Session Manager
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## Session Manager

Tigase Session Manager is where most of Tigase basic options can be configured, and where many operations are controlled from. Changes to session manager can effect operations throughout an entire XMPP installation, so care must be made when changing settings here.

### Mobile Optimizations

By default, Tigase employs XEP-0352 Client State Indication which allows for a more streamlined mobile experiencing by allowing the XMPP server to suppress or reduce the number of updates sent to a client thereby reducing the number of stanzas sent to a mobile client that is inactive. This employment is contained within the processor ClientStateIndication and is independent from the MobileV1, MobileV2, MobileV3 settings.

However, this can be fine tuned by using mobile plugins from Tigase which can be used at the same time by adding the following line to the init.properties file:

    sess-man/plugins-conf/urn\:xmpp\:csi\:0/logic=tigase.xmpp.impl.MobileV1

Options are:

#### MobileV1

Keeps all presence stanzas in queue until client is active.

#### MobileV2

This setting delays delivery of presences while client is in inactive state, but only keeps the last presence for each full jid. This is the default setting for CSI logic.

#### MobileV3

Keeps the same presence logic as MobileV2, but also queues Message Carbons. Currently not supported by CSI processor, will cause issues.

#### Disabling CSI

If you wish to not use the ClientStateIndication processor, set the following in your init.properties file:

    --sm-plugins=-urn:xmpp:csi:0

#### A note about Mobile Plugins

Previously, you could enable Mobile optimization logic using --sm-plugins=+Mobile_V1.

If you have used these in the past, it is recommended you change your system to use the CSI processor with the appropriate mobile processing logic.

If you require v3 logic, or do not wish to use CSI, be sure to disable it using the above option.

### Thread Pool Counts

Session manager can control the number of available thread pools for each processor. By adding the following line to the init.properties file, the global thread pool can be increased by a specified factor:

    sess-man/sm-threads-factor[I]=3

In this case, the global thread pools is increased by a factor or 3.

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