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cassandra.policies - Load balancing and Failure Handling Policies

.. module:: cassandra.policies

Load Balancing

.. autoclass:: HostDistance
    :members:


.. autoclass:: LoadBalancingPolicy
   :members:


.. autoclass:: RoundRobinPolicy
   :members:


.. autoclass:: DCAwareRoundRobinPolicy
   :members:


.. autoclass:: WhiteListRoundRobinPolicy
   :members:


.. autoclass:: TokenAwarePolicy
   :members:


.. autoclass:: HostFilterPolicy

   .. we document these methods manually so we can specify a param to predicate

   .. automethod:: predicate(host)
   .. automethod:: distance
   .. automethod:: make_query_plan

Translating Server Node Addresses

.. autoclass:: AddressTranslator
   :members:


.. autoclass:: IdentityTranslator
   :members:


.. autoclass:: EC2MultiRegionTranslator
   :members:

Marking Hosts Up or Down

.. autoclass:: ConvictionPolicy
   :members:


.. autoclass:: SimpleConvictionPolicy
   :members:

Reconnecting to Dead Hosts

.. autoclass:: ReconnectionPolicy
   :members:


.. autoclass:: ConstantReconnectionPolicy
   :members:


.. autoclass:: ExponentialReconnectionPolicy
   :members:

Retrying Failed Operations

.. autoclass:: WriteType
   :members:


.. autoclass:: RetryPolicy
   :members:


.. autoclass:: FallthroughRetryPolicy
   :members:


.. autoclass:: DowngradingConsistencyRetryPolicy
   :members:

Retrying Idempotent Operations

.. autoclass:: SpeculativeExecutionPolicy
   :members:


.. autoclass:: ConstantSpeculativeExecutionPolicy
   :members: