/
BrokerService.java
2538 lines (2269 loc) · 123 KB
/
BrokerService.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 com.google.common.base.Preconditions.checkNotNull;
import javax.ws.rs.core.Response;
import static org.apache.bookkeeper.mledger.util.SafeRun.safeRun;
import static org.apache.commons.collections.CollectionUtils.isEmpty;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import static org.apache.pulsar.broker.cache.ConfigurationCacheService.POLICIES;
import static org.apache.pulsar.broker.cache.LocalZooKeeperCacheService.LOCAL_POLICIES_ROOT;
import static org.apache.pulsar.broker.web.PulsarWebResource.joinPath;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Queues;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.AdaptiveRecvByteBufAllocator;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.ssl.SslContext;
import io.netty.util.concurrent.DefaultThreadFactory;
import java.io.Closeable;
import java.io.IOException;
import java.lang.reflect.Field;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.LongAdder;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.function.Consumer;
import java.util.function.Predicate;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.Setter;
import org.apache.bookkeeper.common.util.OrderedExecutor;
import org.apache.bookkeeper.common.util.OrderedScheduler;
import org.apache.bookkeeper.mledger.AsyncCallbacks.DeleteLedgerCallback;
import org.apache.bookkeeper.mledger.AsyncCallbacks.OpenLedgerCallback;
import org.apache.bookkeeper.mledger.LedgerOffloader;
import org.apache.bookkeeper.mledger.ManagedLedger;
import org.apache.bookkeeper.mledger.ManagedLedgerConfig;
import org.apache.bookkeeper.mledger.ManagedLedgerException;
import org.apache.bookkeeper.mledger.ManagedLedgerException.ManagedLedgerNotFoundException;
import org.apache.bookkeeper.mledger.ManagedLedgerFactory;
import org.apache.bookkeeper.mledger.util.Futures;
import org.apache.bookkeeper.util.ZkUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.apache.commons.lang3.tuple.Pair;
import org.apache.pulsar.broker.PulsarServerException;
import org.apache.pulsar.broker.PulsarService;
import org.apache.pulsar.broker.ServiceConfiguration;
import org.apache.pulsar.broker.admin.AdminResource;
import org.apache.pulsar.broker.authentication.AuthenticationService;
import org.apache.pulsar.broker.authorization.AuthorizationService;
import org.apache.pulsar.broker.cache.ConfigurationCacheService;
import org.apache.pulsar.broker.delayed.DelayedDeliveryTrackerFactory;
import org.apache.pulsar.broker.delayed.DelayedDeliveryTrackerLoader;
import org.apache.pulsar.broker.intercept.BrokerInterceptor;
import org.apache.pulsar.broker.loadbalance.LoadManager;
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.ServerMetadataException;
import org.apache.pulsar.broker.service.BrokerServiceException.ServiceUnitNotReadyException;
import org.apache.pulsar.broker.service.nonpersistent.NonPersistentTopic;
import org.apache.pulsar.broker.service.persistent.DispatchRateLimiter;
import org.apache.pulsar.broker.service.persistent.PersistentDispatcherMultipleConsumers;
import org.apache.pulsar.broker.service.persistent.PersistentTopic;
import org.apache.pulsar.broker.service.persistent.SystemTopic;
import org.apache.pulsar.broker.stats.ClusterReplicationMetrics;
import org.apache.pulsar.broker.stats.prometheus.metrics.ObserverGauge;
import org.apache.pulsar.broker.stats.prometheus.metrics.Summary;
import org.apache.pulsar.broker.systopic.SystemTopicClient;
import org.apache.pulsar.broker.web.PulsarWebResource;
import org.apache.pulsar.broker.zookeeper.aspectj.ClientCnxnAspect;
import org.apache.pulsar.broker.zookeeper.aspectj.ClientCnxnAspect.EventListner;
import org.apache.pulsar.client.admin.PulsarAdmin;
import org.apache.pulsar.client.admin.PulsarAdminBuilder;
import org.apache.pulsar.client.api.ClientBuilder;
import org.apache.pulsar.client.api.PulsarClient;
