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AbstractTopic.java
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AbstractTopic.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;
import static com.google.common.base.Preconditions.checkArgument;
import static org.apache.bookkeeper.mledger.impl.ManagedLedgerMBeanImpl.ENTRY_LATENCY_BUCKETS_USEC;
import com.google.common.base.MoreObjects;
import com.google.common.collect.Lists;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Queue;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import java.util.concurrent.atomic.LongAdder;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import lombok.Getter;
import org.apache.bookkeeper.mledger.util.StatsBuckets;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.MapUtils;
import org.apache.commons.lang3.tuple.Pair;
import org.apache.pulsar.broker.ServiceConfiguration;
import org.apache.pulsar.broker.resourcegroup.ResourceGroup;
import org.apache.pulsar.broker.resourcegroup.ResourceGroupPublishLimiter;
import org.apache.pulsar.broker.service.BrokerServiceException.ConsumerBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.ProducerBusyException;
import org.apache.pulsar.broker.service.BrokerServiceException.ProducerFencedException;
import org.apache.pulsar.broker.service.BrokerServiceException.TopicTerminatedException;
import org.apache.pulsar.broker.service.schema.BookkeeperSchemaStorage;
import org.apache.pulsar.broker.service.schema.SchemaRegistryService;
import org.apache.pulsar.broker.service.schema.exceptions.IncompatibleSchemaException;
import org.apache.pulsar.broker.stats.prometheus.metrics.Summary;
import org.apache.pulsar.common.api.proto.CommandSubscribe.SubType;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.policies.data.BacklogQuota;
import org.apache.pulsar.common.policies.data.DelayedDeliveryPolicies;
import org.apache.pulsar.common.policies.data.HierarchyTopicPolicies;
import org.apache.pulsar.common.policies.data.InactiveTopicPolicies;
import org.apache.pulsar.common.policies.data.Policies;
import org.apache.pulsar.common.policies.data.PublishRate;
import org.apache.pulsar.common.policies.data.RetentionPolicies;
import org.apache.pulsar.common.policies.data.SchemaCompatibilityStrategy;
import org.apache.pulsar.common.policies.data.SubscribeRate;
import org.apache.pulsar.common.policies.data.SubscriptionPolicies;
import org.apache.pulsar.common.policies.data.TopicPolicies;
import org.apache.pulsar.common.policies.data.impl.DispatchRateImpl;
import org.apache.pulsar.common.protocol.schema.SchemaData;
import org.apache.pulsar.common.protocol.schema.SchemaVersion;
import org.apache.pulsar.common.util.FutureUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class AbstractTopic implements Topic, TopicPolicyListener<TopicPolicies> {
protected static final long POLICY_UPDATE_FAILURE_RETRY_TIME_SECONDS = 60;
protected final String topic;
// Producers currently connected to this topic
protected final ConcurrentHashMap<String, Producer> producers;
protected final BrokerService brokerService;
// Prefix for replication cursors
protected final String replicatorPrefix;
protected final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
protected volatile boolean isFenced;
protected final HierarchyTopicPolicies topicPolicies;
// Timestamp of when this topic was last seen active
protected volatile long lastActive;
// Flag to signal that producer of this topic has published batch-message so, broker should not allow consumer which
// doesn't support batch-message
protected volatile boolean hasBatchMessagePublished = false;
protected StatsBuckets addEntryLatencyStatsUsec = new StatsBuckets(ENTRY_LATENCY_BUCKETS_USEC);
// Whether messages published must be encrypted or not in this topic
protected volatile boolean isEncryptionRequired = false;
protected volatile Boolean isAllowAutoUpdateSchema;
// schema validation enforced flag
protected volatile boolean schemaValidationEnforced = false;
protected volatile PublishRateLimiter topicPublishRateLimiter;
protected volatile ResourceGroupPublishLimiter resourceGroupPublishLimiter;
protected boolean preciseTopicPublishRateLimitingEnable;
@Getter
protected boolean resourceGroupRateLimitingEnabled;
private LongAdder bytesInCounter = new LongAdder();
private LongAdder msgInCounter = new LongAdder();
private final LongAdder filteredEntriesCounter = new LongAdder();
private static final AtomicLongFieldUpdater<AbstractTopic> RATE_LIMITED_UPDATER =
AtomicLongFieldUpdater.newUpdater(AbstractTopic.class, "publishRateLimitedTimes");
protected volatile long publishRateLimitedTimes = 0;
protected volatile Optional<Long> topicEpoch = Optional.empty();
private volatile boolean hasExclusiveProducer;
// pointer to the exclusive producer
private volatile String exclusiveProducerName;
