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PersistentTopic.java
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PersistentTopic.java
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.pulsar.broker.service.persistent;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.apache.commons.lang3.StringUtils.isBlank;
import static org.apache.pulsar.broker.service.persistent.SubscribeRateLimiter.isSubscribeRateEnabled;
import static org.apache.pulsar.common.naming.SystemTopicNames.isEventSystemTopic;
import static org.apache.pulsar.common.protocol.Commands.DEFAULT_CONSUMER_EPOCH;
import static org.apache.pulsar.compaction.Compactor.COMPACTION_SUBSCRIPTION;
import com.carrotsearch.hppc.ObjectObjectHashMap;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import io.netty.buffer.ByteBuf;
import io.netty.util.concurrent.FastThreadLocal;
import java.time.Clock;
import java.util.ArrayList;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.LongAdder;
import java.util.function.BiFunction;
import java.util.stream.Collectors;
import lombok.Getter;
import org.apache.bookkeeper.client.api.LedgerMetadata;
import org.apache.bookkeeper.mledger.AsyncCallbacks;
import org.apache.bookkeeper.mledger.AsyncCallbacks.AddEntryCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.CloseCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.DeleteCursorCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.OffloadCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.OpenCursorCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.TerminateCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.UpdatePropertiesCallback;
import org.apache.bookkeeper.mledger.Entry;
import org.apache.bookkeeper.mledger.ManagedCursor;
import org.apache.bookkeeper.mledger.ManagedCursor.IndividualDeletedEntries;
import org.apache.bookkeeper.mledger.ManagedLedger;
import org.apache.bookkeeper.mledger.ManagedLedgerException;
import org.apache.bookkeeper.mledger.ManagedLedgerException.ManagedLedgerAlreadyClosedException;
import org.apache.bookkeeper.mledger.ManagedLedgerException.ManagedLedgerFencedException;
import org.apache.bookkeeper.mledger.ManagedLedgerException.ManagedLedgerTerminatedException;
import org.apache.bookkeeper.mledger.ManagedLedgerException.MetadataNotFoundException;
import org.apache.bookkeeper.mledger.Position;
import org.apache.bookkeeper.mledger.impl.ManagedCursorContainer;
import org.apache.bookkeeper.mledger.impl.ManagedCursorImpl;
import org.apache.bookkeeper.mledger.impl.ManagedLedgerImpl;
import org.apache.bookkeeper.mledger.impl.PositionImpl;
import org.apache.bookkeeper.net.BookieId;
import org.apache.commons.collections4.MapUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.pulsar.broker.PulsarServerException;
import org.apache.pulsar.broker.namespace.NamespaceService;
import org.apache.pulsar.broker.resources.NamespaceResources.PartitionedTopicResources;
import org.apache.pulsar.broker.service.AbstractReplicator;
import org.apache.pulsar.broker.service.AbstractTopic;
import org.apache.pulsar.broker.service.BrokerService;
import org.apache.pulsar.broker.service.BrokerServiceException;
import org.apache.pulsar.broker.service.BrokerServiceException.AlreadyRunningException;
import org.apache.pulsar.broker.service.BrokerServiceException.ConsumerBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.NamingException;
import org.apache.pulsar.broker.service.BrokerServiceException.NotAllowedException;
import org.apache.pulsar.broker.service.BrokerServiceException.PersistenceException;
import org.apache.pulsar.broker.service.BrokerServiceException.SubscriptionBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.SubscriptionNotFoundException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicBacklogQuotaExceededException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicClosedException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicFencedException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicTerminatedException;
import org.apache.pulsar.broker.service.BrokerServiceException.UnsupportedVersionException;
import org.apache.pulsar.broker.service.Consumer;
import org.apache.pulsar.broker.service.Dispatcher;
import org.apache.pulsar.broker.service.Producer;
import org.apache.pulsar.broker.service.Replicator;
import org.apache.pulsar.broker.service.StreamingStats;
import org.apache.pulsar.broker.service.Subscription;
import org.apache.pulsar.broker.service.SubscriptionOption;
import org.apache.pulsar.broker.service.Topic;
import org.apache.pulsar.broker.service.TransportCnx;
import org.apache.pulsar.broker.service.persistent.DispatchRateLimiter.Type;
import org.apache.pulsar.broker.service.schema.BookkeeperSchemaStorage;
import org.apache.pulsar.broker.stats.ClusterReplicationMetrics;
import org.apache.pulsar.broker.stats.NamespaceStats;