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.impl.ClientBuilderImpl;
import org.apache.pulsar.client.impl.PulsarClientImpl;
import org.apache.pulsar.client.impl.conf.ClientConfigurationData;
import org.apache.pulsar.client.internal.PropertiesUtils;
import org.apache.pulsar.common.allocator.PulsarByteBufAllocator;
import org.apache.pulsar.common.configuration.FieldContext;
import org.apache.pulsar.common.events.EventsTopicNames;
import org.apache.pulsar.common.naming.NamespaceBundle;
import org.apache.pulsar.common.naming.NamespaceBundleFactory;
import org.apache.pulsar.common.naming.NamespaceBundles;
import org.apache.pulsar.common.naming.NamespaceName;
import org.apache.pulsar.common.naming.TopicDomain;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.partition.PartitionedTopicMetadata;
import org.apache.pulsar.common.policies.data.AutoSubscriptionCreationOverride;
import org.apache.pulsar.common.policies.data.AutoTopicCreationOverride;
import org.apache.pulsar.common.policies.data.ClusterData;
import org.apache.pulsar.common.policies.data.LocalPolicies;
import org.apache.pulsar.common.policies.data.OffloadPolicies;
import org.apache.pulsar.common.policies.data.PersistencePolicies;
import org.apache.pulsar.common.policies.data.PersistentOfflineTopicStats;
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.TopicPolicies;
import org.apache.pulsar.common.policies.data.TopicStats;
import org.apache.pulsar.common.policies.data.TopicType;
import org.apache.pulsar.common.protocol.schema.SchemaVersion;
import org.apache.pulsar.common.stats.Metrics;
import org.apache.pulsar.common.util.FieldParser;
import org.apache.pulsar.common.util.FutureUtil;
import org.apache.pulsar.common.util.ObjectMapperFactory;
import org.apache.pulsar.common.util.RestException;
import org.apache.pulsar.common.util.collections.ConcurrentOpenHashMap;
import org.apache.pulsar.common.util.collections.ConcurrentOpenHashSet;
import org.apache.pulsar.common.util.netty.EventLoopUtil;
import org.apache.pulsar.policies.data.loadbalancer.NamespaceBundleStats;
import org.apache.pulsar.zookeeper.ZkIsolatedBookieEnsemblePlacementPolicy;
import org.apache.pulsar.zookeeper.ZooKeeperCacheListener;
import org.apache.pulsar.zookeeper.ZooKeeperDataCache;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.data.Stat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Getter(AccessLevel.PUBLIC)
@Setter(AccessLevel.PROTECTED)
public class BrokerService implements Closeable, ZooKeeperCacheListener<Policies> {
private static final Logger log = LoggerFactory.getLogger(BrokerService.class);
private final PulsarService pulsar;
private final ManagedLedgerFactory managedLedgerFactory;
private final ConcurrentOpenHashMap<String, CompletableFuture<Optional<Topic>>> topics;
private final ConcurrentOpenHashMap<String, PulsarClient> replicationClients;
private final ConcurrentOpenHashMap<String, PulsarAdmin> clusterAdmins;
// Multi-layer topics map:
// Namespace --> Bundle --> topicName --> topic
private final ConcurrentOpenHashMap<String, ConcurrentOpenHashMap<String, ConcurrentOpenHashMap<String, Topic>>> multiLayerTopicsMap;
private int numberOfNamespaceBundles = 0;
private final EventLoopGroup acceptorGroup;
private final EventLoopGroup workerGroup;
private final OrderedExecutor topicOrderedExecutor;
// offline topic backlog cache
private final ConcurrentOpenHashMap<TopicName, PersistentOfflineTopicStats> offlineTopicStatCache;
private static final ConcurrentOpenHashMap<String, ConfigField> dynamicConfigurationMap = prepareDynamicConfigurationMap();
private final ConcurrentOpenHashMap<String, Consumer<?>> configRegisteredListeners;
private final ConcurrentLinkedQueue<Pair<String, CompletableFuture<Optional<Topic>>>> pendingTopicLoadingQueue;
private AuthorizationService authorizationService = null;
private final ScheduledExecutorService statsUpdater;
private final ScheduledExecutorService backlogQuotaChecker;
