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7 <!-- $Id: session_shared.xml,v 1.8 2007-05-22 11:05:45 adam Exp $ -->
8 <refentry id="ref-session_shared">
10 <refentrytitle>session_shared</refentrytitle>
11 <manvolnum>3mp</manvolnum>
12 <refmiscinfo>Metaproxy Module</refmiscinfo>
16 <refname>session_shared</refname>
17 <refpurpose> Metaproxy Module for sharing system ressorces between
21 <refsect1><title>DESCRIPTION</title>
23 This filter implements global sharing of
24 result sets (i.e. between threads and therefore between
25 clients), yielding performance improvements especially when
26 incoming requests are from a stateless environment such as a
27 web-server, in which the client process representing a session
28 might be any one of many.
29 It performs the following actions:
33 Reduce the number of backend server sessions.
38 Reduce the number of initializations with backend servers.
43 Optimize the use of result-sets.
51 <varlistentry><term>Session TTL</term>
54 When a backend session is idle for more than this amount of
55 time, given in seconds, it will be closed. Default value
60 <varlistentry><term>Result-Set TTL</term>
63 When a backend session result-set is not in use for more than this
64 amount of time, given in seconds, it will be deleted/reused.
65 Default value is 10 seconds.
69 <varlistentry><term>Result-Set max</term>
72 This specifies the maximum number of result-sets in use by
73 a backend. The number only applies to targets/servers with named
74 result sets. Targets that do not support named result sets
75 may only have one active result set. Default value is 10.
83 <refsect1><title>EXAMPLES</title>
87 <filter type="session_shared">
88 <resultset ttl="10" max="3"/>
96 <refsect1><title>SEE ALSO</title>
99 <refentrytitle>metaproxy</refentrytitle>
100 <manvolnum>1</manvolnum>
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