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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 java.util.Objects.requireNonNull;
import static java.util.concurrent.TimeUnit.SECONDS;
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.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.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
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.ExecutorService;
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.AtomicReferenceFieldUpdater;
import java.util.function.BiFunction;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import lombok.Getter;
import lombok.Value;
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.ManagedLedgerException.NonRecoverableLedgerException;
import org.apache.bookkeeper.mledger.Position;
import org.apache.bookkeeper.mledger.impl.ManagedCursorContainer;
import org.apache.bookkeeper.mledger.impl.ManagedCursorContainer.CursorInfo;
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.mledger.impl.ShadowManagedLedgerImpl;
import org.apache.bookkeeper.mledger.util.Futures;
import org.apache.bookkeeper.net.BookieId;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.pulsar.broker.PulsarServerException;
import org.apache.pulsar.broker.delayed.BucketDelayedDeliveryTrackerFactory;
import org.apache.pulsar.broker.delayed.DelayedDeliveryTrackerFactory;
import org.apache.pulsar.broker.loadbalance.extensions.ExtensibleLoadManagerImpl;
import org.apache.pulsar.broker.loadbalance.extensions.channel.ServiceUnitStateChannelImpl;
import org.apache.pulsar.broker.loadbalance.extensions.channel.ServiceUnitStateCompactionStrategy;
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.SubscriptionConflictUnloadException;
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.TopicMigratedException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicTerminatedException;
import org.apache.pulsar.broker.service.BrokerServiceException.UnsupportedSubscriptionException;
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.GetStatsOptions;
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.admin.PulsarAdmin;
import org.apache.pulsar.client.admin.PulsarAdminException.ConflictException;
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.NamespaceName;
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.ClusterData;
import org.apache.pulsar.common.policies.data.ClusterPolicies.ClusterUrl;
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.TopicMetricBean;
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.protocol.schema.SchemaVersion;
import org.apache.pulsar.common.schema.SchemaType;
import org.apache.pulsar.common.topics.TopicCompactionStrategy;
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.CompactedTopicContext;
import org.apache.pulsar.compaction.CompactedTopicImpl;
import org.apache.pulsar.compaction.Compactor;
import org.apache.pulsar.compaction.CompactorMXBean;
import org.apache.pulsar.compaction.PulsarTopicCompactionService;
import org.apache.pulsar.compaction.TopicCompactionService;
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/*RemoteCluster*/, Replicator> replicators;
private final ConcurrentOpenHashMap<String/*ShadowTopic*/, Replicator> shadowReplicators;
@Getter
private volatile List<String> shadowTopics;
private final TopicName shadowSourceTopic;
static final String DEDUPLICATION_CURSOR_NAME = "pulsar.dedup";
public static boolean isDedupCursorName(String name) {
return DEDUPLICATION_CURSOR_NAME.equals(name);
}
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;
private static final String MIGRATION_CLUSTER_NAME = "migration-cluster";
private volatile boolean migrationSubsCreated = false;
// topic has every published chunked message since topic is loaded
public boolean msgChunkPublished;
private Optional<DispatchRateLimiter> dispatchRateLimiter = Optional.empty();
private final Object dispatchRateLimiterLock = new Object();
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 volatile CompletableFuture<Long> currentCompaction = CompletableFuture.completedFuture(
COMPACTION_NEVER_RUN);
private TopicCompactionService topicCompactionService;
// TODO: Create compaction strategy from topic policy when exposing strategic compaction to users.