private final Queue<Pair<Producer, CompletableFuture<Optional<Long>>>> waitingExclusiveProducers =
new ConcurrentLinkedQueue<>();
private static final AtomicLongFieldUpdater<AbstractTopic> USAGE_COUNT_UPDATER =
AtomicLongFieldUpdater.newUpdater(AbstractTopic.class, "usageCount");
private volatile long usageCount = 0;
private Map<String/*subscription*/, SubscriptionPolicies> subscriptionPolicies = Collections.emptyMap();
public AbstractTopic(String topic, BrokerService brokerService) {
this.topic = topic;
this.brokerService = brokerService;
this.producers = new ConcurrentHashMap<>();
this.isFenced = false;
ServiceConfiguration config = brokerService.pulsar().getConfiguration();
this.replicatorPrefix = config.getReplicatorPrefix();
topicPolicies = new HierarchyTopicPolicies();
updateTopicPolicyByBrokerConfig();
this.lastActive = System.nanoTime();
this.preciseTopicPublishRateLimitingEnable = config.isPreciseTopicPublishRateLimiterEnable();
}
public SubscribeRate getSubscribeRate() {
return this.topicPolicies.getSubscribeRate().get();
}
public DispatchRateImpl getSubscriptionDispatchRate(String subscriptionName) {
return Optional.ofNullable(subscriptionPolicies.get(subscriptionName))
.map(SubscriptionPolicies::getDispatchRate)
.map(DispatchRateImpl::normalize)
.orElse(this.topicPolicies.getSubscriptionDispatchRate().get());
}
public SchemaCompatibilityStrategy getSchemaCompatibilityStrategy() {
return this.topicPolicies.getSchemaCompatibilityStrategy().get();
}
public DispatchRateImpl getDispatchRate() {
return this.topicPolicies.getDispatchRate().get();
}
public DispatchRateImpl getReplicatorDispatchRate() {
return this.topicPolicies.getReplicatorDispatchRate().get();
}
private SchemaCompatibilityStrategy formatSchemaCompatibilityStrategy(SchemaCompatibilityStrategy strategy) {
return strategy == SchemaCompatibilityStrategy.UNDEFINED ? null : strategy;
}
protected void updateTopicPolicy(TopicPolicies data) {
if (!isSystemTopic()) {
// Only use namespace level setting for system topic.
topicPolicies.getReplicationClusters().updateTopicValue(data.getReplicationClusters());
topicPolicies.getSchemaCompatibilityStrategy()
.updateTopicValue(formatSchemaCompatibilityStrategy(data.getSchemaCompatibilityStrategy()));
}
topicPolicies.getRetentionPolicies().updateTopicValue(data.getRetentionPolicies());
topicPolicies.getMaxSubscriptionsPerTopic().updateTopicValue(data.getMaxSubscriptionsPerTopic());
topicPolicies.getMaxUnackedMessagesOnConsumer().updateTopicValue(data.getMaxUnackedMessagesOnConsumer());
topicPolicies.getMaxUnackedMessagesOnSubscription()
.updateTopicValue(data.getMaxUnackedMessagesOnSubscription());
topicPolicies.getMaxProducersPerTopic().updateTopicValue(data.getMaxProducerPerTopic());
topicPolicies.getMaxConsumerPerTopic().updateTopicValue(data.getMaxConsumerPerTopic());
topicPolicies.getMaxConsumersPerSubscription().updateTopicValue(data.getMaxConsumersPerSubscription());
topicPolicies.getInactiveTopicPolicies().updateTopicValue(data.getInactiveTopicPolicies());
topicPolicies.getDeduplicationEnabled().updateTopicValue(data.getDeduplicationEnabled());
topicPolicies.getDeduplicationSnapshotIntervalSeconds().updateTopicValue(
data.getDeduplicationSnapshotIntervalSeconds());
topicPolicies.getSubscriptionTypesEnabled().updateTopicValue(
CollectionUtils.isEmpty(data.getSubscriptionTypesEnabled()) ? null :
EnumSet.copyOf(data.getSubscriptionTypesEnabled()));
Arrays.stream(BacklogQuota.BacklogQuotaType.values()).forEach(type ->
this.topicPolicies.getBackLogQuotaMap().get(type).updateTopicValue(
data.getBackLogQuotaMap() == null ? null : data.getBackLogQuotaMap().get(type.toString())));
topicPolicies.getTopicMaxMessageSize().updateTopicValue(data.getMaxMessageSize());
topicPolicies.getMessageTTLInSeconds().updateTopicValue(data.getMessageTTLInSeconds());
topicPolicies.getPublishRate().updateTopicValue(PublishRate.normalize(data.getPublishRate()));
topicPolicies.getDelayedDeliveryEnabled().updateTopicValue(data.getDelayedDeliveryEnabled());
topicPolicies.getReplicatorDispatchRate().updateTopicValue(
DispatchRateImpl.normalize(data.getReplicatorDispatchRate()));
topicPolicies.getDelayedDeliveryTickTimeMillis().updateTopicValue(data.getDelayedDeliveryTickTimeMillis());
topicPolicies.getSubscribeRate().updateTopicValue(SubscribeRate.normalize(data.getSubscribeRate()));
topicPolicies.getSubscriptionDispatchRate().updateTopicValue(
DispatchRateImpl.normalize(data.getSubscriptionDispatchRate()));
topicPolicies.getCompactionThreshold().updateTopicValue(data.getCompactionThreshold());
topicPolicies.getDispatchRate().updateTopicValue(DispatchRateImpl.normalize(data.getDispatchRate()));
this.subscriptionPolicies = data.getSubscriptionPolicies();
}
protected void updateTopicPolicyByNamespacePolicy(Policies namespacePolicies) {
