software.amazon.kinesis.coordinator

Enum MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode

java.lang.Object

java.lang.Enum<MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode>

software.amazon.kinesis.coordinator.MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode

All Implemented Interfaces:

Serializable, Comparable<MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode>

Enclosing class:

MigrationAdaptiveLeaseAssignmentModeProvider

public static enum MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode
extends Enum<MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode>

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT_LEASE_COUNT_BASED_ASSIGNMENT This is the 2.x assignment mode.
WORKER_UTILIZATION_AWARE_ASSIGNMENT This is the 3.x assigment mode.

Method Summary

Modifier and Type	Method and Description
static MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DEFAULT_LEASE_COUNT_BASED_ASSIGNMENT

public static final MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode DEFAULT_LEASE_COUNT_BASED_ASSIGNMENT

This is the 2.x assignment mode. This mode assigns leases based on the number of leases. This mode involves each worker independently determining how many leases to pick or how many leases to steal from other workers.

WORKER_UTILIZATION_AWARE_ASSIGNMENT

public static final MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode WORKER_UTILIZATION_AWARE_ASSIGNMENT

This is the 3.x assigment mode. This mode uses each worker's resource utilization to perform lease assignment. Assignment is done by a single worker (elected leader), which looks at WorkerMetricStats for each worker to determine lease assignment. This mode primarily does 1. Starts WorkerMetricStatsManager on the worker which starts publishing WorkerMetricStats 2. Starts the LeaseDiscoverer 3. Creates if not already available the LeaseOwnerToLeaseKey GSI on the lease table and validate that is ACTIVE.

Method Detail

values

public static MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode c : MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MigrationAdaptiveLeaseAssignmentModeProvider.LeaseAssignmentMode valueOf(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.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null