Package com.linkedin.davinci.helix

Class LeaderFollowerPartitionStateModelFactory

java.lang.Object

org.apache.helix.participant.statemachine.StateModelFactory<org.apache.helix.participant.statemachine.StateModel>

com.linkedin.davinci.helix.AbstractStateModelFactory

com.linkedin.davinci.helix.LeaderFollowerPartitionStateModelFactory

Direct Known Subclasses:

LeaderFollowerPartitionStateModelDualPoolFactory

public class LeaderFollowerPartitionStateModelFactory
extends AbstractStateModelFactory

State Transition Handler factory for handling Leader/Follower resources in the storage node.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	LeaderFollowerPartitionStateModelFactory.LeaderFollowerThreadPoolStrategy	The leader follower state thread pool strategy specifies how thread pools are allocated for Helix state transition.

Nested classes/interfaces inherited from class org.apache.helix.participant.statemachine.StateModelFactory

org.apache.helix.participant.statemachine.StateModelFactory.CustomizedExecutorService

Field Summary

Fields inherited from class com.linkedin.davinci.helix.AbstractStateModelFactory

executorService, instanceName, logger, partitionPushStatusAccessorFuture, stateTransitionStats, storeMetadataRepo

Constructor Summary

Constructors

Constructor	Description
LeaderFollowerPartitionStateModelFactory(IngestionBackend ingestionBackend, VeniceConfigLoader configService, ExecutorService executorService, ParticipantStateTransitionStats stateTransitionStats, ReadOnlyStoreRepository metadataRepo, CompletableFuture<HelixPartitionStatusAccessor> partitionPushStatusAccessorFuture, String instanceName, HeartbeatMonitoringService heartbeatMonitoringService)

Method Summary

Modifier and Type	Method	Description
LeaderFollowerPartitionStateModel	createNewStateModel(String resourceName, String partitionName)	This method will be invoked only once per partition per session

Methods inherited from class com.linkedin.davinci.helix.AbstractStateModelFactory

getConfigService, getExecutorService, getIngestionBackend, getStateModelID, getStateTransitionStats, getStoreMetadataRepo, shutDownExecutor, waitExecutorTermination

Methods inherited from class org.apache.helix.participant.statemachine.StateModelFactory

createAndAddBatchMessageWrapper, createAndAddStateModel, createAndAddStateModel, createBatchMessageWrapper, createNewStateModel, getBatchMessageWrapper, getExecutorService, getExecutorService, getPartitionSet, getPartitionSet, getResourceSet, getStateModel, getStateModel, removeStateModel, removeStateModel

Methods inherited from class java.lang.Object

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

Constructor Details

LeaderFollowerPartitionStateModelFactory

public LeaderFollowerPartitionStateModelFactory(IngestionBackend ingestionBackend,
 VeniceConfigLoader configService,
 ExecutorService executorService,
 ParticipantStateTransitionStats stateTransitionStats,
 ReadOnlyStoreRepository metadataRepo,
 CompletableFuture<HelixPartitionStatusAccessor> partitionPushStatusAccessorFuture,
 String instanceName,
 HeartbeatMonitoringService heartbeatMonitoringService)

Method Details

createNewStateModel

public LeaderFollowerPartitionStateModel createNewStateModel(String resourceName,
 String partitionName)

Description copied from class: AbstractStateModelFactory

This method will be invoked only once per partition per session

Specified by:

createNewStateModel in class AbstractStateModelFactory

Parameters:

resourceName - $(topic_name) where state transition is happening

partitionName - $(topic_name)_$(partition) for which the State Transition Handler is required

Returns:

VenicePartitionStateModel for the partition.