if (log.isDebugEnabled()) {
log.debug("[{}]updateTopicPolicyByNamespacePolicy,data={}", topic, namespacePolicies);
}
if (namespacePolicies.deleted) {
return;
}
topicPolicies.getRetentionPolicies().updateNamespaceValue(namespacePolicies.retention_policies);
topicPolicies.getCompactionThreshold().updateNamespaceValue(namespacePolicies.compaction_threshold);
topicPolicies.getReplicationClusters().updateNamespaceValue(
Lists.newArrayList(CollectionUtils.emptyIfNull(namespacePolicies.replication_clusters)));
topicPolicies.getMaxUnackedMessagesOnConsumer()
.updateNamespaceValue(namespacePolicies.max_unacked_messages_per_consumer);
topicPolicies.getMaxUnackedMessagesOnSubscription()
.updateNamespaceValue(namespacePolicies.max_unacked_messages_per_subscription);
topicPolicies.getMessageTTLInSeconds().updateNamespaceValue(namespacePolicies.message_ttl_in_seconds);
topicPolicies.getMaxSubscriptionsPerTopic().updateNamespaceValue(namespacePolicies.max_subscriptions_per_topic);
topicPolicies.getMaxProducersPerTopic().updateNamespaceValue(namespacePolicies.max_producers_per_topic);
topicPolicies.getMaxConsumerPerTopic().updateNamespaceValue(namespacePolicies.max_consumers_per_topic);
topicPolicies.getMaxConsumersPerSubscription()
.updateNamespaceValue(namespacePolicies.max_consumers_per_subscription);
topicPolicies.getInactiveTopicPolicies().updateNamespaceValue(namespacePolicies.inactive_topic_policies);
topicPolicies.getDeduplicationEnabled().updateNamespaceValue(namespacePolicies.deduplicationEnabled);
topicPolicies.getDeduplicationSnapshotIntervalSeconds().updateNamespaceValue(
namespacePolicies.deduplicationSnapshotIntervalSeconds);
updateNamespacePublishRate(namespacePolicies, brokerService.getPulsar().getConfig().getClusterName());
topicPolicies.getDelayedDeliveryEnabled().updateNamespaceValue(
Optional.ofNullable(namespacePolicies.delayed_delivery_policies)
.map(DelayedDeliveryPolicies::isActive).orElse(null));
topicPolicies.getDelayedDeliveryTickTimeMillis().updateNamespaceValue(
Optional.ofNullable(namespacePolicies.delayed_delivery_policies)
.map(DelayedDeliveryPolicies::getTickTime).orElse(null));
topicPolicies.getSubscriptionTypesEnabled().updateNamespaceValue(
subTypeStringsToEnumSet(namespacePolicies.subscription_types_enabled));
updateNamespaceReplicatorDispatchRate(namespacePolicies,
brokerService.getPulsar().getConfig().getClusterName());
Arrays.stream(BacklogQuota.BacklogQuotaType.values()).forEach(
type -> this.topicPolicies.getBackLogQuotaMap().get(type)
.updateNamespaceValue(MapUtils.getObject(namespacePolicies.backlog_quota_map, type)));
updateNamespaceSubscribeRate(namespacePolicies, brokerService.getPulsar().getConfig().getClusterName());
updateNamespaceSubscriptionDispatchRate(namespacePolicies,
brokerService.getPulsar().getConfig().getClusterName());
updateSchemaCompatibilityStrategyNamespaceValue(namespacePolicies);
updateNamespaceDispatchRate(namespacePolicies, brokerService.getPulsar().getConfig().getClusterName());
}
private void updateNamespaceDispatchRate(Policies namespacePolicies, String cluster) {
DispatchRateImpl dispatchRate = namespacePolicies.topicDispatchRate.get(cluster);
if (dispatchRate == null) {
dispatchRate = namespacePolicies.clusterDispatchRate.get(cluster);
}
topicPolicies.getDispatchRate().updateNamespaceValue(DispatchRateImpl.normalize(dispatchRate));
}
private void updateNamespaceSubscribeRate(Policies namespacePolicies, String cluster) {
topicPolicies.getSubscribeRate()
.updateNamespaceValue(SubscribeRate.normalize(namespacePolicies.clusterSubscribeRate.get(cluster)));
}
private void updateNamespaceSubscriptionDispatchRate(Policies namespacePolicies, String cluster) {
topicPolicies.getSubscriptionDispatchRate()
.updateNamespaceValue(DispatchRateImpl.normalize(namespacePolicies.subscriptionDispatchRate.get(cluster)));
}
private void updateNamespaceReplicatorDispatchRate(Policies namespacePolicies, String cluster) {
topicPolicies.getReplicatorDispatchRate()
.updateNamespaceValue(DispatchRateImpl.normalize(namespacePolicies.replicatorDispatchRate.get(cluster)));
}
private void updateSchemaCompatibilityStrategyNamespaceValue(Policies namespacePolicies){
if (isSystemTopic()) {
return;
}
SchemaCompatibilityStrategy strategy = namespacePolicies.schema_compatibility_strategy;
if (SchemaCompatibilityStrategy.isUndefined(namespacePolicies.schema_compatibility_strategy)) {
strategy = SchemaCompatibilityStrategy.fromAutoUpdatePolicy(
namespacePolicies.schema_auto_update_compatibility_strategy);
}
topicPolicies.getSchemaCompatibilityStrategy()
.updateNamespaceValue(formatSchemaCompatibilityStrategy(strategy));
}
private void updateNamespacePublishRate(Policies namespacePolicies, String cluster) {
topicPolicies.getPublishRate().updateNamespaceValue(
PublishRate.normalize(