private static Map<String, TopicCompactionStrategy> strategicCompactionMap = Map.of(
ServiceUnitStateChannelImpl.TOPIC,
new ServiceUnitStateCompactionStrategy());
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 boolean isClosingOrDeleting = false;
private ScheduledFuture<?> fencedTopicMonitoringTask = null;
@Getter
protected final TransactionBuffer transactionBuffer;
// Record the last time a data message (ie: not an internal Pulsar marker) is published on the topic
@Getter
private volatile long lastDataMessagePublishedTimestamp = 0;
@Getter
private final ExecutorService orderedExecutor;
@Getter
private final PersistentTopicMetrics persistentTopicMetrics = new PersistentTopicMetrics();
private volatile TimeBasedBacklogQuotaCheckResult timeBasedBacklogQuotaCheckResult;
private static final AtomicReferenceFieldUpdater<PersistentTopic, TimeBasedBacklogQuotaCheckResult>
TIME_BASED_BACKLOG_QUOTA_CHECK_RESULT_UPDATER = AtomicReferenceFieldUpdater.newUpdater(
PersistentTopic.class,
TimeBasedBacklogQuotaCheckResult.class,
"timeBasedBacklogQuotaCheckResult");
@Value
private static class TimeBasedBacklogQuotaCheckResult {
PositionImpl oldestCursorMarkDeletePosition;
String cursorName;
long positionPublishTimestampInMillis;
long dataVersion;
}
@Value
private static class EstimateTimeBasedBacklogQuotaCheckResult {
boolean truncateBacklogToMatchQuota;
Long estimatedOldestUnacknowledgedMessageTimestamp;
}
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);
// null check for backwards compatibility with tests which mock the broker service
this.orderedExecutor = brokerService.getTopicOrderedExecutor() != null
? brokerService.getTopicOrderedExecutor().chooseThread(topic)
: null;
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.shadowReplicators = ConcurrentOpenHashMap.<String, Replicator>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.backloggedCursorThresholdEntries =
brokerService.pulsar().getConfiguration().getManagedLedgerCursorBackloggedThreshold();
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)));
}
TopicName topicName = TopicName.get(topic);
if (brokerService.getPulsar().getConfiguration().isTransactionCoordinatorEnabled()
&& !isEventSystemTopic(topicName)
&& !NamespaceService.isHeartbeatNamespace(topicName.getNamespaceObject())) {
this.transactionBuffer = brokerService.getPulsar()
.getTransactionBufferProvider().newTransactionBuffer(this);
} else {
this.transactionBuffer = new TransactionBufferDisable(this);
}
transactionBuffer.syncMaxReadPositionForNormalPublish((PositionImpl) ledger.getLastConfirmedEntry());
if (ledger instanceof ShadowManagedLedgerImpl) {
shadowSourceTopic = TopicName.get(ledger.getConfig().getShadowSource());
} else {
shadowSourceTopic = null;
}
}
@Override
public CompletableFuture<Void> initialize() {
List<CompletableFuture<Void>> futures = new ArrayList<>();
futures.add(brokerService.getPulsar().newTopicCompactionService(topic).thenAccept(service -> {
PersistentTopic.this.topicCompactionService = service;
this.createPersistentSubscriptions();
}));
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())
.thenAcceptAsync(optPolicies -> {
if (!optPolicies.isPresent()) {
isEncryptionRequired = false;
updatePublishDispatcher();
updateResourceGroupLimiter(new Policies());
initializeDispatchRateLimiterIfNeeded();
updateSubscribeRateLimiter();
return;
}
Policies policies = optPolicies.get();
this.updateTopicPolicyByNamespacePolicy(policies);
initializeDispatchRateLimiterIfNeeded();
updateSubscribeRateLimiter();
updatePublishDispatcher();
updateResourceGroupLimiter(policies);
this.isEncryptionRequired = policies.encryption_required;
isAllowAutoUpdateSchema = policies.is_allow_auto_update_schema;
}, getOrderedExecutor())
.thenCompose(ignore -> initTopicPolicy())
.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);
// null check for backwards compatibility with tests which mock the broker service
this.orderedExecutor = brokerService.getTopicOrderedExecutor() != null
? brokerService.getTopicOrderedExecutor().chooseThread(topic)
: null;
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.shadowReplicators = ConcurrentOpenHashMap.<String, Replicator>newBuilder()
.expectedItems(16)
.concurrencyLevel(1)
.build();
this.backloggedCursorThresholdEntries =
brokerService.pulsar().getConfiguration().getManagedLedgerCursorBackloggedThreshold();
if (brokerService.pulsar().getConfiguration().isTransactionCoordinatorEnabled()) {
this.transactionBuffer = brokerService.getPulsar()
.getTransactionBufferProvider().newTransactionBuffer(this);
} else {
this.transactionBuffer = new TransactionBufferDisable(this);
}
shadowSourceTopic = null;
}
private void initializeDispatchRateLimiterIfNeeded() {
synchronized (dispatchRateLimiterLock) {
// dispatch rate limiter for topic
if (!dispatchRateLimiter.isPresent()
&& DispatchRateLimiter.isDispatchRateEnabled(topicPolicies.getDispatchRate().get())) {
this.dispatchRateLimiter = Optional.of(new DispatchRateLimiter(this, Type.TOPIC));
}
}
}
@VisibleForTesting
public AtomicLong getPendingWriteOps() {
return pendingWriteOps;
}
private void createPersistentSubscriptions() {
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),
cursor.getCursorProperties()));
// subscription-cursor gets activated by default: deactivate as there is no active subscription
// right now
subscriptions.get(subscriptionName).deactivateCursor();
}
}
checkReplicatedSubscriptionControllerState();
}
/**
* Unload a subscriber.
* @throws SubscriptionNotFoundException If subscription not founded.
* @throws UnsupportedSubscriptionException If the subscription is typed compaction.