protected final AtomicReference<Semaphore> lookupRequestSemaphore;
protected final AtomicReference<Semaphore> topicLoadRequestSemaphore;
private final ObserverGauge pendingLookupRequests;
private final ObserverGauge pendingTopicLoadRequests;
private final ScheduledExecutorService inactivityMonitor;
private final ScheduledExecutorService messageExpiryMonitor;
private final ScheduledExecutorService compactionMonitor;
private final ScheduledExecutorService messagePublishBufferMonitor;
private final ScheduledExecutorService consumedLedgersMonitor;
private ScheduledExecutorService topicPublishRateLimiterMonitor;
private ScheduledExecutorService brokerPublishRateLimiterMonitor;
private ScheduledExecutorService deduplicationSnapshotMonitor;
protected volatile PublishRateLimiter brokerPublishRateLimiter = PublishRateLimiter.DISABLED_RATE_LIMITER;
private DistributedIdGenerator producerNameGenerator;
public final static String producerNameGeneratorPath = "/counters/producer-name";
private final BacklogQuotaManager backlogQuotaManager;
private final int keepAliveIntervalSeconds;
private final PulsarStats pulsarStats;
private final EventListner zkStatsListener;
private final AuthenticationService authenticationService;
public static final String BROKER_SERVICE_CONFIGURATION_PATH = "/admin/configuration";
private final ZooKeeperDataCache<Map<String, String>> dynamicConfigurationCache;
private static final LongAdder totalUnackedMessages = new LongAdder();
private final int maxUnackedMessages;
public final int maxUnackedMsgsPerDispatcher;
private static final AtomicBoolean blockedDispatcherOnHighUnackedMsgs = new AtomicBoolean(false);
private final ConcurrentOpenHashSet<PersistentDispatcherMultipleConsumers> blockedDispatchers;
private final ReadWriteLock lock = new ReentrantReadWriteLock();
private final DelayedDeliveryTrackerFactory delayedDeliveryTrackerFactory;
private final ServerBootstrap defaultServerBootstrap;
private Channel listenChannel;
private Channel listenChannelTls;
private boolean preciseTopicPublishRateLimitingEnable;
private final long maxMessagePublishBufferBytes;
private final long resumeProducerReadMessagePublishBufferBytes;
private volatile boolean reachMessagePublishBufferThreshold;
private BrokerInterceptor interceptor;
public BrokerService(PulsarService pulsar) throws Exception {
this.pulsar = pulsar;
this.maxMessagePublishBufferBytes = pulsar.getConfiguration().getMaxMessagePublishBufferSizeInMB() > 0 ?
pulsar.getConfiguration().getMaxMessagePublishBufferSizeInMB() * 1024L * 1024L : -1;
this.resumeProducerReadMessagePublishBufferBytes = this.maxMessagePublishBufferBytes / 2;
this.preciseTopicPublishRateLimitingEnable = pulsar.getConfiguration().isPreciseTopicPublishRateLimiterEnable();
this.managedLedgerFactory = pulsar.getManagedLedgerFactory();
this.topics = new ConcurrentOpenHashMap<>();
this.replicationClients = new ConcurrentOpenHashMap<>();
this.clusterAdmins = new ConcurrentOpenHashMap<>();
this.keepAliveIntervalSeconds = pulsar.getConfiguration().getKeepAliveIntervalSeconds();
this.configRegisteredListeners = new ConcurrentOpenHashMap<>();
this.pendingTopicLoadingQueue = Queues.newConcurrentLinkedQueue();
this.multiLayerTopicsMap = new ConcurrentOpenHashMap<>();
this.pulsarStats = new PulsarStats(pulsar);
this.offlineTopicStatCache = new ConcurrentOpenHashMap<>();
this.topicOrderedExecutor = OrderedScheduler.newSchedulerBuilder()
.numThreads(pulsar.getConfiguration().getNumWorkerThreadsForNonPersistentTopic())
.name("broker-topic-workers").build();
final DefaultThreadFactory acceptorThreadFactory = new DefaultThreadFactory("pulsar-acceptor");
final DefaultThreadFactory workersThreadFactory = new DefaultThreadFactory("pulsar-io");
final int numThreads = pulsar.getConfiguration().getNumIOThreads();
log.info("Using {} threads for broker service IO", numThreads);
this.acceptorGroup = EventLoopUtil.newEventLoopGroup(1, acceptorThreadFactory);
