Interface ClusterPlugin


  • public interface ClusterPlugin
    An extension point for Plugin implementations to customer behavior of cluster management.
    • Method Detail

      • createAllocationDeciders

        default java.util.Collection<AllocationDecider> createAllocationDeciders​(Settings settings,
                                                                                 ClusterSettings clusterSettings)
        Return deciders used to customize where shards are allocated.
        Parameters:
        settings - Settings for the node
        clusterSettings - Settings for the cluster
        Returns:
        Custom AllocationDecider instances
      • getShardsAllocators

        default java.util.Map<java.lang.String,​java.util.function.Supplier<ShardsAllocator>> getShardsAllocators​(Settings settings,
                                                                                                                       ClusterSettings clusterSettings)
        Return ShardsAllocator implementations added by this plugin. The key of the returned Map is the name of the allocator, and the value is a function to construct the allocator.
        Parameters:
        settings - Settings for the node
        clusterSettings - Settings for the cluster
        Returns:
        A map of allocator implementations
      • onNodeStarted

        default void onNodeStarted()
        Called when the node is started