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=cls #19917 Clarify docs about sharding ddata

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This commit is contained in:
Patrik Nordwall 2016-03-15 14:49:25 +01:00
parent c735403d47
commit 43dafff152
3 changed files with 20 additions and 7 deletions
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1
akka-docs/rst/dev/index.rst
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@ -9,5 +9,4 @@ Information for Akka Developers
io-layer
developer-guidelines
documentation
team

13
akka-docs/rst/java/cluster-sharding.rst
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@ -184,11 +184,18 @@ Distributed Data Mode
Instead of using :ref:`persistence-java` it is possible to use the :ref:`distributed_data_java` module
as storage for the state of the sharding coordinator. In such case the state of the
``ShardCoordinator`` will be replicated inside a cluster by the Distributed Data module with
``ShardCoordinator`` will be replicated inside a cluster by the :ref:`distributed_data_java` module with
``WriteMajority``/``ReadMajority`` consistency.
This mode can be enabled by setting configuration property ``akka.cluster.sharding.state-store-mode``
as ``ddata``.
This mode can be enabled by setting configuration property::
akka.cluster.sharding.state-store-mode = ddata
It is using the Distributed Data extension that must be running on all nodes in the cluster.
Therefore you should add that extension to the configuration to make sure that it is started
on all nodes::
akka.extensions += "akka.cluster.ddata.DistributedData"
You must explicitly add the ``akka-distributed-data-experimental`` dependency to your build if
you use this mode. It is possible to remove ``akka-persistence`` dependency from a project if it

13
akka-docs/rst/scala/cluster-sharding.rst
View file

@ -187,11 +187,18 @@ Distributed Data Mode
Instead of using :ref:`persistence-scala` it is possible to use the :ref:`distributed_data_scala` module
as storage for the state of the sharding coordinator. In such case the state of the
``ShardCoordinator`` will be replicated inside a cluster by the Distributed Data module with
``ShardCoordinator`` will be replicated inside a cluster by the :ref:`distributed_data_scala` module with
``WriteMajority``/``ReadMajority`` consistency.
This mode can be enabled by setting configuration property ``akka.cluster.sharding.state-store-mode``
as ``ddata``.
This mode can be enabled by setting configuration property::
akka.cluster.sharding.state-store-mode = ddata
It is using the Distributed Data extension that must be running on all nodes in the cluster.
Therefore you should add that extension to the configuration to make sure that it is started
on all nodes::
akka.extensions += "akka.cluster.ddata.DistributedData"
You must explicitly add the ``akka-distributed-data-experimental`` dependency to your build if
you use this mode. It is possible to remove ``akka-persistence`` dependency from a project if it