namespacePolicies.publishMaxMessageRate != null
? namespacePolicies.publishMaxMessageRate.get(cluster)
: null));
}
private void updateTopicPolicyByBrokerConfig() {
ServiceConfiguration config = brokerService.pulsar().getConfiguration();
topicPolicies.getInactiveTopicPolicies().updateBrokerValue(new InactiveTopicPolicies(
config.getBrokerDeleteInactiveTopicsMode(),
config.getBrokerDeleteInactiveTopicsMaxInactiveDurationSeconds(),
config.isBrokerDeleteInactiveTopicsEnabled()));
updateBrokerSubscriptionTypesEnabled();
topicPolicies.getMaxSubscriptionsPerTopic().updateBrokerValue(config.getMaxSubscriptionsPerTopic());
topicPolicies.getMaxProducersPerTopic().updateBrokerValue(config.getMaxProducersPerTopic());
topicPolicies.getMaxConsumerPerTopic().updateBrokerValue(config.getMaxConsumersPerTopic());
topicPolicies.getMaxConsumersPerSubscription().updateBrokerValue(config.getMaxConsumersPerSubscription());
topicPolicies.getDeduplicationEnabled().updateBrokerValue(config.isBrokerDeduplicationEnabled());
topicPolicies.getRetentionPolicies().updateBrokerValue(new RetentionPolicies(
config.getDefaultRetentionTimeInMinutes(), config.getDefaultRetentionSizeInMB()));
topicPolicies.getDeduplicationSnapshotIntervalSeconds().updateBrokerValue(
config.getBrokerDeduplicationSnapshotIntervalSeconds());
topicPolicies.getMaxUnackedMessagesOnConsumer()
.updateBrokerValue(config.getMaxUnackedMessagesPerConsumer());
topicPolicies.getMaxUnackedMessagesOnSubscription()
.updateBrokerValue(config.getMaxUnackedMessagesPerSubscription());
//init backlogQuota
topicPolicies.getBackLogQuotaMap()
.get(BacklogQuota.BacklogQuotaType.destination_storage)
.updateBrokerValue(brokerService.getBacklogQuotaManager().getDefaultQuota());
topicPolicies.getBackLogQuotaMap()
.get(BacklogQuota.BacklogQuotaType.message_age)
.updateBrokerValue(brokerService.getBacklogQuotaManager().getDefaultQuota());
topicPolicies.getTopicMaxMessageSize().updateBrokerValue(config.getMaxMessageSize());
topicPolicies.getMessageTTLInSeconds().updateBrokerValue(config.getTtlDurationDefaultInSeconds());
topicPolicies.getPublishRate().updateBrokerValue(publishRateInBroker(config));
topicPolicies.getDelayedDeliveryEnabled().updateBrokerValue(config.isDelayedDeliveryEnabled());
topicPolicies.getDelayedDeliveryTickTimeMillis().updateBrokerValue(config.getDelayedDeliveryTickTimeMillis());
topicPolicies.getCompactionThreshold().updateBrokerValue(config.getBrokerServiceCompactionThresholdInBytes());
topicPolicies.getReplicationClusters().updateBrokerValue(Collections.emptyList());
SchemaCompatibilityStrategy schemaCompatibilityStrategy = config.getSchemaCompatibilityStrategy();
topicPolicies.getReplicatorDispatchRate().updateBrokerValue(replicatorDispatchRateInBroker(config));
if (isSystemTopic()) {
schemaCompatibilityStrategy = config.getSystemTopicSchemaCompatibilityStrategy();
}
topicPolicies.getSubscribeRate().updateBrokerValue(subscribeRateInBroker(config));
topicPolicies.getSubscriptionDispatchRate().updateBrokerValue(subscriptionDispatchRateInBroker(config));
topicPolicies.getSchemaCompatibilityStrategy()
.updateBrokerValue(formatSchemaCompatibilityStrategy(schemaCompatibilityStrategy));
topicPolicies.getDispatchRate().updateBrokerValue(dispatchRateInBroker(config));
}
private DispatchRateImpl dispatchRateInBroker(ServiceConfiguration config) {
return DispatchRateImpl.builder()
.dispatchThrottlingRateInMsg(config.getDispatchThrottlingRatePerTopicInMsg())
.dispatchThrottlingRateInByte(config.getDispatchThrottlingRatePerTopicInByte())
.ratePeriodInSecond(1)
.build();
}
private SubscribeRate subscribeRateInBroker(ServiceConfiguration config) {
return new SubscribeRate(
config.getSubscribeThrottlingRatePerConsumer(),
config.getSubscribeRatePeriodPerConsumerInSecond()
);
}
private DispatchRateImpl subscriptionDispatchRateInBroker(ServiceConfiguration config) {
return DispatchRateImpl.builder()
.dispatchThrottlingRateInMsg(config.getDispatchThrottlingRatePerSubscriptionInMsg())
.dispatchThrottlingRateInByte(config.getDispatchThrottlingRatePerSubscriptionInByte())
.ratePeriodInSecond(1)
.build();
}
private DispatchRateImpl replicatorDispatchRateInBroker(ServiceConfiguration config) {
return DispatchRateImpl.builder()
.dispatchThrottlingRateInMsg(config.getDispatchThrottlingRatePerReplicatorInMsg())
.dispatchThrottlingRateInByte(config.getDispatchThrottlingRatePerReplicatorInByte())
.ratePeriodInSecond(1)
.build();
}
private EnumSet<SubType> subTypeStringsToEnumSet(Set<String> getSubscriptionTypesEnabled) {
EnumSet<SubType> subTypes = EnumSet.noneOf(SubType.class);
for (String subTypeStr : CollectionUtils.emptyIfNull(getSubscriptionTypesEnabled)) {
try {
SubType subType = SubType.valueOf(subTypeStr);
subTypes.add(subType);
} catch (Throwable t) {
//ignore invalid SubType strings.
