org.apache.flink.runtime.rest.handler.job.checkpoints

类 CheckpointStatsCache

java.lang.Object

org.apache.flink.runtime.rest.handler.job.checkpoints.CheckpointStatsCache

public class CheckpointStatsCache
extends Object

A size-based cache of accessed checkpoints for completed and failed checkpoints.

Having this cache in place for accessed stats improves the user experience quite a bit as accessed checkpoint stats stay available and don't expire. For example if you manage to click on the last checkpoint in the history, it is not available via the stats as soon as another checkpoint is triggered. With the cache in place, the checkpoint will still be available for investigation.

构造器概要

构造器

构造器和说明
CheckpointStatsCache(int maxNumEntries)

方法概要

限定符和类型	方法和说明
void	tryAdd(AbstractCheckpointStats checkpoint) Try to add the checkpoint to the cache.
AbstractCheckpointStats	tryGet(long checkpointId) Try to look up a checkpoint by it's ID in the cache.

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

CheckpointStatsCache

public CheckpointStatsCache(int maxNumEntries)

方法详细资料

tryAdd

public void tryAdd(AbstractCheckpointStats checkpoint)

Try to add the checkpoint to the cache.

参数:

checkpoint - Checkpoint to be added.

tryGet

public AbstractCheckpointStats tryGet(long checkpointId)

Try to look up a checkpoint by it's ID in the cache.

参数:

checkpointId - ID of the checkpoint to look up.

返回:

The checkpoint or null if checkpoint not found.