[17/Jun/2015:14:39:46 +0600] conn=237 op=93 ADD dn="cn=System: Manage
Host Keytab,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc=ru"
It is also possible this entry on affected servers was previously
duplicated and not correctly managed to delete (more recent dup was
deleted).
Is there any natural way to fix such issues? Maybe ipa-replica-manage
force-sync, or ipa-replica-manage re-initialize on affected site
servers from normal servers could help?
WBR,
Alexander Frolushkin
Cell +79232508764
Work +79232507764
*From:*thierry bordaz [mailto:[email protected]]
*Sent:* Wednesday, June 17, 2015 3:15 PM
*To:* Alexander Frolushkin (SIB)
*Cc:* 'Ludwig Krispenz'; [email protected]
*Subject:* Re: [Freeipa-users] replication conflicts
Hello Alexander,
How did you initialize that new replica 26.
Either 'cn=System: Manage Host
Keytab,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc=ru' was not part
of the total init data, or a DEL of that entry happened on replica 26
(before a new ADD) but the DEL was not replicated to replica12.
Would you check in replica26 access logs if that entry was deleted ?
thanks
theirry
On 06/17/2015 11:03 AM, Alexander Frolushkin wrote:
This is correct, thank you for understanding and for helping!
Replica with id 26 was created today, this is our new server
which was included in domain just a few hours ago. Looks like
this dup came right after this new replica creation.
WBR,
Alexander Frolushkin
Cell +79232508764
Work +79232507764
*From:*Ludwig Krispenz [mailto:[email protected]]
*Sent:* Wednesday, June 17, 2015 2:58 PM
*To:* Alexander Frolushkin (SIB)
*Cc:* [email protected] <mailto:[email protected]>
*Subject:* Re: [Freeipa-users] replication conflicts
Hi,
you did send the data directly to me, maybe not wanting to share
them to everyone. I'll continue discussion here, trying to be
careful.
The "good" entry was created in April on replica 12 "0x0c"
createTimestamp;vucsn-5524d42b0067000c0000: 20150408070720Z
the "nsuniqueid" entry was created today on replica 26 "0x1a"
createTimestamp;vucsn-5580f3210000001a0000: 20150617040801Z
if the original entry would have existed on replica26 the new add
should have been rejected, if it was not there the question is why.
Do you have any additional info on replica 26, when was it
created, was it disconnected for some time ??
Ludwig
On 06/17/2015 08:13 AM, Alexander Frolushkin wrote:
Hello.
Another example. Today appeared on servers of different site.
Original LDIF:
# extended LDIF
#
# LDAPv3
# base <cn=System: Manage Host
Keytab,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc=ru> with
scope subtree
# filter: (objectclass=*)
# requesting: ALL
#
# System: Manage Host Keytab, permissions, pbac, unix.megafon.ru
dn: cn=System: Manage Host
Keytab,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc
=ru
ipaPermTargetFilter: (objectclass=ipahost)
ipaPermRight: write
ipaPermBindRuleType: permission
ipaPermissionType: V2
ipaPermissionType: MANAGED
ipaPermissionType: SYSTEM
cn: System: Manage Host Keytab
objectClass: ipapermission
objectClass: top
objectClass: groupofnames
objectClass: ipapermissionv2
member: cn=Host
Enrollment,cn=privileges,cn=pbac,dc=unix,dc=megafon,dc=ru
member: cn=Host
Administrators,cn=privileges,cn=pbac,dc=unix,dc=megafon,dc=ru
ipaPermDefaultAttr: krbprincipalkey
ipaPermDefaultAttr: krblastpwdchange
ipaPermLocation:
cn=computers,cn=accounts,dc=unix,dc=megafon,dc=ru
# search result
search: 2
result: 0 Success
# numResponses: 2
# numEntries: 1
Duplicate:
# extended LDIF
#
# LDAPv3
# base <cn=System: Manage Host
Keytab+nsuniqueid=708bba65-14a611e5-8a48fd19-df27ff01,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc=ru>
with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#
# System: Manage Host Keytab +
708bba65-14a611e5-8a48fd19-df27ff01, permissio
ns, pbac, unix.megafon.ru
dn: cn=System: Manage Host
Keytab+nsuniqueid=708bba65-14a611e5-8a48fd19-df27ff
01,cn=permissions,cn=pbac,dc=unix,dc=megafon,dc=ru
ipaPermTargetFilter: (objectclass=ipahost)
ipaPermRight: write
ipaPermBindRuleType: permission
ipaPermissionType: V2
ipaPermissionType: MANAGED
ipaPermissionType: SYSTEM
cn: System: Manage Host Keytab
objectClass: ipapermission
objectClass: top
objectClass: groupofnames
objectClass: ipapermissionv2
member: cn=Host
Enrollment,cn=privileges,cn=pbac,dc=unix,dc=megafon,dc=ru
member: cn=Host
Administrators,cn=privileges,cn=pbac,dc=unix,dc=megafon,dc=ru
ipaPermDefaultAttr: krbprincipalkey
ipaPermDefaultAttr: krblastpwdchange
ipaPermLocation:
cn=computers,cn=accounts,dc=unix,dc=megafon,dc=ru
# search result
search: 2
result: 0 Success
# numResponses: 2
# numEntries: 1
No other servers in IPA domain have such duplicates.
WBR,
Alexander Frolushkin
Cell +79232508764
Work +79232507764
*From:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]] *On Behalf Of
*Ludwig Krispenz
*Sent:* Tuesday, June 16, 2015 3:52 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [Freeipa-users] replication conflicts
On 06/16/2015 11:42 AM, Alexander Frolushkin wrote:
Hello.
Just to remind if somebody still not familiar with our
IPA installation J
We currently have 18 IPA servers in domain, on 8 sites in
different regions across the Russia.
And now, our new problem.
Regularly we getting a nsds5ReplConflict records on some
of our servers, very often on servers from specific site.
Usually it is simply a doubles and we can remove the
renamed change to get everything back. But why do we have
them at all?
May be someone could explain, how we can detect the cause
of this replication conflicts?
if you are talking about having two "duplicate" entries,
one: uid=xxxxx,<suffix>
one: nsuniqueid=nnnnnnnn+uid=xxxxx,<suffix>
these entries appear if the entry uid=xxxxx was added,
simultaneously, on two servers. I think this can happen if a
client tries to add an entry and if it doesn't get a response
in some time retries on another server.
to find out which client this is you need to check on which
servers the entries were originally added and then see which
client was doing it
Sometime it is moderately harmful, because, for example HBAC
stops working on specific server while doubles still present.
Thanks in forward...
WBR,
Alexander Frolushkin
Cell +79232508764
Work +79232507764
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