org.apache.flink.runtime.jobmanager

类 ZooKeeperJobGraphStoreWatcher

java.lang.Object

org.apache.flink.runtime.jobmanager.ZooKeeperJobGraphStoreWatcher

所有已实现的接口:

JobGraphStoreWatcher

public class ZooKeeperJobGraphStoreWatcher
extends Object
implements JobGraphStoreWatcher

JobGraphStoreWatcher implementation for ZooKeeper.

Each job graph creates ZNode:

 +----O /flink/jobgraphs/<job-id> 1 [persistent]
 .
 .
 .
 +----O /flink/jobgraphs/<job-id> N [persistent]
 

The root path is watched to detect concurrent modifications in corner situations where multiple instances operate concurrently. The job manager acts as a JobGraphStore.JobGraphListener to react to such situations.

构造器概要

构造器

构造器和说明
ZooKeeperJobGraphStoreWatcher(org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.PathChildrenCache pathCache)

方法概要

限定符和类型	方法和说明
void	start(JobGraphStore.JobGraphListener jobGraphListener) Start the watcher on JobGraphStore.
void	stop() Stop the watcher on JobGraphStore.

从类继承的方法 java.lang.Object

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

构造器详细资料

ZooKeeperJobGraphStoreWatcher

public ZooKeeperJobGraphStoreWatcher(org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.PathChildrenCache pathCache)

方法详细资料

start

public void start(JobGraphStore.JobGraphListener jobGraphListener)
           throws Exception

从接口复制的说明: JobGraphStoreWatcher

Start the watcher on JobGraphStore.

指定者:

start 在接口中 JobGraphStoreWatcher

参数:

jobGraphListener - use jobGraphListener to notify the DefaultJobGraphStore

抛出:

Exception - when start internal services

stop

public void stop()
          throws Exception

从接口复制的说明: JobGraphStoreWatcher

Stop the watcher on JobGraphStore.

指定者:

stop 在接口中 JobGraphStoreWatcher

抛出:

Exception - when stop internal services