import org.apache.pulsar.broker.stats.ReplicationMetrics;
import org.apache.pulsar.broker.transaction.buffer.TransactionBuffer;
import org.apache.pulsar.broker.transaction.buffer.impl.TransactionBufferDisable;
import org.apache.pulsar.broker.transaction.pendingack.impl.MLPendingAckStore;
import org.apache.pulsar.client.admin.LongRunningProcessStatus;
import org.apache.pulsar.client.admin.OffloadProcessStatus;
import org.apache.pulsar.client.api.MessageId;
import org.apache.pulsar.client.api.transaction.TxnID;
import org.apache.pulsar.client.impl.BatchMessageIdImpl;
import org.apache.pulsar.client.impl.MessageIdImpl;
import org.apache.pulsar.client.impl.MessageImpl;
import org.apache.pulsar.client.impl.PulsarClientImpl;
import org.apache.pulsar.common.api.proto.CommandSubscribe;
import org.apache.pulsar.common.api.proto.CommandSubscribe.InitialPosition;
import org.apache.pulsar.common.api.proto.CommandSubscribe.SubType;
import org.apache.pulsar.common.api.proto.KeySharedMeta;
import org.apache.pulsar.common.api.proto.MessageMetadata;
import org.apache.pulsar.common.api.proto.TxnAction;
import org.apache.pulsar.common.naming.SystemTopicNames;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.policies.data.BacklogQuota;
import org.apache.pulsar.common.policies.data.BacklogQuota.BacklogQuotaType;
import org.apache.pulsar.common.policies.data.InactiveTopicDeleteMode;
import org.apache.pulsar.common.policies.data.ManagedLedgerInternalStats.CursorStats;
import org.apache.pulsar.common.policies.data.ManagedLedgerInternalStats.LedgerInfo;
import org.apache.pulsar.common.policies.data.PersistentTopicInternalStats;
import org.apache.pulsar.common.policies.data.Policies;
import org.apache.pulsar.common.policies.data.RetentionPolicies;
import org.apache.pulsar.common.policies.data.SubscribeRate;
import org.apache.pulsar.common.policies.data.TopicPolicies;
import org.apache.pulsar.common.policies.data.TransactionBufferStats;
import org.apache.pulsar.common.policies.data.TransactionInBufferStats;
import org.apache.pulsar.common.policies.data.TransactionInPendingAckStats;
import org.apache.pulsar.common.policies.data.TransactionPendingAckStats;
import org.apache.pulsar.common.policies.data.stats.ConsumerStatsImpl;
import org.apache.pulsar.common.policies.data.stats.PublisherStatsImpl;
import org.apache.pulsar.common.policies.data.stats.ReplicatorStatsImpl;
import org.apache.pulsar.common.policies.data.stats.SubscriptionStatsImpl;
import org.apache.pulsar.common.policies.data.stats.TopicStatsImpl;
import org.apache.pulsar.common.protocol.Commands;
import org.apache.pulsar.common.protocol.schema.SchemaData;
import org.apache.pulsar.common.util.Codec;
import org.apache.pulsar.common.util.DateFormatter;
import org.apache.pulsar.common.util.FutureUtil;
import org.apache.pulsar.common.util.collections.ConcurrentOpenHashMap;
import org.apache.pulsar.compaction.CompactedTopic;
import org.apache.pulsar.compaction.CompactedTopicContext;
import org.apache.pulsar.compaction.CompactedTopicImpl;
import org.apache.pulsar.compaction.Compactor;
import org.apache.pulsar.compaction.CompactorMXBean;
import org.apache.pulsar.metadata.api.MetadataStoreException;
import org.apache.pulsar.policies.data.loadbalancer.NamespaceBundleStats;
import org.apache.pulsar.utils.StatsOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PersistentTopic extends AbstractTopic implements Topic, AddEntryCallback {
// Managed ledger associated with the topic
protected final ManagedLedger ledger;
// Subscriptions to this topic
private final ConcurrentOpenHashMap<String, PersistentSubscription> subscriptions;
private final ConcurrentOpenHashMap<String, Replicator> replicators;
static final String DEDUPLICATION_CURSOR_NAME = "pulsar.dedup";
private static final String TOPIC_EPOCH_PROPERTY_NAME = "pulsar.topic.epoch";
private static final double MESSAGE_EXPIRY_THRESHOLD = 1.5;
private static final long POLICY_UPDATE_FAILURE_RETRY_TIME_SECONDS = 60;
// topic has every published chunked message since topic is loaded
public boolean msgChunkPublished;
private Optional<DispatchRateLimiter> dispatchRateLimiter = Optional.empty();
private Optional<SubscribeRateLimiter> subscribeRateLimiter = Optional.empty();
private final long backloggedCursorThresholdEntries;
public static final int MESSAGE_RATE_BACKOFF_MS = 1000;
protected final MessageDeduplication messageDeduplication;
private static final long COMPACTION_NEVER_RUN = -0xfebecffeL;
private CompletableFuture<Long> currentCompaction = CompletableFuture.completedFuture(COMPACTION_NEVER_RUN);
private final CompactedTopic compactedTopic;
private CompletableFuture<MessageIdImpl> currentOffload = CompletableFuture.completedFuture(
(MessageIdImpl) MessageId.earliest);
private volatile Optional<ReplicatedSubscriptionsController> replicatedSubscriptionsController = Optional.empty();
private static final FastThreadLocal<TopicStatsHelper> threadLocalTopicStats =
new FastThreadLocal<TopicStatsHelper>() {
@Override
protected TopicStatsHelper initialValue() {
return new TopicStatsHelper();
}
};
private final AtomicLong pendingWriteOps = new AtomicLong(0);
private volatile double lastUpdatedAvgPublishRateInMsg = 0;
private volatile double lastUpdatedAvgPublishRateInByte = 0;
private volatile int maxUnackedMessagesOnSubscriptionApplied;
private volatile boolean isClosingOrDeleting = false;
private ScheduledFuture<?> fencedTopicMonitoringTask = null;
@Getter
protected final TransactionBuffer transactionBuffer;
private final LongAdder bytesOutFromRemovedSubscriptions = new LongAdder();
private final LongAdder msgOutFromRemovedSubscriptions = new LongAdder();
// Record the last time a data message (ie: not an internal Pulsar marker) is published on the topic
private long lastDataMessagePublishedTimestamp = 0;
private static class TopicStatsHelper {
public double averageMsgSize;
public double aggMsgRateIn;
public double aggMsgThroughputIn;
public double aggMsgThrottlingFailure;
public double aggMsgRateOut;
public double aggMsgThroughputOut;
public final ObjectObjectHashMap<String, PublisherStatsImpl> remotePublishersStats;
public TopicStatsHelper() {
remotePublishersStats = new ObjectObjectHashMap<>();
reset();
}
public void reset() {
averageMsgSize = 0;
aggMsgRateIn = 0;
aggMsgThroughputIn = 0;
aggMsgRateOut = 0;
aggMsgThrottlingFailure = 0;
aggMsgThroughputOut = 0;
remotePublishersStats.clear();
}
}
public PersistentTopic(String topic, ManagedLedger ledger, BrokerService brokerService) {
super(topic, brokerService);
this.ledger = ledger;
this.subscriptions = ConcurrentOpenHashMap.<String, PersistentSubscription>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.replicators = ConcurrentOpenHashMap.<String, Replicator>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.backloggedCursorThresholdEntries =
brokerService.pulsar().getConfiguration().getManagedLedgerCursorBackloggedThreshold();
registerTopicPolicyListener();
this.compactedTopic = new CompactedTopicImpl(brokerService.pulsar().getBookKeeperClient());
for (ManagedCursor cursor : ledger.getCursors()) {
if (cursor.getName().equals(DEDUPLICATION_CURSOR_NAME)
|| cursor.getName().startsWith(replicatorPrefix)) {
// This is not a regular subscription, we are going to
// ignore it for now and let the message dedup logic to take care of it
} else {
final String subscriptionName = Codec.decode(cursor.getName());
subscriptions.put(subscriptionName, createPersistentSubscription(subscriptionName, cursor,
PersistentSubscription.isCursorFromReplicatedSubscription(cursor), null));
// subscription-cursor gets activated by default: deactivate as there is no active subscription right
// now
subscriptions.get(subscriptionName).deactivateCursor();
}
}
this.messageDeduplication = new MessageDeduplication(brokerService.pulsar(), this, ledger);
if (ledger.getProperties().containsKey(TOPIC_EPOCH_PROPERTY_NAME)) {
topicEpoch = Optional.of(Long.parseLong(ledger.getProperties().get(TOPIC_EPOCH_PROPERTY_NAME)));
}
checkReplicatedSubscriptionControllerState();
TopicName topicName = TopicName.get(topic);
if (brokerService.getPulsar().getConfiguration().isTransactionCoordinatorEnabled()
&& !isEventSystemTopic(topicName)) {
this.transactionBuffer = brokerService.getPulsar()
.getTransactionBufferProvider().newTransactionBuffer(this);
} else {
this.transactionBuffer = new TransactionBufferDisable();
}
transactionBuffer.syncMaxReadPositionForNormalPublish((PositionImpl) ledger.getLastConfirmedEntry());
}
@Override
public CompletableFuture<Void> initialize() {
List<CompletableFuture<Void>> futures = new ArrayList<>();
futures.add(initTopicPolicy());
for (ManagedCursor cursor : ledger.getCursors()) {
if (cursor.getName().startsWith(replicatorPrefix)) {
String localCluster = brokerService.pulsar().getConfiguration().getClusterName();
String remoteCluster = PersistentReplicator.getRemoteCluster(cursor.getName());
futures.add(addReplicationCluster(remoteCluster, cursor, localCluster));
}
}
return FutureUtil.waitForAll(futures).thenCompose(__ ->
brokerService.pulsar().getPulsarResources().getNamespaceResources()
.getPoliciesAsync(TopicName.get(topic).getNamespaceObject())
.thenAccept(optPolicies -> {
if (!optPolicies.isPresent()) {
isEncryptionRequired = false;
updatePublishDispatcher();
updateResourceGroupLimiter(optPolicies);
initializeRateLimiterIfNeeded();
return;
}
Policies policies = optPolicies.get();
this.updateTopicPolicyByNamespacePolicy(policies);
initializeRateLimiterIfNeeded();
updatePublishDispatcher();
updateResourceGroupLimiter(optPolicies);
this.isEncryptionRequired = policies.encryption_required;
isAllowAutoUpdateSchema = policies.is_allow_auto_update_schema;