}
}
if (subTypes.isEmpty()) {
return null;
} else {
return subTypes;
}
}
private PublishRate publishRateInBroker(ServiceConfiguration config) {
return new PublishRate(config.getMaxPublishRatePerTopicInMessages(), config.getMaxPublishRatePerTopicInBytes());
}
protected boolean isProducersExceeded() {
Integer maxProducers = topicPolicies.getMaxProducersPerTopic().get();
if (maxProducers > 0 && maxProducers <= producers.size()) {
return true;
}
return false;
}
protected void registerTopicPolicyListener() {
if (brokerService.pulsar().getConfig().isSystemTopicEnabled()
&& brokerService.pulsar().getConfig().isTopicLevelPoliciesEnabled()) {
brokerService.getPulsar().getTopicPoliciesService()
.registerListener(TopicName.getPartitionedTopicName(topic), this);
}
}
protected void unregisterTopicPolicyListener() {
if (brokerService.pulsar().getConfig().isSystemTopicEnabled()
&& brokerService.pulsar().getConfig().isTopicLevelPoliciesEnabled()) {
brokerService.getPulsar().getTopicPoliciesService()
.unregisterListener(TopicName.getPartitionedTopicName(topic), this);
}
}
protected boolean isSameAddressProducersExceeded(Producer producer) {
final int maxSameAddressProducers = brokerService.pulsar().getConfiguration()
.getMaxSameAddressProducersPerTopic();
if (maxSameAddressProducers > 0
&& getNumberOfSameAddressProducers(producer.getClientAddress()) >= maxSameAddressProducers) {
return true;
}
return false;
}
public int getNumberOfSameAddressProducers(final String clientAddress) {
int count = 0;
if (clientAddress != null) {
for (Producer producer : producers.values()) {
if (clientAddress.equals(producer.getClientAddress())) {
count++;
}
}
}
return count;
}
protected boolean isConsumersExceededOnTopic() {
int maxConsumersPerTopic = topicPolicies.getMaxConsumerPerTopic().get();
if (maxConsumersPerTopic > 0 && maxConsumersPerTopic <= getNumberOfConsumers()) {
return true;
}
return false;
}
protected boolean isSameAddressConsumersExceededOnTopic(Consumer consumer) {
final int maxSameAddressConsumers = brokerService.pulsar().getConfiguration()
.getMaxSameAddressConsumersPerTopic();
if (maxSameAddressConsumers > 0
&& getNumberOfSameAddressConsumers(consumer.getClientAddress()) >= maxSameAddressConsumers) {
return true;
}
return false;
}
public abstract int getNumberOfConsumers();
public abstract int getNumberOfSameAddressConsumers(String clientAddress);
protected int getNumberOfSameAddressConsumers(final String clientAddress,
final List<? extends Subscription> subscriptions) {
int count = 0;
if (clientAddress != null) {
for (Subscription subscription : subscriptions) {
count += subscription.getNumberOfSameAddressConsumers(clientAddress);
}
}
return count;
}
protected CompletableFuture<Void> addConsumerToSubscription(Subscription subscription, Consumer consumer) {
if (isConsumersExceededOnTopic()) {
log.warn("[{}] Attempting to add consumer to topic which reached max consumers limit", topic);
return FutureUtil.failedFuture(new ConsumerBusyException("Topic reached max consumers limit"));
}
if (isSameAddressConsumersExceededOnTopic(consumer)) {
log.warn("[{}] Attempting to add consumer to topic which reached max same address consumers limit", topic);
return FutureUtil.failedFuture(new ConsumerBusyException("Topic reached max same address consumers limit"));
}
return subscription.addConsumer(consumer);
}
protected Consumer getActiveConsumer(Subscription subscription) {
Dispatcher dispatcher = subscription.getDispatcher();
if (dispatcher instanceof AbstractDispatcherSingleActiveConsumer) {
return ((AbstractDispatcherSingleActiveConsumer) dispatcher).getActiveConsumer();
}
return null;
}
@Override
public void disableCnxAutoRead() {
producers.values().forEach(producer -> producer.getCnx().disableCnxAutoRead());
}
@Override
public void enableCnxAutoRead() {
producers.values().forEach(producer -> producer.getCnx().enableCnxAutoRead());
}
protected boolean hasLocalProducers() {
if (producers.isEmpty()) {
return false;
}
for (Producer producer : producers.values()) {
if (!producer.isRemote()) {
return true;
}
}
return false;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this).add("topic", topic).toString();
}
@Override
public Map<String, Producer> getProducers() {
return producers;
}
@Override
public BrokerService getBrokerService() {
return brokerService;
}
@Override
public String getName() {
return topic;
}
@Override
public boolean isEncryptionRequired() {
return isEncryptionRequired;
}
@Override
public boolean getSchemaValidationEnforced() {
return schemaValidationEnforced;
}
public void markBatchMessagePublished() {
this.hasBatchMessagePublished = true;
}
public String getReplicatorPrefix() {
return replicatorPrefix;
}
@Override
public CompletableFuture<Boolean> hasSchema() {
