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 369, in _thread
    dn = module.create(properties, container=options.get('container'), superordinate=options.get('superordinate'))
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 82, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 393, in create
    obj.create()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 381, in create
    dn = self._create(response=response, serverctrls=serverctrls)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1038, in _create
    self._ldap_post_create()
  File "%PY2.7%/univention/admin/handlers/computers/ipmanagedclient.py", line 262, in _ldap_post_create
    univention.admin.handlers.simpleComputer._ldap_post_create(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2563, in _ldap_post_create
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1655, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 4 Johannes Keiser

2018-04-13 19:21:01 CEST

Reported again: Version: 4.2-3 errata312 (Lesum)

Comment 5 Johannes Keiser

2018-04-27 18:55:43 CEST

Reported again:
Version: 4.2-3 errata342 (Lesum)
Version: 4.3-0 errata11 (Neustadt)

Comment 6 Johannes Keiser

2018-04-27 20:19:24 CEST

Reported again: Version: 4.2-3 errata313 (Lesum)

Remark: Bearbeiten des Eintrags zu System nc407-muc
-> Fehlermeldung.
-> löschen dieses Eintrags.
-> neuanlegen dieses Eintrags.
-> Fehler bleibt bestehen!

Comment 7 Johannes Keiser

2018-05-02 16:48:18 CEST

Reported again: Version: 4.3-0 errata22 (Neustadt)

Comment 8 Johannes Keiser

2018-10-04 12:29:38 CEST

Reported again: Version: 4.3-1 errata202 (Neustadt) - UCS@school 4.3 v4

Remark: Änderung der MAC-Adresse

Interner Server-Fehler in "udm/put (computers/computer)".
Request: udm/put (computers/computer)

Traceback (most recent call last):
  File "%PY2.7%/notifier/threads.py", line 82, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 407, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 83, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 454, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 582, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1223, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/windows.py", line 512, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2400, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1861, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 9 Johannes Keiser

2018-10-04 12:30:21 CEST

Reported again:  Version: 4.3-2 errata237 (Neustadt)

Interner Server-Fehler in "udm/put (computers/computer)".
Request: udm/put (computers/computer)

  File "%PY2.7%/notifier/threads.py", line 78, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 407, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 83, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 454, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 582, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1223, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/windows.py", line 512, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2400, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1861, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 10 Daniel Tröder

2018-10-22 08:25:13 CEST

>     n = min(set(range(max(taken) + 1)) - taken) if taken else 0
> ValueError: min() arg is an empty sequence

This can happen in only 1 case: taken = set([0])

→ min(set(range(max(0) + 1)) - {0})
→ min(set(range(1)) - {0})
→ min(set([0]) - {0})
→ min({0} - {0})
→ min(set())
→ ValueError: min() arg is an empty sequence

taken is created from a list of hostnames of the form '.*_uv(\d+)'. So if only 1 host exists with a name '*_uv0', this happens.

Comment 11 Johannes Keiser

2019-01-31 13:57:16 CET

Reported again: Version: 4.3-2 errata407 (Neustadt)

Remark: Fehlermeldung erscheint beim hinzufügen einer zusätzlichen Mac-Adresse mit DNS Fwd und DNS Rev + DHCP Eintrag.

Interner Server-Fehler in "udm/put (computers/computer)".
Request: udm/put (computers/computer)

  File "%PY2.7%/notifier/threads.py", line 78, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 431, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 84, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 455, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 583, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1224, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/linux.py", line 494, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2444, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1905, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Role: domaincontroller_master

Comment 12 Johannes Keiser

2019-03-22 15:52:41 CET

Reported again: Version: 4.3-3 errata428 (Neustadt)

Remark: Diesen Fehler erhalte ich, wenn ich bei einem Rechnerkonto mehrere Netzwerk-Schnittstellen eintragen will.