schemaValidationEnforced = policies.schema_validation_enforced;
}).exceptionally(ex -> {
log.warn("[{}] Error getting policies {} and isEncryptionRequired will be set to false",
topic, ex.getMessage());
isEncryptionRequired = false;
return null;
}));
}
// for testing purposes
@VisibleForTesting
PersistentTopic(String topic, BrokerService brokerService, ManagedLedger ledger,
MessageDeduplication messageDeduplication) {
super(topic, brokerService);
this.ledger = ledger;
this.messageDeduplication = messageDeduplication;
this.subscriptions = ConcurrentOpenHashMap.<String, PersistentSubscription>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.replicators = ConcurrentOpenHashMap.<String, Replicator>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.compactedTopic = new CompactedTopicImpl(brokerService.pulsar().getBookKeeperClient());
this.backloggedCursorThresholdEntries =
brokerService.pulsar().getConfiguration().getManagedLedgerCursorBackloggedThreshold();
if (brokerService.pulsar().getConfiguration().isTransactionCoordinatorEnabled()) {
this.transactionBuffer = brokerService.getPulsar()
.getTransactionBufferProvider().newTransactionBuffer(this);
} else {
this.transactionBuffer = new TransactionBufferDisable();
}
}
private void initializeRateLimiterIfNeeded() {
synchronized (dispatchRateLimiter) {
// dispatch rate limiter for topic
if (!dispatchRateLimiter.isPresent()
&& DispatchRateLimiter.isDispatchRateEnabled(topicPolicies.getDispatchRate().get())) {
this.dispatchRateLimiter = Optional.of(new DispatchRateLimiter(this, Type.TOPIC));
}
updateSubscribeRateLimiter();
// dispatch rate limiter for each subscription
subscriptions.forEach((name, subscription) -> {
Dispatcher dispatcher = subscription.getDispatcher();
if (dispatcher != null) {
dispatcher.initializeDispatchRateLimiterIfNeeded();
}
});
// dispatch rate limiter for each replicator
replicators.forEach((name, replicator) ->
replicator.initializeDispatchRateLimiterIfNeeded());
}
}
private PersistentSubscription createPersistentSubscription(String subscriptionName, ManagedCursor cursor,
boolean replicated, Map<String, String> subscriptionProperties) {
checkNotNull(compactedTopic);
if (subscriptionName.equals(COMPACTION_SUBSCRIPTION)) {
return new CompactorSubscription(this, compactedTopic, subscriptionName, cursor);
} else {
return new PersistentSubscription(this, subscriptionName, cursor, replicated, subscriptionProperties);
}
}
@Override
public void publishMessage(ByteBuf headersAndPayload, PublishContext publishContext) {
pendingWriteOps.incrementAndGet();
if (isFenced) {
publishContext.completed(new TopicFencedException("fenced"), -1, -1);
decrementPendingWriteOpsAndCheck();
return;
}
if (isExceedMaximumMessageSize(headersAndPayload.readableBytes(), publishContext)) {
publishContext.completed(new NotAllowedException("Exceed maximum message size")
, -1, -1);
decrementPendingWriteOpsAndCheck();
return;
}
MessageDeduplication.MessageDupStatus status =
messageDeduplication.isDuplicate(publishContext, headersAndPayload);
switch (status) {
case NotDup:
asyncAddEntry(headersAndPayload, publishContext);
break;
case Dup:
// Immediately acknowledge duplicated message
publishContext.completed(null, -1, -1);
decrementPendingWriteOpsAndCheck();
break;
default:
publishContext.completed(new MessageDeduplication.MessageDupUnknownException(), -1, -1);
decrementPendingWriteOpsAndCheck();
}
}
public void updateSubscribeRateLimiter() {
SubscribeRate subscribeRate = getSubscribeRate();
synchronized (subscribeRateLimiter) {
if (isSubscribeRateEnabled(subscribeRate)) {
if (subscribeRateLimiter.isPresent()) {
this.subscribeRateLimiter.get().onSubscribeRateUpdate(subscribeRate);
} else {
this.subscribeRateLimiter = Optional.of(new SubscribeRateLimiter(this));
}
} else {
if (subscribeRateLimiter.isPresent()) {
subscribeRateLimiter.get().close();
subscribeRateLimiter = Optional.empty();
}
}
}
}
private void asyncAddEntry(ByteBuf headersAndPayload, PublishContext publishContext) {
if (brokerService.isBrokerEntryMetadataEnabled()) {
ledger.asyncAddEntry(headersAndPayload,
(int) publishContext.getNumberOfMessages(), this, publishContext);
} else {
ledger.asyncAddEntry(headersAndPayload, this, publishContext);
}
}
public void asyncReadEntry(PositionImpl position, AsyncCallbacks.ReadEntryCallback callback, Object ctx) {
if (ledger instanceof ManagedLedgerImpl) {
((ManagedLedgerImpl) ledger).asyncReadEntry(position, callback, ctx);
} else {
callback.readEntryFailed(new ManagedLedgerException(
"Unexpected managedledger implementation, doesn't support "
+ "direct read entry operation."), ctx);
}
}
public PositionImpl getPositionAfterN(PositionImpl startPosition, long n) throws ManagedLedgerException {
if (ledger instanceof ManagedLedgerImpl) {
return ((ManagedLedgerImpl) ledger).getPositionAfterN(startPosition, n,
ManagedLedgerImpl.PositionBound.startExcluded);
} else {
throw new ManagedLedgerException("Unexpected managedledger implementation, doesn't support "
+ "getPositionAfterN operation.");
}
}
public PositionImpl getFirstPosition() throws ManagedLedgerException {
if (ledger instanceof ManagedLedgerImpl) {
return ((ManagedLedgerImpl) ledger).getFirstPosition();
} else {
throw new ManagedLedgerException("Unexpected managedledger implementation, doesn't support "
+ "getFirstPosition operation.");
}
}
public long getNumberOfEntries() {
return ledger.getNumberOfEntries();
}
private void decrementPendingWriteOpsAndCheck() {
long pending = pendingWriteOps.decrementAndGet();
if (pending == 0 && isFenced && !isClosingOrDeleting) {
synchronized (this) {
if (isFenced && !isClosingOrDeleting) {
messageDeduplication.resetHighestSequenceIdPushed();
log.info("[{}] Un-fencing topic...", topic);
// signal to managed ledger that we are ready to resume by creating a new ledger
ledger.readyToCreateNewLedger();
unfence();
}
}
}
}
@Override
public void addComplete(Position pos, ByteBuf entryData, Object ctx) {
PublishContext publishContext = (PublishContext) ctx;
PositionImpl position = (PositionImpl) pos;
// Message has been successfully persisted
messageDeduplication.recordMessagePersisted(publishContext, position);
if (!publishContext.isMarkerMessage()) {
lastDataMessagePublishedTimestamp = Clock.systemUTC().millis();
}
// in order to sync the max position when cursor read entries
transactionBuffer.syncMaxReadPositionForNormalPublish((PositionImpl) ledger.getLastConfirmedEntry());
publishContext.setMetadataFromEntryData(entryData);
publishContext.completed(null, position.getLedgerId(), position.getEntryId());
decrementPendingWriteOpsAndCheck();
}
@Override
public synchronized void addFailed(ManagedLedgerException exception, Object ctx) {
if (exception instanceof ManagedLedgerFencedException) {
// If the managed ledger has been fenced, we cannot continue using it. We need to close and reopen
close();
} else {
// fence topic when failed to write a message to BK
fence();
// close all producers
CompletableFuture<Void> disconnectProducersFuture;
if (producers.size() > 0) {
List<CompletableFuture<Void>> futures = Lists.newArrayList();
producers.forEach((__, producer) -> futures.add(producer.disconnect()));
disconnectProducersFuture = FutureUtil.waitForAll(futures);
} else {
disconnectProducersFuture = CompletableFuture.completedFuture(null);
}
disconnectProducersFuture.handle((BiFunction<Void, Throwable, Void>) (aVoid, throwable) -> {
decrementPendingWriteOpsAndCheck();
return null;
});
PublishContext callback = (PublishContext) ctx;
if (exception instanceof ManagedLedgerAlreadyClosedException) {
if (log.isDebugEnabled()) {
log.debug("[{}] Failed to persist msg in store: {}", topic, exception.getMessage());
}
callback.completed(new TopicClosedException(exception), -1, -1);
return;
} else {
log.warn("[{}] Failed to persist msg in store: {}", topic, exception.getMessage());
}
if (exception instanceof ManagedLedgerTerminatedException) {
// Signal the producer that this topic is no longer available
callback.completed(new TopicTerminatedException(exception), -1, -1);
} else {
// Use generic persistence exception
callback.completed(new PersistenceException(exception), -1, -1);
}
}
}
@Override
public CompletableFuture<Optional<Long>> addProducer(Producer producer,
CompletableFuture<Void> producerQueuedFuture) {
return super.addProducer(producer, producerQueuedFuture).thenCompose(topicEpoch -> {
messageDeduplication.producerAdded(producer.getProducerName());
// Start replication producers if not already
return startReplProducers().thenApply(__ -> topicEpoch);
});
}
@Override
public CompletableFuture<Void> checkIfTransactionBufferRecoverCompletely(boolean isTxnEnabled) {
return getTransactionBuffer().checkIfTBRecoverCompletely(isTxnEnabled);
}
@Override
protected CompletableFuture<Long> incrementTopicEpoch(Optional<Long> currentEpoch) {
long newEpoch = currentEpoch.orElse(-1L) + 1;
return setTopicEpoch(newEpoch);
}
@Override
protected CompletableFuture<Long> setTopicEpoch(long newEpoch) {
CompletableFuture<Long> future = new CompletableFuture<>();
ledger.asyncSetProperty(TOPIC_EPOCH_PROPERTY_NAME, String.valueOf(newEpoch), new UpdatePropertiesCallback() {
@Override
public void updatePropertiesComplete(Map<String, String> properties, Object ctx) {
log.info("[{}] Updated topic epoch to {}", getName(), newEpoch);
future.complete(newEpoch);
}
@Override
public void updatePropertiesFailed(ManagedLedgerException exception, Object ctx) {
log.warn("[{}] Failed to update topic epoch to {}: {}", getName(), newEpoch, exception.getMessage());
future.completeExceptionally(exception);
}
}, null);
return future;
}
private boolean hasRemoteProducers() {
if (producers.isEmpty()) {
return false;
}
for (Producer producer : producers.values()) {
if (producer.isRemote()) {
return true;
}
}
return false;
}
public CompletableFuture<Void> startReplProducers() {
// read repl-cluster from policies to avoid restart of replicator which are in process of disconnect and close
return brokerService.pulsar().getPulsarResources().getNamespaceResources()
.getPoliciesAsync(TopicName.get(topic).getNamespaceObject())
.thenAccept(optPolicies -> {
if (optPolicies.isPresent()) {
if (optPolicies.get().replication_clusters != null) {
Set<String> configuredClusters = Sets.newTreeSet(optPolicies.get().replication_clusters);
replicators.forEach((region, replicator) -> {
if (configuredClusters.contains(region)) {
replicator.startProducer();
}
});
}
} else {
replicators.forEach((region, replicator) -> replicator.startProducer());
}
}).exceptionally(ex -> {
if (log.isDebugEnabled()) {
log.debug("[{}] Error getting policies while starting repl-producers {}", topic, ex.getMessage());
}
replicators.forEach((region, replicator) -> replicator.startProducer());
return null;
});
}
public CompletableFuture<Void> stopReplProducers() {
List<CompletableFuture<Void>> closeFutures = Lists.newArrayList();
replicators.forEach((region, replicator) -> closeFutures.add(replicator.disconnect()));
return FutureUtil.waitForAll(closeFutures);
}
private synchronized CompletableFuture<Void> closeReplProducersIfNoBacklog() {
List<CompletableFuture<Void>> closeFutures = Lists.newArrayList();
replicators.forEach((region, replicator) -> closeFutures.add(replicator.disconnect(true)));
return FutureUtil.waitForAll(closeFutures);
}
@Override
protected void handleProducerRemoved(Producer producer) {
super.handleProducerRemoved(producer);
messageDeduplication.producerRemoved(producer.getProducerName());
}
@Override
public CompletableFuture<Consumer> subscribe(SubscriptionOption option) {
return internalSubscribe(option.getCnx(), option.getSubscriptionName(), option.getConsumerId(),
option.getSubType(), option.getPriorityLevel(), option.getConsumerName(), option.isDurable(),
option.getStartMessageId(), option.getMetadata(), option.isReadCompacted(),
option.getInitialPosition(), option.getStartMessageRollbackDurationSec(),
option.isReplicatedSubscriptionStateArg(), option.getKeySharedMeta(),
option.getSubscriptionProperties().orElse(Collections.emptyMap()), option.getConsumerEpoch());
}
private CompletableFuture<Consumer> internalSubscribe(final TransportCnx cnx, String subscriptionName,
long consumerId, SubType subType, int priorityLevel,
String consumerName, boolean isDurable,
MessageId startMessageId,
Map<String, String> metadata, boolean readCompacted,
InitialPosition initialPosition,
long startMessageRollbackDurationSec,
boolean replicatedSubscriptionStateArg,
KeySharedMeta keySharedMeta,
Map<String, String> subscriptionProperties,
long consumerEpoch) {
if (readCompacted && !(subType == SubType.Failover || subType == SubType.Exclusive)) {
return FutureUtil.failedFuture(new NotAllowedException(
"readCompacted only allowed on failover or exclusive subscriptions"));
}
return brokerService.checkTopicNsOwnership(getName()).thenCompose(__ -> {
boolean replicatedSubscriptionState = replicatedSubscriptionStateArg;
if (replicatedSubscriptionState
&& !brokerService.pulsar().getConfiguration().isEnableReplicatedSubscriptions()) {
log.warn("[{}] Replicated Subscription is disabled by broker.", getName());
replicatedSubscriptionState = false;
}
if (subType == SubType.Key_Shared
&& !brokerService.pulsar().getConfiguration().isSubscriptionKeySharedEnable()) {
return FutureUtil.failedFuture(
new NotAllowedException("Key_Shared subscription is disabled by broker."));
}
try {
if (!topic.endsWith(SystemTopicNames.NAMESPACE_EVENTS_LOCAL_NAME)
&& !checkSubscriptionTypesEnable(subType)) {
return FutureUtil.failedFuture(
new NotAllowedException("Topic[{" + topic + "}] doesn't support "
+ subType.name() + " sub type!"));
}
} catch (Exception e) {
return FutureUtil.failedFuture(e);
}
if (isBlank(subscriptionName)) {
if (log.isDebugEnabled()) {
log.debug("[{}] Empty subscription name", topic);
}
return FutureUtil.failedFuture(new NamingException("Empty subscription name"));
}
if (hasBatchMessagePublished && !cnx.isBatchMessageCompatibleVersion()) {
if (log.isDebugEnabled()) {
log.debug("[{}] Consumer doesn't support batch-message {}", topic, subscriptionName);
}
return FutureUtil.failedFuture(
new UnsupportedVersionException("Consumer doesn't support batch-message"));
}
if (subscriptionName.startsWith(replicatorPrefix)
|| subscriptionName.equals(DEDUPLICATION_CURSOR_NAME)) {
log.warn("[{}] Failed to create subscription for {}", topic, subscriptionName);
return FutureUtil.failedFuture(
new NamingException("Subscription with reserved subscription name attempted"));
