org.apache.flink.runtime.checkpoint

类 AbstractCompleteCheckpointStore

java.lang.Object

org.apache.flink.runtime.checkpoint.AbstractCompleteCheckpointStore

所有已实现的接口:

CompletedCheckpointStore

直接已知子类:

DefaultCompletedCheckpointStore, EmbeddedCompletedCheckpointStore, StandaloneCompletedCheckpointStore

public abstract class AbstractCompleteCheckpointStore
extends Object
implements CompletedCheckpointStore

The abstract class of CompletedCheckpointStore, which holds the SharedStateRegistry and provides the registration of shared state.

字段概要

从接口继承的字段 org.apache.flink.runtime.checkpoint.CompletedCheckpointStore

LOG

构造器概要

构造器

构造器和说明
AbstractCompleteCheckpointStore(SharedStateRegistry sharedStateRegistry)

方法概要

限定符和类型	方法和说明
protected static Optional<Long>	findLowest(Deque<CompletedCheckpoint> unSubsumedCheckpoints)
SharedStateRegistry	getSharedStateRegistry() Returns the SharedStateRegistry used to register the shared state.
void	shutdown(org.apache.flink.api.common.JobStatus jobStatus, CheckpointsCleaner checkpointsCleaner) Shuts down the store.
protected void	unregisterUnusedState(Deque<CompletedCheckpoint> unSubsumedCheckpoints) Unregister shared states that are no longer in use.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.checkpoint.CompletedCheckpointStore

addCheckpointAndSubsumeOldestOne, getAllCheckpoints, getLatestCheckpoint, getLatestCheckpointId, getMaxNumberOfRetainedCheckpoints, getNumberOfRetainedCheckpoints, requiresExternalizedCheckpoints

构造器详细资料

AbstractCompleteCheckpointStore

public AbstractCompleteCheckpointStore(SharedStateRegistry sharedStateRegistry)

方法详细资料

getSharedStateRegistry

public SharedStateRegistry getSharedStateRegistry()

从接口复制的说明: CompletedCheckpointStore

Returns the SharedStateRegistry used to register the shared state.

指定者:

getSharedStateRegistry 在接口中 CompletedCheckpointStore

shutdown

public void shutdown(org.apache.flink.api.common.JobStatus jobStatus,
                     CheckpointsCleaner checkpointsCleaner)
              throws Exception

从接口复制的说明: CompletedCheckpointStore

Shuts down the store.

The job status is forwarded and used to decide whether state should actually be discarded or kept. SharedStateRegistry.unregisterUnusedState(long) and CheckpointsCleaner.cleanSubsumedCheckpoints(long, java.util.Set<java.lang.Long>, java.lang.Runnable, java.util.concurrent.Executor) should be called here to subsume unused state.

指定者:

shutdown 在接口中 CompletedCheckpointStore

参数:

jobStatus - Job state on shut down

checkpointsCleaner - that will cleanup completed checkpoints if needed

抛出:

Exception

unregisterUnusedState

protected void unregisterUnusedState(Deque<CompletedCheckpoint> unSubsumedCheckpoints)

Unregister shared states that are no longer in use. Should be called after completing a checkpoint (even if no checkpoint was subsumed, so that state added by an aborted checkpoints and not used later can be removed).

findLowest

protected static Optional<Long> findLowest(Deque<CompletedCheckpoint> unSubsumedCheckpoints)