Interner Server-Fehler in "udm/put (computers/computer)".
Request: udm/put (computers/computer)

  File "%PY2.7%/notifier/threads.py", line 78, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 431, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 84, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 455, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 583, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1224, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/windows.py", line 512, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2444, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1905, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Role: domaincontroller_master

Comment 13 Florian Best

2019-04-17 16:54:48 CEST

Reproducible:

DN: cn=test,cn=computers,dc=dev,dc=local
  description: None
  dhcpEntryZone: cn=asdf,cn=dhcp,dc=dev,dc=local 10.200.27.3 11:22:33:44:66:55
  dhcpEntryZone: cn=asdf,cn=dhcp,dc=dev,dc=local 10.200.27.2 11:22:33:44:66:44
  dnsEntryZoneForward: zoneName=dev.local,cn=dns,dc=dev,dc=local 10.200.27.2
  dnsEntryZoneReverse: zoneName=27.200.10.in-addr.arpa,cn=dns,dc=dev,dc=local 10.200.27.2
  domain: dev.local
  fqdn: test.dev.local
  ip: 10.200.27.4
  ip: 10.200.27.3
  ip: 10.200.27.2
  mac: 11:22:33:44:66:55
  mac: 11:22:33:44:66:66
  mac: 11:22:33:44:66:44
  name: test
  network: cn=default,cn=networks,dc=dev,dc=local

# udm computers/ipmanagedclient modify --dn cn=test,cn=computers,dc=dev,dc=local --append dhcpEntryZone='"cn=asdf,cn=dhcp,dc=dev,dc=local" "10.200.27.2" "11:22:33:44:66:44"' --append dhcpEntryZone='"cn=asdf,cn=dhcp,dc=dev,dc=local" "10.200.27.3" "11:22:33:44:66:55"' --append dhcpEntryZone='"cn=asdf,cn=dhcp,dc=dev,dc=local" "10.200.27.4" "11:22:33:44:66:66"'
Traceback (most recent call last):
  File "/usr/share/univention-directory-manager-tools/univention-cli-server", line 218, in doit
    output = univention.admincli.admin.doit(arglist)
  File "/usr/lib/pymodules/python2.7/univention/admincli/admin.py", line 408, in doit
    out = _doit(arglist)
  File "/usr/lib/pymodules/python2.7/univention/admincli/admin.py", line 904, in _doit
    dn = object.modify()
  File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 635, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 1309, in _modify
    self._ldap_post_modify()
  File "/usr/lib/pymodules/python2.7/univention/admin/handlers/computers/ipmanagedclient.py", line 272, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 2591, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 2052, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 14 Florian Best

2019-04-17 17:04:03 CEST

(Pdb) taken
set([0])
(Pdb) results
['cn=test,cn=asdf,cn=dhcp,dc=dev,dc=local', 'cn=test_uv0,cn=asdf,cn=dhcp,dc=dev,dc=local']

Comment 15 Florian Best

2019-04-17 17:28:08 CEST

Added a test case which reproduces the problem, tag=SKIP.

ucs-test (9.0.2-37)
ba9ac52e195f | Bug #44937: 66_udm-computers/57_multiple_dhcp_entry_zones

Comment 16 Florian Best

2019-04-17 17:29:09 CEST

Created attachment 9980 [details]
patch

Comment 17 Lukas Zumvorde

2019-04-17 18:23:10 CEST

Version 4.3-3 errata 477 (Neustadt)

Das Anlegen eines Rechnerobjekts mit 3 DHCP Einträgen gibt folgenden Traceback:

Interner Server-Fehler in "udm/add (computers/computer)".
Request: udm/add (computers/computer)

File "/usr/lib/pymodules/python2.7/notifier/threads.py", line 78, in _run
tmp = self._function()
File "/usr/lib/pymodules/python2.7/notifier/__init__.py", line 104, in _call_
return self._function( *tmp, *self._kwargs )
File "/usr/lib/pymodules/python2.7/univention/management/console/modules/udm/__init__.py", line 393, in _thread
dn = module.create(properties, container=options.get('container'), superordinate=options.get('superordinate'))
File "/usr/lib/pymodules/python2.7/univention/management/console/modules/udm/udm_ldap.py", line 84, in _decorated
return method(*args, **kwargs)
File "/usr/lib/pymodules/python2.7/univention/management/console/ldap.py", line 143, in _decorated
result = func(*args, **kwargs)
File "/usr/lib/pymodules/python2.7/univention/management/console/modules/udm/udm_ldap.py", line 395, in create
obj.create()
File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 539, in create
dn = self._create(response=response, serverctrls=serverctrls)
File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 1180, in _create
self._ldap_post_create()
File "/usr/lib/pymodules/python2.7/univention/admin/handlers/computers/ipmanagedclient.py", line 262, in _ldap_post_create
univention.admin.handlers.simpleComputer._ldap_post_create(self)
File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 2813, in _ldap_post_create
self.__modify_dhcp_object(dn, mac, ip=ip)
File "/usr/lib/pymodules/python2.7/univention/admin/handlers/__init__.py", line 1905, in _modify_dhcp_object
n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence


Ein Hotfix hat Abhilfe verschaft:

--- /usr/share/pyshared/univention/admin/handlers/__init__.old.py	2019-03-15 18:56:54.808000000 +0100
+++ /usr/share/pyshared/univention/admin/handlers/__init__.py	2019-03-15 18:56:58.600000000 +0100
@@ -2049,7 +2049,7 @@
 				univention.debug.debug(univention.debug.ADMIN, univention.debug.INFO, 'the host "%s" already has a dhcp object, so we search for the next free uv name' % (name))
 				RE = re.compile(r'cn=[^,]+_uv(\d+),')
 				taken = set(int(m.group(1)) for m in (RE.match(dn) for dn in results) if m)
-				n = min(set(range(max(taken) + 1)) - taken) if taken else 0
+				n = min(set(range(max(taken) + 2)) - taken) if taken else 0
 				name = '%s_uv%d' % (name, n)
 
 			dn = 'cn=%s,%s' % (escape_dn_chars(name), position)

Dies ist aber ohne weitere Überprüfung keine dauerhafte Lösung.

Comment 18 Robert Kaussow 2019-05-20 12:01:21 CEST

Will this issue be fixed in the near future?

Comment 19 Johannes Keiser

2019-05-28 12:05:10 CEST

Reported again: Version: 4.3-4 errata481 (Neustadt)
Ticket#2019052021000512

Interner Server-Fehler in "udm/add (computers/computer)".
Request: udm/add (computers/computer)

  File "%PY2.7%/notifier/threads.py", line 78, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 393, in _thread
    dn = module.create(properties, container=options.get('container'), superordinate=options.get('superordinate'))
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 84, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 395, in create
    obj.create()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 539, in create
    dn = self._create(response=response, serverctrls=serverctrls)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1180, in _create
    self._ldap_post_create()
  File "%PY2.7%/univention/admin/handlers/computers/windows.py", line 474, in _ldap_post_create
    univention.admin.handlers.simpleComputer._ldap_post_create(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2813, in _ldap_post_create
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1905, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 20 Johannes Keiser

2019-05-28 12:40:43 CEST

Reported again: Version: 4.4-0 errata51 (Blumenthal)
Ticket#2019041821000804

Interner Server-Fehler in "udm/put (computers/computer)".
Request: udm/put (computers/computer)

  File "%PY2.7%/notifier/threads.py", line 78, in _run
    tmp = self._function()
  File "%PY2.7%/notifier/__init__.py", line 104, in __call__
    return self._function( *tmp, **self._kwargs )
  File "%PY2.7%/univention/management/console/modules/udm/__init__.py", line 428, in _thread
    module.modify(properties)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 86, in _decorated
    return method(*args, **kwargs)
  File "%PY2.7%/univention/management/console/ldap.py", line 143, in _decorated
    result = func(*args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/udm/udm_ldap.py", line 612, in modify
    obj.modify()
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 635, in modify
    dn = self._modify(modify_childs, ignore_license=ignore_license, response=response)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 1309, in _modify
    self._ldap_post_modify()
  File "%PY2.7%/univention/admin/handlers/computers/__base.py", line 208, in _ldap_post_modify
    univention.admin.handlers.simpleComputer._ldap_post_modify(self)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2591, in _ldap_post_modify
    self.__modify_dhcp_object(dn, mac, ip=ip)
  File "%PY2.7%/univention/admin/handlers/__init__.py", line 2052, in __modify_dhcp_object
    n = min(set(range(max(taken) + 1)) - taken) if taken else 0
ValueError: min() arg is an empty sequence

Comment 21 Florian Best

2019-06-28 14:28:18 CEST

*** Bug 49752 has been marked as a duplicate of this bug. ***

Comment 22 Florian Best

2019-08-09 11:04:16 CEST

Again: Ticket #2019080921000412

Version: 4.3-4 errata552 (Neustadt)

Remark: nc407-muc war angelegt, wurde gelöscht. Neu anlegen schlug fehl mit o.a. Fehler.