* @throws SubscriptionConflictUnloadException Conflict topic-close, topic-delete, another-subscribe-unload,
* cannot unload subscription now
*/
public CompletableFuture<Void> unloadSubscription(@Nonnull String subName) {
final PersistentSubscription sub = subscriptions.get(subName);
if (sub == null) {
return CompletableFuture.failedFuture(
new SubscriptionNotFoundException(String.format("Subscription %s not found", subName)));
}
if (Compactor.COMPACTION_SUBSCRIPTION.equals(sub.getName())){
return CompletableFuture.failedFuture(
new UnsupportedSubscriptionException(String.format("Unsupported subscription: %s", subName)));
}
// Fence old subscription -> Rewind cursor -> Replace with a new subscription.
return sub.close(true, Optional.empty()).thenCompose(ignore -> {
if (!lock.writeLock().tryLock()) {
return CompletableFuture.failedFuture(new SubscriptionConflictUnloadException(String.format("Conflict"
+ " topic-close, topic-delete, another-subscribe-unload, cannot unload subscription %s now",
subName)));
}
try {
if (isFenced) {
return CompletableFuture.failedFuture(new TopicFencedException(String.format(
"Topic[%s] is fenced, can not unload subscription %s now", topic, subName)));
}
if (sub != subscriptions.get(subName)) {
// Another task already finished.
return CompletableFuture.failedFuture(new SubscriptionConflictUnloadException(String.format(
"Another unload subscriber[%s] has been finished, do not repeat call.", subName)));
}
sub.getCursor().rewind();
PersistentSubscription subNew = PersistentTopic.this.createPersistentSubscription(sub.getName(),
sub.getCursor(), sub.isReplicated(), sub.getSubscriptionProperties());
subscriptions.put(subName, subNew);
return CompletableFuture.completedFuture(null);
} finally {
lock.writeLock().unlock();
}
});
}
private PersistentSubscription createPersistentSubscription(String subscriptionName, ManagedCursor cursor,
boolean replicated, Map<String, String> subscriptionProperties) {
requireNonNull(topicCompactionService);
if (isCompactionSubscription(subscriptionName)
&& topicCompactionService instanceof PulsarTopicCompactionService pulsarTopicCompactionService) {
CompactedTopicImpl compactedTopic = pulsarTopicCompactionService.getCompactedTopic();
return new PulsarCompactorSubscription(this, compactedTopic, subscriptionName, cursor);
} else {
return new PersistentSubscription(this, subscriptionName, cursor, replicated, subscriptionProperties);
}
}
private static boolean isCompactionSubscription(String subscriptionName) {
return COMPACTION_SUBSCRIPTION.equals(subscriptionName);
}
@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 the topic is being transferred(in the Releasing bundle state),
we don't want to forcefully close topic here.
Instead, we will rely on the service unit state channel's bundle(topic) transfer protocol.
At the end of the transfer protocol, at Owned state, the source broker should close the topic properly.
*/
if (transferring) {
if (log.isDebugEnabled()) {
log.debug("[{}] Failed to persist msg in store: {} while transferring.",
topic, exception.getMessage(), exception);
}
return;
}
PublishContext callback = (PublishContext) 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 = new ArrayList<>();
// send migration url metadata to producers before disconnecting them
if (isMigrated()) {
if (!shouldProducerMigrate()) {
log.info("Topic {} is migrated but replication-backlog exists or "
+ "subs not created. Closing producers.", topic);
} else {
producers.forEach((__, producer) -> producer.topicMigrated(getMigratedClusterUrl()));
}
}
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;
});
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 && !isMigrated()) {
// 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())
.thenAcceptAsync(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());
}
}, getOrderedExecutor()).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 = new ArrayList<>();
replicators.forEach((region, replicator) -> closeFutures.add(replicator.disconnect()));
shadowReplicators.forEach((__, replicator) -> closeFutures.add(replicator.disconnect()));
return FutureUtil.waitForAll(closeFutures);
}
private synchronized CompletableFuture<Void> closeReplProducersIfNoBacklog() {
List<CompletableFuture<Void>> closeFutures = new ArrayList<>();
replicators.forEach((region, replicator) -> closeFutures.add(replicator.disconnect(true)));
shadowReplicators.forEach((__, 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(), option.getSchemaType());
}
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,
SchemaType schemaType) {
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 (!SystemTopicNames.isTopicPoliciesSystemTopic(topic)
&& !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, schemaType);
return addConsumerToSubscription(subscription, consumer).thenCompose(v -> {
if (subscription instanceof PersistentSubscription persistentSubscription) {
checkBackloggedCursor(persistentSubscription);
}
if (!cnx.isActive()) {
try {
consumer.close();
} catch (BrokerServiceException e) {
if (e instanceof ConsumerBusyException) {
log.warn("[{}][{}] Consumer {} {} already connected: {}",
topic, subscriptionName, consumerId, consumerName, e.getMessage());
} 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();
if (log.isDebugEnabled()) {
log.debug("[{}][{}] 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, ex.getCause().getMessage());
Consumer consumer = null;
try {