String base = TopicName.get(getName()).getPartitionedTopicName();
String id = TopicName.get(base).getSchemaName();
return brokerService.pulsar()
.getSchemaRegistryService()
.getSchema(id).thenApply(Objects::nonNull);
}
@Override
public CompletableFuture<SchemaVersion> addSchema(SchemaData schema) {
if (schema == null) {
return CompletableFuture.completedFuture(SchemaVersion.Empty);
}
String base = TopicName.get(getName()).getPartitionedTopicName();
String id = TopicName.get(base).getSchemaName();
SchemaRegistryService schemaRegistryService = brokerService.pulsar().getSchemaRegistryService();
if (allowAutoUpdateSchema()) {
return schemaRegistryService.putSchemaIfAbsent(id, schema, getSchemaCompatibilityStrategy());
} else {
return schemaRegistryService.trimDeletedSchemaAndGetList(id).thenCompose(schemaAndMetadataList ->
schemaRegistryService.getSchemaVersionBySchemaData(schemaAndMetadataList, schema)
.thenCompose(schemaVersion -> {
if (schemaVersion == null) {
return FutureUtil.failedFuture(new IncompatibleSchemaException(
"Schema not found and schema auto updating is disabled."));
} else {
return CompletableFuture.completedFuture(schemaVersion);
}
}));
}
}
private boolean allowAutoUpdateSchema() {
if (brokerService.isSystemTopic(topic)) {
return true;
}
if (isAllowAutoUpdateSchema == null) {
return brokerService.pulsar().getConfig().isAllowAutoUpdateSchemaEnabled();
}
return isAllowAutoUpdateSchema;
}
@Override
public CompletableFuture<SchemaVersion> deleteSchema() {
String base = TopicName.get(getName()).getPartitionedTopicName();
String id = TopicName.get(base).getSchemaName();
SchemaRegistryService schemaRegistryService = brokerService.pulsar().getSchemaRegistryService();
return BookkeeperSchemaStorage.ignoreUnrecoverableBKException(schemaRegistryService.getSchema(id))
.thenCompose(schema -> {
if (schema != null) {
// It's different from `SchemasResource.deleteSchema`
// because when we delete a topic, the schema
// history is meaningless. But when we delete a schema of a topic, a new schema could be
// registered in the future.
log.info("Delete schema storage of id: {}", id);
return schemaRegistryService.deleteSchemaStorage(id);
} else {
return CompletableFuture.completedFuture(null);
}
});
}
@Override
public CompletableFuture<Void> checkSchemaCompatibleForConsumer(SchemaData schema) {
String base = TopicName.get(getName()).getPartitionedTopicName();
String id = TopicName.get(base).getSchemaName();
return brokerService.pulsar()
.getSchemaRegistryService()
.checkConsumerCompatibility(id, schema, getSchemaCompatibilityStrategy());
}
@Override
public CompletableFuture<Optional<Long>> addProducer(Producer producer,
CompletableFuture<Void> producerQueuedFuture) {
checkArgument(producer.getTopic() == this);
return brokerService.checkTopicNsOwnership(getName())
.thenCompose(__ ->
incrementTopicEpochIfNeeded(producer, producerQueuedFuture))
.thenCompose(producerEpoch -> {
lock.writeLock().lock();
try {
checkTopicFenced();
if (isTerminated()) {
log.warn("[{}] Attempting to add producer to a terminated topic", topic);
throw new TopicTerminatedException("Topic was already terminated");
}
internalAddProducer(producer);
USAGE_COUNT_UPDATER.incrementAndGet(this);
if (log.isDebugEnabled()) {
log.debug("[{}] [{}] Added producer -- count: {}", topic, producer.getProducerName(),
USAGE_COUNT_UPDATER.get(this));
}
return CompletableFuture.completedFuture(producerEpoch);
} catch (BrokerServiceException e) {
return FutureUtil.failedFuture(e);
} finally {
lock.writeLock().unlock();
}
});
}
protected CompletableFuture<Optional<Long>> incrementTopicEpochIfNeeded(Producer producer,
CompletableFuture<Void> producerQueuedFuture) {
lock.writeLock().lock();
try {
switch (producer.getAccessMode()) {
case Shared:
if (hasExclusiveProducer || !waitingExclusiveProducers.isEmpty()) {
return FutureUtil.failedFuture(
new ProducerBusyException(
"Topic has an existing exclusive producer: " + exclusiveProducerName));
} else {
// Normal producer getting added, we don't need a new epoch
return CompletableFuture.completedFuture(topicEpoch);
}
case Exclusive:
if (hasExclusiveProducer || !waitingExclusiveProducers.isEmpty()) {
return FutureUtil.failedFuture(
new ProducerFencedException(
"Topic has an existing exclusive producer: " + exclusiveProducerName));
} else if (!producers.isEmpty()) {
return FutureUtil.failedFuture(new ProducerFencedException("Topic has existing shared producers"));
} else if (producer.getTopicEpoch().isPresent()
&& producer.getTopicEpoch().get() < topicEpoch.orElse(-1L)) {
// If a producer reconnects, but all the topic epoch has already moved forward, this producer needs
// to be fenced, because a new producer had been present in between.
