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add the description of the sessionlog directive

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Jong Hyuk Choi 2003-11-24 19:43:43 +00:00
parent eb7ff29a0d
commit 897fed0967
1 changed files with 33 additions and 3 deletions
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36
doc/guide/admin/slapdconfig.sdf
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@ -497,9 +497,9 @@ search requests to the provider slapd according to the search
specification. The search specification includes {{EX:searchbase}},
{{EX:scope}}, {{EX:filter}}, {{EX:attrs}}, {{EX:attrsonly}},
{{EX:sizelimit}}, and {{EX:timelimit}} parameters as in the normal
search specification. The syncrepl search specification
has the same default value semantics as the {{REF:ldapsearch(1)}}
client search tool.
search specification. The syncrepl search specification
has the same value syntax and the same default values
as in the {{REF:ldapsearch(1)}} client search tool.
The LDAP Content Synchronization protocol has two operation
types: {{EX:refreshOnly}} and {{EX:refreshAndPersist}}.
@ -566,6 +566,7 @@ That is, they must follow a "database bdb" line and come before any
subsequent "backend" or "database" line. For a complete reference
of BDB configuration directives, see {{slapd-bdb}}(5).
H4: directory <directory>
This directive specifies the directory where the BDB files
@ -576,6 +577,35 @@ containing the database and associated indices live.
> directory /usr/local/var/openldap-data
H4: sessionlog <sid> <limit>
This directive specifies a session log store in the provider site
which contains the information on the entries which has been
scoped out of the content of the {{EX:<sid>}} replication session.
The first syncrepl search request having the same sid value in the
cookie establishes the session log store in the provider site.
The number of the entries in the session log store is limited
by {{EX:<limit>}}. Excessive entries are removed from the store
in the FIFO order. Both {{EX:<sid>}} and {{EX:<limit>}} are integers.
{{EX:<sid>}} has no more than three digits.
The LDAP Content Synchronization operation of a pre-existing
session uses the session log store in order to reduce the amount
of synchronization traffic. If the replica is not so outdated that
it can be made up-to-date by the information in the session store,
the provider slapd will send the in-scope entries added to or modified
within the replication content together with the identities of the
scoped-out entries to the consumer slapd. If the replica status is
beyond the coverage of the history store, then the provider slapd will
send the changed in-scope entries together with the identities of the
unchanged in-scope entries. The consumer slapd will then remove those
entries in the replica which is not identified as present in the
master content.
An access control mechanism is to be further provided to
make the session joining controllable.
H3: LDBM Database Directives
Directives in this category only apply to a {{TERM:LDBM}} database.