}
if (cnx.clientAddress() != null && cnx.clientAddress().toString().contains(":")
&& subscribeRateLimiter.isPresent()) {
SubscribeRateLimiter.ConsumerIdentifier consumer = new SubscribeRateLimiter.ConsumerIdentifier(
cnx.clientAddress().toString().split(":")[0], consumerName, consumerId);
if (!subscribeRateLimiter.get().subscribeAvailable(consumer)
|| !subscribeRateLimiter.get().tryAcquire(consumer)) {
log.warn("[{}] Failed to create subscription for {} {} limited by {}, available {}",
topic, subscriptionName, consumer, subscribeRateLimiter.get().getSubscribeRate(),
subscribeRateLimiter.get().getAvailableSubscribeRateLimit(consumer));
return FutureUtil.failedFuture(
new NotAllowedException("Subscribe limited by subscribe rate limit per consumer."));
}
}
lock.readLock().lock();
try {
if (isFenced) {
log.warn("[{}] Attempting to subscribe to a fenced topic", topic);
return FutureUtil.failedFuture(new TopicFencedException("Topic is temporarily unavailable"));
}
handleConsumerAdded(subscriptionName, consumerName);
} finally {
lock.readLock().unlock();
}
CompletableFuture<? extends Subscription> subscriptionFuture = isDurable ? //
getDurableSubscription(subscriptionName, initialPosition, startMessageRollbackDurationSec,
replicatedSubscriptionState, subscriptionProperties)
: getNonDurableSubscription(subscriptionName, startMessageId, initialPosition,
startMessageRollbackDurationSec, readCompacted, subscriptionProperties);
CompletableFuture<Consumer> future = subscriptionFuture.thenCompose(subscription -> {
Consumer consumer = new Consumer(subscription, subType, topic, consumerId, priorityLevel,
consumerName, isDurable, cnx, cnx.getAuthRole(), metadata,
readCompacted, keySharedMeta, startMessageId, consumerEpoch);
return addConsumerToSubscription(subscription, consumer).thenCompose(v -> {
checkBackloggedCursors();
if (!cnx.isActive()) {
try {
consumer.close();
} catch (BrokerServiceException e) {
if (e instanceof ConsumerBusyException) {
log.warn("[{}][{}] Consumer {} {} already connected",
topic, subscriptionName, consumerId, consumerName);
} else if (e instanceof SubscriptionBusyException) {
log.warn("[{}][{}] {}", topic, subscriptionName, e.getMessage());
}
decrementUsageCount();
return FutureUtil.failedFuture(e);
}
if (log.isDebugEnabled()) {
log.debug("[{}] [{}] [{}] Subscribe failed -- count: {}", topic, subscriptionName,
consumer.consumerName(), currentUsageCount());
}
decrementUsageCount();
return FutureUtil.failedFuture(
new BrokerServiceException("Connection was closed while the opening the cursor "));
} else {
checkReplicatedSubscriptionControllerState();
log.info("[{}][{}] Created new subscription for {}", topic, subscriptionName, consumerId);
return CompletableFuture.completedFuture(consumer);
}
});
});
future.exceptionally(ex -> {
decrementUsageCount();
if (ex.getCause() instanceof ConsumerBusyException) {
log.warn("[{}][{}] Consumer {} {} already connected", topic, subscriptionName, consumerId,
consumerName);
Consumer consumer = null;
try {
consumer = subscriptionFuture.isDone() ? getActiveConsumer(subscriptionFuture.get()) : null;
// cleanup consumer if connection is already closed
if (consumer != null && !consumer.cnx().isActive()) {
consumer.close();
}
} catch (Exception be) {
log.error("Failed to clean up consumer on closed connection {}, {}", consumer, be.getMessage());
}
} else if (ex.getCause() instanceof SubscriptionBusyException) {
log.warn("[{}][{}] {}", topic, subscriptionName, ex.getMessage());
} else {
log.error("[{}] Failed to create subscription: {}", topic, subscriptionName, ex);
}
return null;
});
return future;
});
}
@Override
public CompletableFuture<Consumer> subscribe(final TransportCnx cnx, String subscriptionName, long consumerId,
SubType subType, int priorityLevel, String consumerName,
boolean isDurable, MessageId startMessageId,
Map<String, String> metadata, boolean readCompacted,
InitialPosition initialPosition,
long startMessageRollbackDurationSec,
boolean replicatedSubscriptionStateArg,
KeySharedMeta keySharedMeta) {
return internalSubscribe(cnx, subscriptionName, consumerId, subType, priorityLevel, consumerName,
isDurable, startMessageId, metadata, readCompacted, initialPosition, startMessageRollbackDurationSec,
replicatedSubscriptionStateArg, keySharedMeta, null, DEFAULT_CONSUMER_EPOCH);
}
private CompletableFuture<Subscription> getDurableSubscription(String subscriptionName,
InitialPosition initialPosition, long startMessageRollbackDurationSec, boolean replicated,
Map<String, String> subscriptionProperties) {
CompletableFuture<Subscription> subscriptionFuture = new CompletableFuture<>();
if (checkMaxSubscriptionsPerTopicExceed(subscriptionName)) {
subscriptionFuture.completeExceptionally(new NotAllowedException(
"Exceed the maximum number of subscriptions of the topic: " + topic));
