Package com.qfs.distribution

Interface IMultiVersionDataActivePivot

All Superinterfaces:
IAgent, IContinuouslyQueryable, IExtendedPluginValue, IHasId, IMemoryMonitored, IMultiVersion, IMultiVersionActivePivot, IMultiVersionOperations, IQueryable, IRebuildable<IActivePivotVersion>, ITransactionalMultiVersion
All Known Implementing Classes:
MultiVersionDataActivePivot
public interface IMultiVersionDataActivePivot extends IMultiVersionActivePivot
This instance of IMultiVersionActivePivot is made for the distributed architecture. In addition to its parent's attributes, it holds a DataNodeManager that creates new data nodes when a transaction is started on a given branch, if the epoch dimension is enabled.

If it is not, only one DataNode is created for the master branch.

The data nodes are stopped when their associated branches are deleted from the history.

Each data node points toward the head of a given branch of this instance. They all hold a reference to this instance. A query node can then discover data nodes as they join the cluster, and can execute queries on several heads.

Author:
ActiveViam

  • Method Details

    • getDataCubeAdapterMap

      Map<String,IDataCubeAdapter> getDataCubeAdapterMap()
      Returns this data cube's map that holds, for each query node in the cluster's address, the associated IDataCubeAdapter.
      Returns:
      the map

    • startDistribution

      void startDistribution() throws AgentException
      Start the distribution infrastructure. If the node manager contain several DataNode, all data nodes will be started one by one.
      Throws:
      AgentException - if an issue is raised when starting the DataNodeManager.

    • restartDistribution

      @Deprecated(since="6.0.8", forRemoval=true) default void restartDistribution()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Disconnects the data cube from current cluster and restarts distribution according to the cluster definition.

    • getDataNodeBranchManager

      DataNodeManager getDataNodeBranchManager()
      Getter.
      Returns:
      the DataNodeManager that handle creation and deletion of data nodes

    • getUniqueIdentifierInCluster

      String getUniqueIdentifierInCluster()
      Returns the unique cube identifier of the cube withing the cluster.