Package org.apache.pulsar.broker.transaction.buffer.impl

Class SnapshotSegmentAbortedTxnProcessorImpl

java.lang.Object

org.apache.pulsar.broker.transaction.buffer.impl.SnapshotSegmentAbortedTxnProcessorImpl

All Implemented Interfaces:

AbortedTxnProcessor

public class SnapshotSegmentAbortedTxnProcessorImpl
extends Object
implements AbortedTxnProcessor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	SnapshotSegmentAbortedTxnProcessorImpl.PersistentWorker	The PersistentWorker be responsible for executing the persistent tasks, including:

Nested classes/interfaces inherited from interface org.apache.pulsar.broker.transaction.buffer.AbortedTxnProcessor

AbortedTxnProcessor.SnapshotType

Constructor Summary

Constructors

Constructor	Description
SnapshotSegmentAbortedTxnProcessorImpl(PersistentTopic topic)

Method Summary

Modifier and Type	Method	Description
boolean	checkAbortedTransaction(org.apache.pulsar.client.api.transaction.TxnID txnID)	Check whether the transaction ID is an aborted transaction ID.
CompletableFuture<Void>	clearAbortedTxnSnapshot()	Delete the transaction buffer aborted transaction snapshot.
CompletableFuture<Void>	closeAsync()
org.apache.pulsar.common.policies.data.TransactionBufferStats	generateSnapshotStats(boolean segmentStats)	Get the lastSnapshotTimestamps.
void	putAbortedTxnAndPosition(org.apache.pulsar.client.api.transaction.TxnID txnID, Position position)	After the transaction buffer writes a transaction aborted marker to the topic, the transaction buffer will put the aborted txnID and the aborted marker position to AbortedTxnProcessor.
CompletableFuture<Position>	recoverFromSnapshot()	Recover transaction buffer by transaction buffer snapshot.
CompletableFuture<Void>	takeAbortedTxnsSnapshot(Position maxReadPosition)	Take aborted transactions snapshot.
void	trimExpiredAbortedTxns()	Check whether the position in segmentIndex segmentIndex is expired.

Methods inherited from class java.lang.Object

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

Constructor Details

SnapshotSegmentAbortedTxnProcessorImpl

public SnapshotSegmentAbortedTxnProcessorImpl(PersistentTopic topic)

Method Details

putAbortedTxnAndPosition

public void putAbortedTxnAndPosition(org.apache.pulsar.client.api.transaction.TxnID txnID,
 Position position)

Description copied from interface: AbortedTxnProcessor

After the transaction buffer writes a transaction aborted marker to the topic, the transaction buffer will put the aborted txnID and the aborted marker position to AbortedTxnProcessor.

Specified by:

putAbortedTxnAndPosition in interface AbortedTxnProcessor

Parameters:

txnID - aborted transaction ID.

position - the position of the abort txn marker.

checkAbortedTransaction

public boolean checkAbortedTransaction(org.apache.pulsar.client.api.transaction.TxnID txnID)

Description copied from interface: AbortedTxnProcessor

Check whether the transaction ID is an aborted transaction ID.

Specified by:

checkAbortedTransaction in interface AbortedTxnProcessor

Parameters:

txnID - the transaction ID that needs to be checked.

Returns:

a boolean, whether the transaction ID is an aborted transaction ID.

trimExpiredAbortedTxns

public void trimExpiredAbortedTxns()

Check whether the position in segmentIndex segmentIndex is expired. If the position is not exist in the original topic, the according transaction is an invalid transaction. And the according segment is invalid, too. The transaction IDs before the transaction ID in the aborts are invalid, too.

Specified by:

trimExpiredAbortedTxns in interface AbortedTxnProcessor

takeAbortedTxnsSnapshot

public CompletableFuture<Void> takeAbortedTxnsSnapshot(Position maxReadPosition)

Description copied from interface: AbortedTxnProcessor

Take aborted transactions snapshot.

Specified by:

takeAbortedTxnsSnapshot in interface AbortedTxnProcessor

Returns:

a completableFuture.

recoverFromSnapshot

public CompletableFuture<Position> recoverFromSnapshot()

Description copied from interface: AbortedTxnProcessor

Recover transaction buffer by transaction buffer snapshot.

Specified by:

recoverFromSnapshot in interface AbortedTxnProcessor

Returns:

a Position (startReadCursorPosition) determiner where to start to recover in the original topic.

clearAbortedTxnSnapshot

public CompletableFuture<Void> clearAbortedTxnSnapshot()

Description copied from interface: AbortedTxnProcessor

Delete the transaction buffer aborted transaction snapshot.

Specified by:

clearAbortedTxnSnapshot in interface AbortedTxnProcessor

Returns:

a completableFuture.

generateSnapshotStats

public org.apache.pulsar.common.policies.data.TransactionBufferStats generateSnapshotStats(boolean segmentStats)

Description copied from interface: AbortedTxnProcessor

Get the lastSnapshotTimestamps.

Specified by:

generateSnapshotStats in interface AbortedTxnProcessor

Returns:

a transactionBufferStats with the stats in the abortedTxnProcessor.

closeAsync

public CompletableFuture<Void> closeAsync()

Specified by:

closeAsync in interface AbortedTxnProcessor