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5 <!-- $Id: session_shared.xml,v 1.5 2007-01-18 09:12:00 adam Exp $ -->
8 <refentrytitle>session_shared</refentrytitle>
9 <manvolnum>3mp</manvolnum>
10 <refmiscinfo>Metaproxy Module</refmiscinfo>
14 <refname>session_shared</refname>
15 <refpurpose>Module for sharing result-sets etc. between threads</refpurpose>
18 <refsect1><title>DESCRIPTION</title>
20 This module allows many Z39.50 frontend sessions to share
21 a number of backend sessions. The purpose is this filter is to:
25 Reduce the number of backend server sessions.
30 Reduce number of Initializations with backend servers.
35 Optimize the use of result-sets.
43 <varlistentry><term>Session TTL</term>
46 When a backend session is idle for more than this amount of
47 time, given in seconds, it will be closed. Default value
52 <varlistentry><term>Result-Set TTL</term>
55 When a backend session result-set is not in use for more than this
56 amount of time, given in seconds, it will be deleted/reused.
57 Default value is 10 seconds.
61 <varlistentry><term>Result-Set max</term>
64 This specifies the maximum number of result-sets in use by
65 a backend. The number only applies to targets/servers with named
66 result sets. Targets that do not support named result sets
67 may only have one active result set. Default value is 10.
75 <refsect1><title>EXAMPLES</title>
79 <filter type="session_shared">
80 <resultset ttl="10" max="3"/>
88 <refsect1><title>SEE ALSO</title>
91 <refentrytitle>metaproxy</refentrytitle>
92 <manvolnum>1</manvolnum>
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