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l.String.Interpol */
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.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
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}

.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0

****************************
Feature: Distributed Locking
****************************

Summary
^^^^^^^

The Distributed Locking Feature provides locking of resources across a pool of PDP-D hosts.  The list of locks is maintained in a database, where each record includes a resource identifier, an owner identifier, and an expiration time.  Typically, a drools application will unlock the resource when it's operation completes.  However, if it fails to do so, then the resource will be automatically released when the lock expires, thus preventing a resource from becoming permanently locked.

Usage
^^^^^

    .. code-block:: bash
       :caption: Enable Feature Distributed Locking 

        policy stop

        features enable distributed-locking

    The configuration is located at:

    * $POLICY_HOME/config/feature-distributed-locking.properties


    .. code-block:: bash
       :caption: Start the PDP-D using pooling

        policy start


    .. code-block:: bash
       :caption: Disable the Distributed Locking feature

        policy stop
        features disable distributed-locking
        policy start


End of Document

.. SSNote: Wiki page ref. https://wiki.onap.org/display/DW/Feature+Distributed+Locking