org.apache.flink.runtime.state.changelog

接口 LocalChangelogRegistry

所有已知实现类:

LocalChangelogRegistryImpl

@Internal
public interface LocalChangelogRegistry

This registry is responsible for deleting changlog's local handles which are not in use.

字段概要

字段

限定符和类型	字段和说明
static LocalChangelogRegistry	NO_OP

方法概要

限定符和类型	方法和说明
void	discardUpToCheckpoint(long upTo) Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete and ChangelogKeyedStateBackend#notifyCheckpointSubsumed.
void	prune(long checkpointID) Called upon ChangelogKeyedStateBackend#notifyCheckpointAborted.
void	register(StreamStateHandle handle, long checkpointID) Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete.

字段详细资料

NO_OP

static final LocalChangelogRegistry NO_OP

方法详细资料

register

void register(StreamStateHandle handle,
              long checkpointID)

Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete.

参数:

handle - handle to register.

checkpointID - latest used checkpointID.

discardUpToCheckpoint

void discardUpToCheckpoint(long upTo)

Called upon ChangelogKeyedStateBackend#notifyCheckpointComplete and ChangelogKeyedStateBackend#notifyCheckpointSubsumed. Remote dstl handles are unregistered when CompletedCheckpointStore.addCheckpointAndSubsumeOldestOne(org.apache.flink.runtime.checkpoint.CompletedCheckpoint, org.apache.flink.runtime.checkpoint.CheckpointsCleaner, java.lang.Runnable), local dtsl handles are unregistered when the checkpoint completes, because only one checkpoint is kept for local recovery.

参数:

upTo - lowest CheckpointID which is still valid.

prune

void prune(long checkpointID)

Called upon ChangelogKeyedStateBackend#notifyCheckpointAborted.

参数:

checkpointID - to abort