Enum AllocationDecision

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<AllocationDecision>, java.lang.constant.Constable, Writeable

    public enum AllocationDecision
    extends java.lang.Enum<AllocationDecision>
    implements Writeable
    An enum which represents the various decision types that can be taken by the allocators and deciders for allocating a shard to a node.
    • Enum Constant Detail


        public static final AllocationDecision THROTTLED
        The allocation attempt was throttled for the shard.
      • NO

        public static final AllocationDecision NO
        The shard cannot be allocated, which can happen for any number of reasons, including the allocation deciders gave a NO decision for allocating.

        public static final AllocationDecision WORSE_BALANCE
        The shard could not be rebalanced to another node despite rebalancing being allowed, because moving the shard to the other node would not form a better cluster balance.

        public static final AllocationDecision AWAITING_INFO
        Waiting on getting shard data from all nodes before making a decision about where to allocate the shard.

        public static final AllocationDecision ALLOCATION_DELAYED
        The allocation decision has been delayed waiting for a replica with a shard copy that left the cluster to rejoin.

        public static final AllocationDecision NO_VALID_SHARD_COPY
        The shard was denied allocation because there were no valid shard copies found for it amongst the nodes in the cluster.
      • NO_ATTEMPT

        public static final AllocationDecision NO_ATTEMPT
        No attempt was made to allocate the shard
    • Method Detail

      • values

        public static AllocationDecision[] values()
        Returns an array containing the constants of this enum type, in the order they are declared.
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static AllocationDecision valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        name - the name of the enum constant to be returned.
        the enum constant with the specified name
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null
      • toString

        public java.lang.String toString()
        toString in class java.lang.Enum<AllocationDecision>