SLAPO-SSSVLV(5)                        File Formats Manual                        SLAPO-SSSVLV(5)



NAME
       slapo-sssvlv - Server Side Sorting and Virtual List View overlay to slapd

SYNOPSIS
       /etc/ldap/slapd.conf

DESCRIPTION
       This overlay implements the LDAP Server Side Sorting (RFC2891) control as well as the Vir‐
       tual List View control. It also replaces the default  implementation  of  the  LDAP  Page‐
       dResults  (RFC2696) control, to ensure that it works with Sorting. The overlay can be used
       with any backend or globally for all backends.

       Since a complete result set must be generated in memory before sorting can  be  performed,
       processing  sort requests can have a large impact on the server's memory use. As such, any
       connection is limited to having only a limited number of sort requests active at  a  time.
       Additional limits may be configured as described below.


CONFIGURATION
       These  slapd.conf options apply to the SSSVLV overlay.  They should appear after the over‐
       lay directive.

       sssvlv-max <num>
              Set the maximum number of concurrent sort requests allowed across all  connections.
              The default is one half of the number of server threads.

       sssvlv-maxkeys <num>
              Set the maximum number of keys allowed in a sort request. The default is 5.

       sssvlv-maxperconn <num>
              Set  the  maximum  number  of  concurrent paged search requests per connection. The
              default is 5. The number of concurrent requests remains limited by sssvlv-max.

FILES
       /etc/ldap/slapd.conf
              default slapd configuration file

       /etc/ldap/slapd.d
              default slapd configuration directory

SEE ALSO
       slapd.conf(5), slapd-config(5).

       "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)

       IETF LDAP Virtual List View proposal by D. Boreham, J. Sermersheim, and A. Kashi  in  IETF
       document "draft-ietf-ldapext-ldapv3-vlv-09.txt".

AUTHOR
       Howard Chu



OpenLDAP                                    2014/09/20                            SLAPO-SSSVLV(5)