<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >LDBM Database Directives</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="LDAP Linux HOWTO" HREF="index.html"><LINK REL="UP" TITLE="Configuring the LDAP Server" HREF="config.html"><LINK REL="PREVIOUS" TITLE="BDB Database Directives" HREF="bdbdirect.html"><LINK REL="NEXT" TITLE="Access Control Examples" HREF="accesscontrol.html"></HEAD ><BODY CLASS="section" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >LDAP Linux HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="bdbdirect.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 3. Configuring the LDAP Server</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="accesscontrol.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="section" ><H1 CLASS="section" ><A NAME="LDBMDirect" ></A >3.6. LDBM Database Directives</H1 ><P >Directives in this category only apply to the LDBM backend database. That is, they must follow a "database ldbm" line and come before any other "database" or "backend" line. For a complete reference of LDBM configuration directives, see the slapd-ldbm manpages (<EM >man slapd-ldbm</EM >).</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >cachesize <integer></PRE ></FONT ></TD ></TR ></TABLE ><P >This directive specifies the size in entries of the in-memory cache maintained by the LDBM backend database instance.</P ><P >Default:</P ><P >cachesize 1000</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >dbcachesize <integer></PRE ></FONT ></TD ></TR ></TABLE ><P >This directive specifies the size in bytes of the in-memory cache associated with each open index file. If not supported by the underlying database method, this directive is ignored without comment. Increasing this number uses more memory but can cause a dramatic performance increase, especially during modifies or when building indexes.</P ><P >Default:</P ><P >dbcachesize 100000</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >dbnolocking</PRE ></FONT ></TD ></TR ></TABLE ><P >This option, if present, disables database locking. Enabling this option may improve performance at the expense of data security.</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >dbnosync</PRE ></FONT ></TD ></TR ></TABLE ><P >This option causes on-disk database contents not to be immediately synchronized with in memory changes upon change. Enabling this option may improve performance at the expense of data security.</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >directory <directory></PRE ></FONT ></TD ></TR ></TABLE ><P >This directive specifies the directory where the LDBM files containing the database and associated indexes live.</P ><P >Default:</P ><P >directory /usr/local/var/openldap-data</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >index {<attrlist> | default} [pres,eq,approx,sub,none]</PRE ></FONT ></TD ></TR ></TABLE ><P >This directive specifies the indexes to maintain for the given attribute. If only an <attrlist> is given, the default indexes are maintained.</P ><P >Example:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" > index default pres,eq index uid index cn,sn pres,eq,sub index objectClass eq </PRE ></FONT ></TD ></TR ></TABLE ><P >The first line sets the default set of indexes to maintain to present and equality. The second line causes the default (pres,eq) set of indices to be maintained for the uid attribute type. The third line causes present, equality and substring indices to be maintained for cn and sn attribute types. The fourth line causes an equality index for the objectClass attribute type.</P ><P >By default, no indices are maintained. It is generally advised that minimally an equality index upon objectClass be maintained.</P ><P >index objectClass eq</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >mode <integer></PRE ></FONT ></TD ></TR ></TABLE ><P >This directive specifies the file protection mode that newly created database index files should have.</P ><P >Default:</P ><P >mode 0600</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="bdbdirect.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="accesscontrol.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >BDB Database Directives</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="config.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Access Control Examples</TD ></TR ></TABLE ></DIV ></BODY ></HTML >