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Session Persistence
===================
There are two types (or modes) of session persistence:
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name | Description |
+===================+===================================================================================================================================================================================================================================+
| ``HTTP_COOKIE`` | A session persistence mechanism that inserts an HTTP cookie and is used to determine the destination back-end node. This is supported for HTTP load balancing only. |
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| ``SOURCE_IP`` | A session persistence mechanism that will keep track of the source IP address that is mapped and is able to determine the destination back-end node. This is supported for HTTPS pass-through and non-HTTP load balancing only. |
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
.. include:: lb-setup.sample.rst
List Session Persistence Configuration
--------------------------------------
.. code-block:: php
$sessionPersistence = $loadBalancer->sessionPersistence();
/** @var $sessionPersistenceType null | 'HTTP_COOKIE' | 'SOURCE_IP' **/
$sessionPersistenceType = $sessionPersistence->persistenceType;
In the example above:
- If session persistence is enabled, the value of
``$sessionPersistenceType`` is the type of session persistence:
either ``HTTP_COOKIE`` or ``SOURCE_IP``.
- If session persistence is disabled, the value of
``$sessionPersistenceType`` is ``null``.
Enable Session Persistence
--------------------------
.. code-block:: php
$sessionPersistence = $loadBalancer->sessionPersistence();
$sessionPersistence->update(array(
'persistenceType' => 'HTTP_COOKIE'
));
Disable Session Persistence
---------------------------
.. code-block:: php
$sessionPersistence = $loadBalancer->sessionPersistence();
$sessionPersistence->delete();