1 .TH SLAPO-SYNCPROV 5 "RELEASEDATE" "OpenLDAP LDVERSION"
2 .\" Copyright 2004-2014 The OpenLDAP Foundation All Rights Reserved.
3 .\" Copying restrictions apply. See COPYRIGHT/LICENSE.
6 slapo\-syncprov \- Sync Provider overlay to slapd
10 The Sync Provider overlay implements the provider-side support for the
11 LDAP Content Synchronization (RFC4533) as well as syncrepl replication
13 can be used with any backend that maintains entryCSN and entryUUID
14 attributes for its entries. It also creates a contextCSN attribute in
15 the root entry of the database.
17 The contextCSN is updated for every write operation performed against the
18 database. To reduce database contention, the contextCSN is only updated in
19 memory. The value is written to the database on server shutdown and read into
20 memory on startup, and maintained in memory thereafter. Checkpoints may be
21 configured to write the contextCSN into the underlying database to minimize
22 recovery time after an unclean shutdown.
24 On databases that support inequality indexing, it is helpful to set an
25 eq index on the entryCSN attribute when using this overlay.
29 options apply to the Sync Provider overlay.
30 They should appear after the
34 .B syncprov\-checkpoint <ops> <minutes>
35 After a write operation has succeeded, write the contextCSN to the underlying
38 write operations or more than
41 since the last checkpoint. Checkpointing is disabled by default.
43 .B syncprov\-sessionlog <ops>
44 Configures an in-memory session log for recording information about write
45 operations made on the database. The
47 specifies the number of operations that are recorded in the log. All write
48 operations (except Adds) are recorded in the log.
49 When using the session log, it is helpful to set an eq index on the
50 entryUUID attribute in the underlying database.
52 .B syncprov\-nopresent TRUE | FALSE
53 Specify that the Present phase of refreshing should be skipped. This value
54 should only be set TRUE for a syncprov instance on top of a log database
55 (such as one managed by the accesslog overlay).
58 .B syncprov\-reloadhint TRUE | FALSE
59 Specify that the overlay should honor the reloadHint flag in the Sync
60 Control. In OpenLDAP releases 2.3.11 and earlier the syncrepl consumer did
61 not properly set this flag, so the overlay must ignore it. This option
62 should be set TRUE when working with newer releases that properly support
63 this flag. It must be set TRUE when using the accesslog overlay for
64 delta-based syncrepl replication support. The default is FALSE.
68 default slapd configuration file
71 .BR slapd\-config (5),
72 .BR slapo\-accesslog (5).
73 OpenLDAP Administrator's Guide.