Red-hat 8.1 Manual do Utilizador descarregar pdf (Página 65)

This attribute controls the maximum age of deleted entries (tombstone entries) and state information.

The Directory Server stores tombstone entries and state information so that when a conflict occurs in a

multi-master replication process, the server resolves the conflicts based on the timestamp and replica ID

stored in the change sequence numbers.

An internal Directory Server housekeeping operation periodically removes tombstone entries which are

older than the value of this attribute (in seconds). State information which is older than the

nsDS5ReplicaPurgeDelay value is removed when an entry which contains the the state information is

modified.

Not every tombstone and state information may be removed because, with multi-master replication, the

server may need to keep a small number of the latest updates to prime replication, even if they are older

than the value of the attribute.

This attribute specifies the interval, in seconds, to perform internal purge operations on an entry. When

setting this attribute, ensure that the purge delay is longer than the longest replication cycle in the

replication policy to preserve enough information to resolve replication conflicts and to prevent the

copies of data stored in different servers from diverging.

Parameter Descript ion

Entry DN cn=replica, cn=suffixDN, cn=mapping tree,

cn=config

Valid Range 0 (keep forever) to maximum 32-bit integer

(2147483647)

Default Value 604800 [1 week (60x60x24x7)]

Syntax Integer

Example nsDS5ReplicaPurgeDelay: 604 800

2.3.7.11. nsDS5ReplicaRefe rral

This multi-valued attribute specifies the user-defined referrals. T his should only be defined on a

consumer. User referrals are only returned when a client attempts to modify data on a read-only

consumer. T his optional referral overrides the referral that is automatically configured by the consumer

by the replication protocol.

Parameter Descript ion

Entry DN cn=replica, cn=suffixDN, cn=mapping tree,

cn=config

Valid Values Any valid LDAP URL

Default Value

Syntax DirectoryString

Example nsDS5ReplicaReferral: ldap://ldap.example.com

2.3.7.12. nsDS5ReplicaRoot

This attribute sets the DN at the root of a replicated area. T his attribute must have the same value as

the suffix of the database being replicated and cannot be modified.

Parameter Descript ion

Entry DN cn=replica, cn=suffixDN, cn=mapping tree,

cn=config

Valid Values Suffix of the database being replicated, which is

the suffix DN

Default Value

Syntax DirectoryString

Example nsDS5ReplicaRoot: "dc=example,dc=com"

2.3.7.13. nsDS5ReplicaT ombst onePurge Interval

This attribute specifies the time interval in seconds between purge operation cycles.

Periodically, the server runs an internal housekeeping operation to purge old update and state

information from the changelog and the main database. See Section 2.3.7.10,

“nsDS5ReplicaPurgeDelay”.

When setting this attribute, remember that the purge operation is time-consuming, especially if the server

handles many delete operations from clients and suppliers.

Parameter Descript ion

Entry DN cn=replica, cn=suffixDN, cn=mapping tree,

Red Hat Directory Server 8.1 Configuration and Command Reference 65

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 291 292

Comentários a estes Manuais

Sem comentários

Red-hat 8.1 Manual do Utilizador Página 65

Comentários a estes Manuais