Package org.apache.flink.state.forst.snapshot

Class ForStNativeFullSnapshotStrategy<K>

java.lang.Object

org.apache.flink.state.forst.snapshot.ForStSnapshotStrategyBase<K,ForStSnapshotStrategyBase.ForStNativeSnapshotResources>

org.apache.flink.state.forst.snapshot.ForStNativeFullSnapshotStrategy<K>

Type Parameters:

K - type of the backend keys.

All Implemented Interfaces:

AutoCloseable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.runtime.state.SnapshotStrategy<org.apache.flink.runtime.state.KeyedStateHandle,ForStSnapshotStrategyBase.ForStNativeSnapshotResources>

Direct Known Subclasses:

ForStIncrementalSnapshotStrategy

public class ForStNativeFullSnapshotStrategy<K>
extends ForStSnapshotStrategyBase<K,ForStSnapshotStrategyBase.ForStNativeSnapshotResources>

Snapshot strategy for ForStKeyedStateBackend that is based on disableFileDeletions()+getLiveFiles() of ForSt and creates full snapshots.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.state.forst.snapshot.ForStSnapshotStrategyBase

ForStSnapshotStrategyBase.ForStNativeSnapshotResources, ForStSnapshotStrategyBase.ForStSnapshotOperation, ForStSnapshotStrategyBase.ForStSyncSnapshotResources, ForStSnapshotStrategyBase.PreviousSnapshot

Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.SnapshotStrategy

org.apache.flink.runtime.state.SnapshotStrategy.SnapshotResultSupplier<S extends org.apache.flink.runtime.state.StateObject>

Field Summary

Fields

Modifier and Type	Field	Description
protected final ForStStateDataTransfer	stateTransfer	The help class used to upload state files.

Fields inherited from class org.apache.flink.state.forst.snapshot.ForStSnapshotStrategyBase

backendUID, db, EMPTY_PREVIOUS_SNAPSHOT, keyGroupPrefixBytes, keyGroupRange, keySerializer, kvStateInformation, resourceContainer, resourceGuard

Constructor Summary

Constructors

Constructor	Description
ForStNativeFullSnapshotStrategy(String description, org.forstdb.RocksDB db, org.apache.flink.util.ResourceGuard resourceGuard, ForStResourceContainer resourceContainer, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, LinkedHashMap<String,ForStOperationUtils.ForStKvStateInfo> kvStateInformation, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, int keyGroupPrefixBytes, UUID backendUID, ForStStateDataTransfer stateTransfer)
ForStNativeFullSnapshotStrategy(org.forstdb.RocksDB db, org.apache.flink.util.ResourceGuard resourceGuard, ForStResourceContainer resourceContainer, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, LinkedHashMap<String,ForStOperationUtils.ForStKvStateInfo> kvStateInformation, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, int keyGroupPrefixBytes, UUID backendUID, ForStStateDataTransfer stateTransfer)

Method Summary

Modifier and Type	Method	Description
org.apache.flink.runtime.state.SnapshotStrategy.SnapshotResultSupplier<org.apache.flink.runtime.state.KeyedStateHandle>	asyncSnapshot(ForStSnapshotStrategyBase.ForStNativeSnapshotResources syncPartResource, long checkpointId, long timestamp, org.apache.flink.runtime.state.CheckpointStreamFactory streamFactory, org.apache.flink.runtime.checkpoint.CheckpointOptions checkpointOptions)
void	close()
void	notifyCheckpointAborted(long abortedCheckpointId)
void	notifyCheckpointComplete(long checkpointId)
protected ForStSnapshotStrategyBase.PreviousSnapshot	snapshotMetaData(long checkpointId, List<org.apache.flink.runtime.state.metainfo.StateMetaInfoSnapshot> stateMetaInfoSnapshots)
ForStSnapshotStrategyBase.ForStNativeSnapshotResources	syncPrepareResources(long checkpointId)

Methods inherited from class org.apache.flink.state.forst.snapshot.ForStSnapshotStrategyBase

cleanupIncompleteSnapshot, getDescription, materializeMetaData

Methods inherited from class java.lang.Object

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

Field Details

stateTransfer

protected final ForStStateDataTransfer stateTransfer

The help class used to upload state files.

Constructor Details

ForStNativeFullSnapshotStrategy

public ForStNativeFullSnapshotStrategy(@Nonnull
 org.forstdb.RocksDB db,
 @Nonnull
 org.apache.flink.util.ResourceGuard resourceGuard,
 @Nonnull
 ForStResourceContainer resourceContainer,
 @Nonnull
 org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
 @Nonnull
 LinkedHashMap<String,ForStOperationUtils.ForStKvStateInfo> kvStateInformation,
 @Nonnull
 org.apache.flink.runtime.state.KeyGroupRange keyGroupRange,
 int keyGroupPrefixBytes,
 @Nonnull
 UUID backendUID,
 @Nonnull
 ForStStateDataTransfer stateTransfer)

ForStNativeFullSnapshotStrategy

public ForStNativeFullSnapshotStrategy(@Nonnull
 String description,
 @Nonnull
 org.forstdb.RocksDB db,
 @Nonnull
 org.apache.flink.util.ResourceGuard resourceGuard,
 @Nonnull
 ForStResourceContainer resourceContainer,
 @Nonnull
 org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
 @Nonnull
 LinkedHashMap<String,ForStOperationUtils.ForStKvStateInfo> kvStateInformation,
 @Nonnull
 org.apache.flink.runtime.state.KeyGroupRange keyGroupRange,
 int keyGroupPrefixBytes,
 @Nonnull
 UUID backendUID,
 @Nonnull
 ForStStateDataTransfer stateTransfer)

Method Details

snapshotMetaData

protected ForStSnapshotStrategyBase.PreviousSnapshot snapshotMetaData(long checkpointId,
 @Nonnull
 List<org.apache.flink.runtime.state.metainfo.StateMetaInfoSnapshot> stateMetaInfoSnapshots)

Specified by:

snapshotMetaData in class ForStSnapshotStrategyBase<K,ForStSnapshotStrategyBase.ForStNativeSnapshotResources>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in class ForStSnapshotStrategyBase<K,ForStSnapshotStrategyBase.ForStNativeSnapshotResources>

notifyCheckpointAborted

public void notifyCheckpointAborted(long abortedCheckpointId)

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)
                              throws Exception

Throws:

Exception

syncPrepareResources

public ForStSnapshotStrategyBase.ForStNativeSnapshotResources syncPrepareResources(long checkpointId)
                                                                            throws Exception

Throws:

Exception

asyncSnapshot

public org.apache.flink.runtime.state.SnapshotStrategy.SnapshotResultSupplier<org.apache.flink.runtime.state.KeyedStateHandle> asyncSnapshot(ForStSnapshotStrategyBase.ForStNativeSnapshotResources syncPartResource,
 long checkpointId,
 long timestamp,
 @Nonnull
 org.apache.flink.runtime.state.CheckpointStreamFactory streamFactory,
 @Nonnull
 org.apache.flink.runtime.checkpoint.CheckpointOptions checkpointOptions)