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+<samba:parameter name="username map cache time"
+ context="G"
+ type="integer"
+ xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
+<description>
+ <para>
+ Mapping usernames with the <smbconfoption name="username map"/>
+ or <smbconfoption name="username map script"/>
+ features of Samba can be relatively expensive.
+ During login of a user, the mapping is done several times.
+ In particular, calling the <smbconfoption name="username map script"/>
+ can slow down logins if external databases have to be queried from
+ the script being called.
+ </para>
+
+ <para>
+ The parameter <smbconfoption name="username map cache time"/>
+ controls a mapping cache. It specifies the number of seconds a
+ mapping from the username map file or script is to be efficiently cached.
+ The default of 0 means no caching is done.
+ </para>
+</description>
+
+<value type="default">0</value>
+<value type="example">60</value>
+</samba:parameter>