org.apache.flink.kubernetes.highavailability

Class KubernetesCheckpointIDCounter

java.lang.Object

org.apache.flink.kubernetes.highavailability.KubernetesCheckpointIDCounter

All Implemented Interfaces:

org.apache.flink.runtime.checkpoint.CheckpointIDCounter

public class KubernetesCheckpointIDCounter
extends Object
implements org.apache.flink.runtime.checkpoint.CheckpointIDCounter

CheckpointIDCounter implementation for Kubernetes. The counter will be stored in JobManager-JobID-leader ConfigMap. The key is Constants.CHECKPOINT_COUNTER_KEY, and value is counter value.

Field Summary

Fields inherited from interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

INITIAL_CHECKPOINT_ID

Constructor Summary

Constructors

Constructor and Description
KubernetesCheckpointIDCounter(FlinkKubeClient kubeClient, String configMapName, String lockIdentity)

Method Summary

Modifier and Type	Method and Description
long	get()
long	getAndIncrement()
void	setCount(long newCount)
void	shutdown(org.apache.flink.api.common.JobStatus jobStatus)
void	start()

Methods inherited from class java.lang.Object

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

Constructor Detail

KubernetesCheckpointIDCounter

public KubernetesCheckpointIDCounter(FlinkKubeClient kubeClient,
                                     String configMapName,
                                     String lockIdentity)

Method Detail

start

public void start()

Specified by:

start in interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

shutdown

public void shutdown(org.apache.flink.api.common.JobStatus jobStatus)

Specified by:

shutdown in interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

getAndIncrement

public long getAndIncrement()
                     throws Exception

Specified by:

getAndIncrement in interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

Throws:

Exception

get

public long get()

Specified by:

get in interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

setCount

public void setCount(long newCount)
              throws Exception

Specified by:

setCount in interface org.apache.flink.runtime.checkpoint.CheckpointIDCounter

Throws:

Exception