return FutureUtil.failedFuture(new ProducerFencedException(
String.format("Topic epoch has already moved. Current epoch: %d, Producer epoch: %d",
topicEpoch.get(), producer.getTopicEpoch().get())));
} else {
// There are currently no existing producers
hasExclusiveProducer = true;
exclusiveProducerName = producer.getProducerName();
CompletableFuture<Long> future;
if (producer.getTopicEpoch().isPresent()) {
future = setTopicEpoch(producer.getTopicEpoch().get());
} else {
future = incrementTopicEpoch(topicEpoch);
}
future.exceptionally(ex -> {
hasExclusiveProducer = false;
exclusiveProducerName = null;
return null;
});
return future.thenApply(epoch -> {
topicEpoch = Optional.of(epoch);
return topicEpoch;
});
}
case WaitForExclusive: {
if (hasExclusiveProducer || !producers.isEmpty()) {
CompletableFuture<Optional<Long>> future = new CompletableFuture<>();
log.info("[{}] Queuing producer {} since there's already a producer", topic, producer);
waitingExclusiveProducers.add(Pair.of(producer, future));
producerQueuedFuture.complete(null);
return future;
} else if (producer.getTopicEpoch().isPresent()
&& producer.getTopicEpoch().get() < topicEpoch.orElse(-1L)) {
// If a producer reconnects, but all the topic epoch has already moved forward, this producer needs
// to be fenced, because a new producer had been present in between.
return FutureUtil.failedFuture(new ProducerFencedException(
String.format("Topic epoch has already moved. Current epoch: %d, Producer epoch: %d",
topicEpoch.get(), producer.getTopicEpoch().get())));
} else {
// There are currently no existing producers
hasExclusiveProducer = true;
exclusiveProducerName = producer.getProducerName();
CompletableFuture<Long> future;
if (producer.getTopicEpoch().isPresent()) {
future = setTopicEpoch(producer.getTopicEpoch().get());
} else {
future = incrementTopicEpoch(topicEpoch);
}
future.exceptionally(ex -> {
hasExclusiveProducer = false;
exclusiveProducerName = null;
return null;
});
return future.thenApply(epoch -> {
topicEpoch = Optional.of(epoch);
return topicEpoch;
});
}
}
default:
return FutureUtil.failedFuture(
new BrokerServiceException("Invalid producer access mode: " + producer.getAccessMode()));
}
} catch (Exception e) {
log.error("Encountered unexpected error during exclusive producer creation", e);
return FutureUtil.failedFuture(new BrokerServiceException(e));
} finally {
lock.writeLock().unlock();
}
}
protected abstract CompletableFuture<Long> setTopicEpoch(long newEpoch);
protected abstract CompletableFuture<Long> incrementTopicEpoch(Optional<Long> currentEpoch);
@Override
public void recordAddLatency(long latency, TimeUnit unit) {
addEntryLatencyStatsUsec.addValue(unit.toMicros(latency));
PUBLISH_LATENCY.observe(latency, unit);
}
@Override
public long increasePublishLimitedTimes() {
return RATE_LIMITED_UPDATER.incrementAndGet(this);
}
private static final Summary PUBLISH_LATENCY = Summary.build("pulsar_broker_publish_latency", "-")
.quantile(0.0)
.quantile(0.50)
.quantile(0.95)
.quantile(0.99)
.quantile(0.999)
.quantile(0.9999)
.quantile(1.0)
.register();
@Override
public void checkTopicPublishThrottlingRate() {
this.topicPublishRateLimiter.checkPublishRate();
}
@Override
public void incrementPublishCount(int numOfMessages, long msgSizeInBytes) {
// increase topic publish rate limiter
this.topicPublishRateLimiter.incrementPublishCount(numOfMessages, msgSizeInBytes);
// increase broker publish rate limiter
getBrokerPublishRateLimiter().incrementPublishCount(numOfMessages, msgSizeInBytes);
// increase counters
bytesInCounter.add(msgSizeInBytes);
msgInCounter.add(numOfMessages);
}
@Override
public void resetTopicPublishCountAndEnableReadIfRequired() {
// broker rate not exceeded. and completed topic limiter reset.
if (!getBrokerPublishRateLimiter().isPublishRateExceeded() && topicPublishRateLimiter.resetPublishCount()) {
enableProducerReadForPublishRateLimiting();
}
}
@Override
public void resetBrokerPublishCountAndEnableReadIfRequired(boolean doneBrokerReset) {
// topic rate not exceeded, and completed broker limiter reset.
if (!topicPublishRateLimiter.isPublishRateExceeded() && doneBrokerReset) {
enableProducerReadForPublishRateLimiting();
}
}
/**
* it sets cnx auto-readable if producer's cnx is disabled due to publish-throttling.
