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Solving Common Replication Conflicts
Chapter
8
Managing Replication
331
Solving Naming Conflicts
When two entries are created with the same DN on different servers, during
replication, the automatic conflict resolution procedure renames the last entry
created by including the entry’s unique identifier in the DN. Every directory entry
includes a unique identifier given by the operational attribute
nsuniqueid
. When a
naming conflict occurs, this unique ID is appended to the non-unique DN.
For example, the entry
uid=adamss,ou=people,dc=example,dc=com
is created on
Server A at time t1, and on Server B at time t2, where t2 is greater (or later) than t1.
After replication, Server A and Server B both hold the following entries:
•
uid=adamss,ou=people,dc=example,dc=com
(created at time t1)
•
nsuniqueid=66446001-1uid=adamss,dc=example,dc=com
(created
at time t2)
The second entry needs to be renamed in such a way that it has a unique DN. The
renaming procedure depends on whether the naming attribute is single-valued or
multi-valued. Each procedure is described below.
Renaming an Entry with a Multi-Valued Naming Attribute
To rename an entry that has a multi-valued naming attribute:
1.
Rename the entry using a new value for the naming attribute, and keep the old
RDN. For example:
prompt% ldapmodify -D
adminDN -w passwd
>dn: nsuniqueid=66446001-1uid=adamss,dc=example,dc=com
>changetype: modrdn
>newrdn: uid=
NewValue
>deleteoldrdn: 0
2.
Remove the old RDN value of the naming attribute, and the conflict marker
attribute. For example:
prompt% ldapmodify -D
adminDN -w passwd
>dn: uid=
NewValue,dc=example,dc=com
>changetype: modify
>delete: uid
>uid: adamss
>-
>delete: nsds5ReplConflict
>-
Содержание NETSCAPE DIRECTORY SERVER 6.1 - ADMINISTRATOR
Страница 1: ...Administrator s Guide Netscape Directory Server Version6 1 August 2002...
Страница 20: ...20 Netscape Directory Server Administrator s Guide August 2002...
Страница 24: ...24 Netscape Directory Server Administrator s Guide August 2002...
Страница 44: ...Starting the Server in Referral Mode 44 Netscape Directory Server Administrator s Guide August 2002...
Страница 78: ...Maintaining Referential Integrity 78 Netscape Directory Server Administrator s Guide August 2002...
Страница 142: ...Using Referrals 142 Netscape Directory Server Administrator s Guide August 2002...
Страница 162: ...Enabling and Disabling Read Only Mode 162 Netscape Directory Server Administrator s Guide August 2002...
Страница 278: ...Setting Resource Limits Based on the Bind DN 278 Netscape Directory Server Administrator s Guide August 2002...
Страница 336: ...Troubleshooting Replication Related Problems 336 Netscape Directory Server Administrator s Guide August 2002...
Страница 396: ...Configuring LDAP Clients to Use SSL 396 Netscape Directory Server Administrator s Guide August 2002...
Страница 418: ...Monitoring Database Link Activity 418 Netscape Directory Server Administrator s Guide August 2002...
Страница 440: ...Miscellaneous Tuning Tips 440 Netscape Directory Server Administrator s Guide August 2002...
Страница 442: ...442 Netscape Directory Server Administrator s Guide August 2002...
Страница 478: ...PTA Plug In Syntax Examples 478 Netscape Directory Server Administrator s Guide August 2002...
Страница 498: ...498 Netscape Directory Server Administrator s Guide August 2002...
Страница 512: ...Storing Information in Multiple Languages 512 Netscape Directory Server Administrator s Guide August 2002...
Страница 532: ...Searching an Internationalized Directory 532 Netscape Directory Server Administrator s Guide August 2002...
Страница 538: ...Examples of LDAP URLs 538 Netscape Directory Server Administrator s Guide August 2002...