return subscriptionFuture;
}
Map<String, Long> properties = PersistentSubscription.getBaseCursorProperties(replicated);
ledger.asyncOpenCursor(Codec.encode(subscriptionName), initialPosition, properties, new OpenCursorCallback() {
@Override
public void openCursorComplete(ManagedCursor cursor, Object ctx) {
if (log.isDebugEnabled()) {
log.debug("[{}][{}] Opened cursor", topic, subscriptionName);
}
PersistentSubscription subscription = subscriptions.get(subscriptionName);
if (subscription == null) {
subscription = subscriptions.computeIfAbsent(subscriptionName,
name -> createPersistentSubscription(subscriptionName, cursor,
replicated, subscriptionProperties));
} else {
// if subscription exists, check if it's a non-durable subscription
if (subscription.getCursor() != null && !subscription.getCursor().isDurable()) {
subscriptionFuture.completeExceptionally(
new NotAllowedException("NonDurable subscription with the same name already exists."));
return;
}
}
if (MapUtils.isEmpty(subscription.getSubscriptionProperties())
&& MapUtils.isNotEmpty(subscriptionProperties)) {
subscription.getSubscriptionProperties().putAll(subscriptionProperties);
}
if (replicated && !subscription.isReplicated()) {
// Flip the subscription state
subscription.setReplicated(replicated);
}
if (startMessageRollbackDurationSec > 0) {
resetSubscriptionCursor(subscription, subscriptionFuture, startMessageRollbackDurationSec);
} else {
subscriptionFuture.complete(subscription);
}
}
@Override
public void openCursorFailed(ManagedLedgerException exception, Object ctx) {
log.warn("[{}] Failed to create subscription for {}: {}", topic, subscriptionName,
exception.getMessage());
decrementUsageCount();
subscriptionFuture.completeExceptionally(new PersistenceException(exception));
if (exception instanceof ManagedLedgerFencedException) {
// If the managed ledger has been fenced, we cannot continue using it. We need to close and reopen
close();
}
}
}, null);
return subscriptionFuture;
}
private CompletableFuture<? extends Subscription> getNonDurableSubscription(String subscriptionName,
MessageId startMessageId, InitialPosition initialPosition, long startMessageRollbackDurationSec,
boolean isReadCompacted, Map<String, String> subscriptionProperties) {
log.info("[{}][{}] Creating non-durable subscription at msg id {} - {}",
topic, subscriptionName, startMessageId, subscriptionProperties);
CompletableFuture<Subscription> subscriptionFuture = new CompletableFuture<>();
if (checkMaxSubscriptionsPerTopicExceed(subscriptionName)) {
subscriptionFuture.completeExceptionally(new NotAllowedException(
"Exceed the maximum number of subscriptions of the topic: " + topic));
return subscriptionFuture;
}
synchronized (ledger) {
// Create a new non-durable cursor only for the first consumer that connects
PersistentSubscription subscription = subscriptions.get(subscriptionName);
if (subscription == null) {
MessageIdImpl msgId = startMessageId != null ? (MessageIdImpl) startMessageId
: (MessageIdImpl) MessageId.latest;
long ledgerId = msgId.getLedgerId();
long entryId = msgId.getEntryId();
// Ensure that the start message id starts from a valid entry.
if (ledgerId >= 0 && entryId >= 0
&& msgId instanceof BatchMessageIdImpl) {
// When the start message is relative to a batch, we need to take one step back on the previous
// message,
// because the "batch" might not have been consumed in its entirety.
// The client will then be able to discard the first messages if needed.
entryId = msgId.getEntryId() - 1;
}
Position startPosition = new PositionImpl(ledgerId, entryId);
ManagedCursor cursor = null;
try {
cursor = ledger.newNonDurableCursor(startPosition, subscriptionName, initialPosition,
isReadCompacted);
} catch (ManagedLedgerException e) {
return FutureUtil.failedFuture(e);
}
subscription = new PersistentSubscription(this, subscriptionName, cursor, false,
subscriptionProperties);
subscriptions.put(subscriptionName, subscription);
} else {
// if subscription exists, check if it's a durable subscription
if (subscription.getCursor() != null && subscription.getCursor().isDurable()) {
return FutureUtil.failedFuture(
new NotAllowedException("Durable subscription with the same name already exists."));
}
if (MapUtils.isEmpty(subscription.getSubscriptionProperties())
&& MapUtils.isNotEmpty(subscriptionProperties)) {
subscription.getSubscriptionProperties().putAll(subscriptionProperties);
}
}
if (startMessageRollbackDurationSec > 0) {
resetSubscriptionCursor(subscription, subscriptionFuture, startMessageRollbackDurationSec);
return subscriptionFuture;
} else {
return CompletableFuture.completedFuture(subscription);
}
}
}
private void resetSubscriptionCursor(Subscription subscription, CompletableFuture<Subscription> subscriptionFuture,
long startMessageRollbackDurationSec) {
long timestamp = System.currentTimeMillis()