this.workerGroup = EventLoopUtil.newEventLoopGroup(numThreads, workersThreadFactory);
this.statsUpdater = Executors
.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-stats-updater"));
this.authorizationService = new AuthorizationService(pulsar.getConfiguration(), pulsar.getConfigurationCache());
if (pulsar.getConfigurationCache() != null) {
pulsar.getConfigurationCache().policiesCache().registerListener(this);
}
this.inactivityMonitor = Executors
.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-inactivity-monitor"));
this.messageExpiryMonitor = Executors
.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-msg-expiry-monitor"));
this.compactionMonitor =
Executors.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-compaction-monitor"));
this.messagePublishBufferMonitor =
Executors.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-publish-buffer-monitor"));
this.consumedLedgersMonitor = Executors
.newSingleThreadScheduledExecutor(new DefaultThreadFactory("consumed-Ledgers-monitor"));
this.backlogQuotaManager = new BacklogQuotaManager(pulsar);
this.backlogQuotaChecker = Executors
.newSingleThreadScheduledExecutor(new DefaultThreadFactory("pulsar-backlog-quota-checker"));
this.authenticationService = new AuthenticationService(pulsar.getConfiguration());
this.dynamicConfigurationCache = new ZooKeeperDataCache<Map<String, String>>(pulsar().getLocalZkCache()) {
@Override
public Map<String, String> deserialize(String key, byte[] content) throws Exception {
return ObjectMapperFactory.getThreadLocal().readValue(content, HashMap.class);
}
};
this.blockedDispatchers = new ConcurrentOpenHashSet<>();
// update dynamic configuration and register-listener
updateConfigurationAndRegisterListeners();
this.lookupRequestSemaphore = new AtomicReference<Semaphore>(
new Semaphore(pulsar.getConfiguration().getMaxConcurrentLookupRequest(), false));
this.topicLoadRequestSemaphore = new AtomicReference<Semaphore>(
new Semaphore(pulsar.getConfiguration().getMaxConcurrentTopicLoadRequest(), false));
if (pulsar.getConfiguration().getMaxUnackedMessagesPerBroker() > 0
&& pulsar.getConfiguration().getMaxUnackedMessagesPerSubscriptionOnBrokerBlocked() > 0.0) {
this.maxUnackedMessages = pulsar.getConfiguration().getMaxUnackedMessagesPerBroker();
this.maxUnackedMsgsPerDispatcher = (int) ((maxUnackedMessages
* pulsar.getConfiguration().getMaxUnackedMessagesPerSubscriptionOnBrokerBlocked()) / 100);
log.info("Enabling per-broker unack-message limit {} and dispatcher-limit {} on blocked-broker",
maxUnackedMessages, maxUnackedMsgsPerDispatcher);
// block misbehaving dispatcher by checking periodically
pulsar.getExecutor().scheduleAtFixedRate(() -> checkUnAckMessageDispatching(), 600, 30, TimeUnit.SECONDS);
} else {
this.maxUnackedMessages = 0;
this.maxUnackedMsgsPerDispatcher = 0;
log.info(
"Disabling per broker unack-msg blocking due invalid unAckMsgSubscriptionPercentageLimitOnBrokerBlocked {} ",
pulsar.getConfiguration().getMaxUnackedMessagesPerSubscriptionOnBrokerBlocked());
}
// register listener to capture zk-latency
zkStatsListener = (eventType, latencyMs) -> pulsarStats.recordZkLatencyTimeValue(eventType, latencyMs);
this.delayedDeliveryTrackerFactory = DelayedDeliveryTrackerLoader
.loadDelayedDeliveryTrackerFactory(pulsar.getConfiguration());
this.defaultServerBootstrap = defaultServerBootstrap();
this.pendingLookupRequests = ObserverGauge.build("pulsar_broker_lookup_pending_requests", "-")
.supplier(() -> pulsar.getConfig().getMaxConcurrentLookupRequest()
- lookupRequestSemaphore.get().availablePermits())
.register();
this.pendingTopicLoadRequests = ObserverGauge.build("pulsar_broker_topic_load_pending_requests", "-")
.supplier(() -> pulsar.getConfig().getMaxConcurrentTopicLoadRequest()
- topicLoadRequestSemaphore.get().availablePermits())
.register();
}
// This call is used for starting additional protocol handlers
public void startProtocolHandlers(
Map<String, Map<InetSocketAddress, ChannelInitializer<SocketChannel>>> protocolHandlers) {