*/
protected void enableProducerReadForPublishRateLimiting() {
if (producers != null) {
producers.values().forEach(producer -> {
producer.getCnx().cancelPublishRateLimiting();
producer.getCnx().enableCnxAutoRead();
});
}
}
protected void enableProducerReadForPublishBufferLimiting() {
if (producers != null) {
producers.values().forEach(producer -> {
producer.getCnx().cancelPublishBufferLimiting();
producer.getCnx().enableCnxAutoRead();
});
}
}
protected void disableProducerRead() {
if (producers != null) {
producers.values().forEach(producer -> producer.getCnx().disableCnxAutoRead());
}
}
protected void checkTopicFenced() throws BrokerServiceException {
if (isFenced) {
log.warn("[{}] Attempting to add producer to a fenced topic", topic);
throw new BrokerServiceException.TopicFencedException("Topic is temporarily unavailable");
}
}
protected void internalAddProducer(Producer producer) throws BrokerServiceException {
if (isProducersExceeded()) {
log.warn("[{}] Attempting to add producer to topic which reached max producers limit", topic);
throw new BrokerServiceException.ProducerBusyException("Topic reached max producers limit");
}
if (isSameAddressProducersExceeded(producer)) {
log.warn("[{}] Attempting to add producer to topic which reached max same address producers limit", topic);
throw new BrokerServiceException.ProducerBusyException("Topic reached max same address producers limit");
}
if (log.isDebugEnabled()) {
log.debug("[{}] {} Got request to create producer ", topic, producer.getProducerName());
}
Producer existProducer = producers.putIfAbsent(producer.getProducerName(), producer);
if (existProducer != null) {
tryOverwriteOldProducer(existProducer, producer);
}
}
private void tryOverwriteOldProducer(Producer oldProducer, Producer newProducer)
throws BrokerServiceException {
if (newProducer.isSuccessorTo(oldProducer) && !isUserProvidedProducerName(oldProducer)
&& !isUserProvidedProducerName(newProducer)) {
oldProducer.close(false);
if (!producers.replace(newProducer.getProducerName(), oldProducer, newProducer)) {
// Met concurrent update, throw exception here so that client can try reconnect later.
throw new BrokerServiceException.NamingException("Producer with name '" + newProducer.getProducerName()
+ "' replace concurrency error");
} else {
handleProducerRemoved(oldProducer);
}
} else {
throw new BrokerServiceException.NamingException(
"Producer with name '" + newProducer.getProducerName() + "' is already connected to topic");
}
}
private boolean isUserProvidedProducerName(Producer producer){
//considered replicator producer as generated name producer
return producer.isUserProvidedProducerName() && !producer.getProducerName().startsWith(replicatorPrefix);
}
@Override
public void removeProducer(Producer producer) {
checkArgument(producer.getTopic() == this);
if (producers.remove(producer.getProducerName(), producer)) {
handleProducerRemoved(producer);
}
}
protected void handleProducerRemoved(Producer producer) {
// decrement usage only if this was a valid producer close
USAGE_COUNT_UPDATER.decrementAndGet(this);
// this conditional check is an optimization so we don't have acquire the write lock
// and execute following routine if there are no exclusive producers
if (hasExclusiveProducer) {
lock.writeLock().lock();
try {
hasExclusiveProducer = false;
exclusiveProducerName = null;
Pair<Producer, CompletableFuture<Optional<Long>>> nextWaitingProducer =
waitingExclusiveProducers.poll();
if (nextWaitingProducer != null) {
Producer nextProducer = nextWaitingProducer.getKey();
CompletableFuture<Optional<Long>> producerFuture = nextWaitingProducer.getValue();
hasExclusiveProducer = true;
exclusiveProducerName = nextProducer.getProducerName();
CompletableFuture<Long> future;
if (nextProducer.getTopicEpoch().isPresent()) {
future = setTopicEpoch(nextProducer.getTopicEpoch().get());
} else {
future = incrementTopicEpoch(topicEpoch);
}
future.thenAccept(epoch -> {
topicEpoch = Optional.of(epoch);
producerFuture.complete(topicEpoch);
}).exceptionally(ex -> {
hasExclusiveProducer = false;
exclusiveProducerName = null;
producerFuture.completeExceptionally(ex);
return null;
});
}
} finally {
lock.writeLock().unlock();
}
}
if (log.isDebugEnabled()) {
log.debug("[{}] [{}] Removed producer -- count: {}", topic, producer.getProducerName(),
USAGE_COUNT_UPDATER.get(this));
}
lastActive = System.nanoTime();
}
public void handleConsumerAdded(String subscriptionName, String consumerName) {
USAGE_COUNT_UPDATER.incrementAndGet(this);
if (log.isDebugEnabled()) {
log.debug("[{}] [{}] [{}] Added consumer -- count: {}", topic, subscriptionName,
consumerName, USAGE_COUNT_UPDATER.get(this));
}
}
public void decrementUsageCount() {
USAGE_COUNT_UPDATER.decrementAndGet(this);
}
public long currentUsageCount() {
return usageCount;
}