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7 <refentry id="ref-session_shared">
9 <refentrytitle>session_shared</refentrytitle>
10 <manvolnum>3mp</manvolnum>
11 <refmiscinfo>Metaproxy Module</refmiscinfo>
15 <refname>session_shared</refname>
16 <refpurpose> Metaproxy Module for sharing system ressorces between
20 <refsect1><title>DESCRIPTION</title>
22 This filter implements global sharing of
23 result sets (i.e. between threads and therefore between
24 clients), yielding performance improvements especially when
25 incoming requests are from a stateless environment such as a
26 web-server, in which the client process representing a session
27 might be any one of many.
28 It performs the following actions:
32 Reduce the number of backend server sessions.
37 Reduce the number of initializations with backend servers.
42 Optimize the use of result-sets.
50 <varlistentry><term>Session TTL</term>
53 When a backend session is idle for more than this amount of
54 time, given in seconds, it will be closed. Default value
59 <varlistentry><term>Result-Set TTL</term>
62 When a backend session result-set is not in use for more than this
63 amount of time, given in seconds, it will be deleted/reused.
64 Default value is 10 seconds.
68 <varlistentry><term>Result-Set max</term>
71 This specifies the maximum number of result-sets in use by
72 a backend. The number only applies to targets/servers with named
73 result sets. Targets that do not support named result sets
74 may only have one active result set. Default value is 10.
82 <refsect1><title>EXAMPLES</title>
86 <filter type="session_shared">
87 <resultset ttl="10" max="3"/>
95 <refsect1><title>SEE ALSO</title>
98 <refentrytitle>metaproxy</refentrytitle>
99 <manvolnum>1</manvolnum>
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