Interface ClusterPlugin


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

    • 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