程序包 org.apache.pulsar.functions.worker

类 SchedulerManager

java.lang.Object

org.apache.pulsar.functions.worker.SchedulerManager

所有已实现的接口:

AutoCloseable

public class SchedulerManager
extends Object
implements AutoCloseable

The scheduler manager is used to compute scheduling of function instances Only the leader computes new schedulings and writes assignments to the assignment topic The lifecyle of this class is the following: 1. When worker becomes leader, this class with be initialized 2. When worker loses leadership, this class will be closed which also closes the worker's producer to the assignments topic

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	SchedulerManager.DrainInProgressException
static class	SchedulerManager.RebalanceInProgressException
static class	SchedulerManager.TooFewWorkersException
static class	SchedulerManager.UnknownWorkerException
static class	SchedulerManager.WorkerNotRemovedAfterPriorDrainException

字段概要

字段

修饰符和类型	字段	说明
static final String	HEARTBEAT_NAMESPACE
static final String	HEARTBEAT_TENANT

构造器概要

构造器

构造器	说明
SchedulerManager(WorkerConfig workerConfig, org.apache.pulsar.client.api.PulsarClient pulsarClient, PulsarAdmin admin, WorkerStatsManager workerStatsManager, ErrorNotifier errorNotifier)

方法概要

修饰符和类型	方法	说明
org.apache.pulsar.client.api.Producer<byte[]>	acquireExclusiveWrite(Supplier<Boolean> isLeader)	Acquires a exclusive producer.
void	close()
Future<?>	drainIfNotInProgress(String workerId)
LongRunningProcessStatus	getDrainStatus(String workerId)
void	initialize(org.apache.pulsar.client.api.Producer<byte[]> exclusiveProducer)
Future<?>	rebalanceIfNotInprogress()
Future<?>	schedule()
protected int	updateWorkerDrainMap()

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

HEARTBEAT_TENANT

public static final String HEARTBEAT_TENANT

另请参阅:

• 常量字段值

HEARTBEAT_NAMESPACE

public static final String HEARTBEAT_NAMESPACE

另请参阅:

• 常量字段值

构造器详细资料

SchedulerManager

public SchedulerManager(WorkerConfig workerConfig,
 org.apache.pulsar.client.api.PulsarClient pulsarClient,
 PulsarAdmin admin,
 WorkerStatsManager workerStatsManager,
 ErrorNotifier errorNotifier)

方法详细资料

acquireExclusiveWrite

public org.apache.pulsar.client.api.Producer<byte[]> acquireExclusiveWrite(Supplier<Boolean> isLeader)
                                                                    throws WorkerUtils.NotLeaderAnymore

Acquires a exclusive producer. This method cannot return null. It can only return a valid exclusive producer or throw NotLeaderAnymore exception.

参数:

isLeader - if the worker is still the leader

返回:

A valid exclusive producer

抛出:

WorkerUtils.NotLeaderAnymore - if the worker is no longer the leader.

initialize

public void initialize(org.apache.pulsar.client.api.Producer<byte[]> exclusiveProducer)

schedule

public Future<?> schedule()

rebalanceIfNotInprogress

public Future<?> rebalanceIfNotInprogress()

drainIfNotInProgress

public Future<?> drainIfNotInProgress(String workerId)

getDrainStatus

public LongRunningProcessStatus getDrainStatus(String workerId)

updateWorkerDrainMap

protected int updateWorkerDrainMap()

close

public void close()

指定者:

close 在接口中 AutoCloseable