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Clarification/warning about delta-sync backup/restore

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Howard Chu 2012-01-16 10:10:19 -08:00
parent 221d3ccdc6
commit cedbc9f77f
1 changed files with 6 additions and 1 deletions
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doc/guide/admin/replication.sdf
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@ -335,7 +335,7 @@ demonstrate a very real problem that is encountered in some LDAP deployments.
Delta-syncrepl, a changelog-based variant of syncrepl, is designed to address
situations like the one described above. Delta-syncrepl works by maintaining a
changelog of a selectable depth on the provider. The replication consumer
changelog of a selectable depth in a separate database on the provider. The replication consumer
checks the changelog for the changes it needs and, as long as
the changelog contains the needed changes, the consumer fetches the changes
from the changelog and applies them to its database. If, however, a replica
@ -343,6 +343,11 @@ is too far out of sync (or completely empty), conventional syncrepl is used to
bring it up to date and replication then switches back to the delta-syncrepl
mode.
Note: since the database state is stored in both the changelog DB and the
main DB on the provider, it is important to backup/restore both the changelog
DB and the main DB using slapcat/slapadd when restoring a DB or copying
it to another machine.
For configuration, please see the {{SECT:Delta-syncrepl}} section.