Package io.debezium.connector.spanner.task.leader

Class LeaderService

java.lang.Object

io.debezium.connector.spanner.task.leader.LeaderService

public class LeaderService
extends Object

Provides a Leader Task functionality, after the rebalance event happens. Leader waits all the task answer to rebalance event, distributes partitions across tasks, generates New Epoch message.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Duration	AWAIT_TASK_ANSWER_DURATION
private final com.google.cloud.Timestamp	endTime
private final io.debezium.pipeline.ErrorHandler	errorHandler
private final io.debezium.function.BlockingConsumer<TaskStateChangeEvent>	eventConsumer
private static final org.slf4j.Logger	LOGGER
private final MetricsEventPublisher	metricsEventPublisher
private final PartitionFactory	partitionFactory
private static final int	POLL_INTERVAL_MILLIS
private final com.google.cloud.Timestamp	startTime
private final TaskSyncContextHolder	taskSyncContextHolder

Constructor Summary

Constructors

Constructor	Description
LeaderService(TaskSyncContextHolder taskSyncContextHolder, SpannerConnectorConfig spannerConnectorConfig, io.debezium.function.BlockingConsumer<TaskStateChangeEvent> eventConsumer, io.debezium.pipeline.ErrorHandler errorHandler, PartitionFactory partitionFactory, MetricsEventPublisher metricsEventPublisher)

Method Summary

Modifier and Type	Method	Description
Map<String,String>	awaitAllNewTaskStateUpdates(Set<String> consumers, long rebalanceGenerationId)
boolean	isStartFromScratch()
void	newParentPartition()

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

POLL_INTERVAL_MILLIS

private static final int POLL_INTERVAL_MILLIS

See Also:

• Constant Field Values

AWAIT_TASK_ANSWER_DURATION

private static final Duration AWAIT_TASK_ANSWER_DURATION

taskSyncContextHolder

private final TaskSyncContextHolder taskSyncContextHolder

startTime

private final com.google.cloud.Timestamp startTime

endTime

private final com.google.cloud.Timestamp endTime

eventConsumer

private final io.debezium.function.BlockingConsumer<TaskStateChangeEvent> eventConsumer

errorHandler

private final io.debezium.pipeline.ErrorHandler errorHandler

metricsEventPublisher

private final MetricsEventPublisher metricsEventPublisher

partitionFactory

private final PartitionFactory partitionFactory

Constructor Details

LeaderService

public LeaderService(TaskSyncContextHolder taskSyncContextHolder,
 SpannerConnectorConfig spannerConnectorConfig,
 io.debezium.function.BlockingConsumer<TaskStateChangeEvent> eventConsumer,
 io.debezium.pipeline.ErrorHandler errorHandler,
 PartitionFactory partitionFactory,
 MetricsEventPublisher metricsEventPublisher)

Method Details

isStartFromScratch

public boolean isStartFromScratch()

awaitAllNewTaskStateUpdates

public Map<String,String> awaitAllNewTaskStateUpdates(Set<String> consumers,
 long rebalanceGenerationId)
                                               throws InterruptedException

Throws:

InterruptedException

newParentPartition

public void newParentPartition()
                        throws InterruptedException

Throws:

InterruptedException