org.apache.pulsar.functions.worker.scheduler

Interface IScheduler

All Known Implementing Classes:

RoundRobinScheduler

public interface IScheduler

Method Summary

Modifier and Type	Method and Description
default List<org.apache.pulsar.functions.proto.Function.Assignment>	rebalance(List<org.apache.pulsar.functions.proto.Function.Assignment> currentAssignments, Set<String> workers) Rebalances function instances scheduled to workers
List<org.apache.pulsar.functions.proto.Function.Assignment>	schedule(List<org.apache.pulsar.functions.proto.Function.Instance> unassignedFunctionInstances, List<org.apache.pulsar.functions.proto.Function.Assignment> currentAssignments, Set<String> workers) Scheduler schedules assignments to appropriate workers and adds into #resultAssignments

Method Detail

schedule

List<org.apache.pulsar.functions.proto.Function.Assignment> schedule(List<org.apache.pulsar.functions.proto.Function.Instance> unassignedFunctionInstances,
                                                                     List<org.apache.pulsar.functions.proto.Function.Assignment> currentAssignments,
                                                                     Set<String> workers)

Scheduler schedules assignments to appropriate workers and adds into #resultAssignments

Parameters:

unassignedFunctionInstances - all unassigned instances

currentAssignments - current assignments

workers - current list of active workers

Returns:

A list of new assignments

rebalance

default List<org.apache.pulsar.functions.proto.Function.Assignment> rebalance(List<org.apache.pulsar.functions.proto.Function.Assignment> currentAssignments,
                                                                              Set<String> workers)

Rebalances function instances scheduled to workers

Parameters:

currentAssignments - current assignments

workers - current list of active workers

Returns:

A list of new assignments