Gefunden wurden mehrere weitere Objekte mit cn=nc407-muc. Diese Objekte wurden ebenfalls gelöscht. Trotzdem funktioniert neuanlegen des Objekts nicht!

Comment 23 Daniel Tröder

2019-08-09 11:32:47 CEST

(In reply to Florian Best from comment #22)
> Gefunden wurden mehrere weitere Objekte mit cn=nc407-muc. Diese Objekte
> wurden ebenfalls gelöscht. Trotzdem funktioniert neuanlegen des Objekts
> nicht!
uidNumber in temporary?

Comment 24 Florian Best

2019-08-09 11:39:34 CEST

(In reply to Daniel Tröder from comment #23)
> (In reply to Florian Best from comment #22)
> > Gefunden wurden mehrere weitere Objekte mit cn=nc407-muc. Diese Objekte
> > wurden ebenfalls gelöscht. Trotzdem funktioniert neuanlegen des Objekts
> > nicht!
> uidNumber in temporary?

The comment is probably unrelated to the problem. We should stick to the attached patch.

Comment 25 Christina Scheinig

2019-09-03 13:50:20 CEST

The customer needs the third MAC for laptops with docking stations.

Comment 26 Andreas Lemke 2019-09-29 15:57:04 CEST

Ich habe das selbe Problem.
Es tritt auf wenn eine dritte MAC Adresse zum DHCP Bereich hinzugefügt wird. Alle MAC Adressen bekommen die selbe IP bzw. eine dynamische IP.

Comment 27 Florian Best

2019-10-10 11:03:22 CEST

The patch has been applied:

ucs-test (9.0.3-78)
d45864e21c12 | Bug #44937: re enable test case

univention-directory-manager-modules (14.0.14-3)
9250e8b2febe | Bug #44937: fix DHCP assignment for computers with mutliple MAC addresses

ucs-test (9.0.2-37)
ba9ac52e195f | Bug #44937: 66_udm-computers/57_multiple_dhcp_entry_zones

univention-directory-manager-modules.yaml
9250e8b2febe | Bug #44937: fix DHCP assignment for computers with mutliple MAC addresses

Comment 28 Philipp Hahn

2019-10-10 13:33:04 CEST

OK: errata-announce -V --only univention-directory-manager-modules.yaml
FIXED: univention-directory-manager-modules.yaml

[4.4-2] d87b5de187 Bug #50288: univention-directory-manager-modules 14.0.14-3A~4.4.0.201910101102
 doc/errata/staging/univention-directory-manager-modules.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

OK: apt install {python-univention-directory-manager,python-univention-directory-manager-cli,univention-directory-manager-tools}=14.0.14-5A~4.4.0.201910101215
OK:
 pkill -f univention-cli-serve
 lb="$(ucr get ldap/base)"
 service="$(udm dhcp/service list|sed -ne 's/^DN: //p;T;q')"
 ip1='1.2.3.4' ip2='1.2.3.5' ip3='1.2.3.6'
 mac1='00:11:22:33:44:55' mac2='00:11:22:33:44:66' mac3='00:11:22:33:44:77'
 udm computers/linux create \
  --set name=bug44937\
  --append ip="$ip1" \
  --append ip="$ip2" \
  --append mac="$mac1" \
  --append mac="$mac2" \
  --append dhcpEntryZone="\"$service\" \"$ip1\" \"$mac1\"" \
  --append dhcpEntryZone="\"$service\" \"$ip2\" \"$mac2\""
 udm computers/linux modify \
  --dn "cn=bug44937,$lb" \
  --append ip="$ip3" \
  --append mac="$mac3" \
  --append dhcpEntryZone="\"$service\" \"$ip3\" \"$mac3\""
 udm dhcp/host list
 udm computers/linux remove --remove_referring \
  --dn "cn=bug44937,$lb"

Comment 29 Arvid Requate

2019-10-16 14:11:01 CEST

<http://errata.software-univention.de/ucs/4.4/306.html>