Provided by: slapd_2.4.42+dfsg-2ubuntu3.13_amd64 bug


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




       This  overlay  implements  the  LDAP  Server Side Sorting (RFC2891) control as well as the
       Virtual List View control. It  also  replaces  the  default  implementation  of  the  LDAP
       PagedResults  (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.


       These  slapd.conf  options  apply  to  the  SSSVLV  overlay.  They should appear after the
       overlay 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.


              default slapd configuration file

              default slapd configuration directory


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

       "OpenLDAP Administrator's Guide" (

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


       Howard Chu