protocolHandlers.forEach((protocol, initializers) -> {
initializers.forEach((address, initializer) -> {
try {
startProtocolHandler(protocol, address, initializer);
} catch (IOException e) {
log.error("{}", e.getMessage(), e.getCause());
throw new RuntimeException(e.getMessage(), e.getCause());
}
});
});
}
private void startProtocolHandler(String protocol,
SocketAddress address,
ChannelInitializer<SocketChannel> initializer) throws IOException {
ServerBootstrap bootstrap = defaultServerBootstrap.clone();
bootstrap.childHandler(initializer);
try {
bootstrap.bind(address).sync();
} catch (Exception e) {
throw new IOException("Failed to bind protocol `" + protocol + "` on " + address, e);
}
log.info("Successfully bind protocol `{}` on {}", protocol, address);
}
private ServerBootstrap defaultServerBootstrap() {
ServerBootstrap bootstrap = new ServerBootstrap();
bootstrap.childOption(ChannelOption.ALLOCATOR, PulsarByteBufAllocator.DEFAULT);
bootstrap.group(acceptorGroup, workerGroup);
bootstrap.childOption(ChannelOption.TCP_NODELAY, true);
bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
new AdaptiveRecvByteBufAllocator(1024, 16 * 1024, 1 * 1024 * 1024));
bootstrap.channel(EventLoopUtil.getServerSocketChannelClass(workerGroup));
EventLoopUtil.enableTriggeredMode(bootstrap);
return bootstrap;
}
public void start() throws Exception {
this.producerNameGenerator = new DistributedIdGenerator(pulsar.getZkClient(), producerNameGeneratorPath,
pulsar.getConfiguration().getClusterName());
ServerBootstrap bootstrap = defaultServerBootstrap.clone();
ServiceConfiguration serviceConfig = pulsar.getConfiguration();
bootstrap.childHandler(new PulsarChannelInitializer(pulsar, false));
Optional<Integer> port = serviceConfig.getBrokerServicePort();
if (port.isPresent()) {
// Bind and start to accept incoming connections.
InetSocketAddress addr = new InetSocketAddress(pulsar.getBindAddress(), port.get());
try {
listenChannel = bootstrap.bind(addr).sync().channel();
log.info("Started Pulsar Broker service on {}", listenChannel.localAddress());
} catch (Exception e) {
throw new IOException("Failed to bind Pulsar broker on " + addr, e);
}
}
Optional<Integer> tlsPort = serviceConfig.getBrokerServicePortTls();
if (tlsPort.isPresent()) {
ServerBootstrap tlsBootstrap = bootstrap.clone();
tlsBootstrap.childHandler(new PulsarChannelInitializer(pulsar, true));
try {
listenChannelTls = tlsBootstrap.bind(new InetSocketAddress(pulsar.getBindAddress(), tlsPort.get())).sync()
.channel();
log.info("Started Pulsar Broker TLS service on {} - TLS provider: {}", listenChannelTls.localAddress(),
SslContext.defaultServerProvider());
} catch (Exception e) {
throw new IOException(String.format("Failed to start Pulsar Broker TLS service on %s:%d",
pulsar.getBindAddress(), tlsPort.get()), e);
}
}
// start other housekeeping functions
this.startStatsUpdater(
serviceConfig.getStatsUpdateInitialDelayInSecs(),
serviceConfig.getStatsUpdateFrequencyInSecs());
this.startInactivityMonitor();
this.startMessageExpiryMonitor();
this.startCompactionMonitor();
this.startMessagePublishBufferMonitor();
this.startConsumedLedgersMonitor();
this.startBacklogQuotaChecker();
this.updateBrokerPublisherThrottlingMaxRate();
this.startCheckReplicationPolicies();
this.startDeduplicationSnapshotMonitor();
// register listener to capture zk-latency
ClientCnxnAspect.addListener(zkStatsListener);
ClientCnxnAspect.registerExecutor(pulsar.getExecutor());
}
protected void startStatsUpdater(int statsUpdateInitailDelayInSecs, int statsUpdateFrequencyInSecs) {
statsUpdater.scheduleAtFixedRate(safeRun(this::updateRates),
statsUpdateInitailDelayInSecs, statsUpdateFrequencyInSecs, TimeUnit.SECONDS);
// Ensure the broker starts up with initial stats
updateRates();
}
protected void startDeduplicationSnapshotMonitor() {
int interval = pulsar().getConfiguration().getBrokerDeduplicationSnapshotFrequencyInSeconds();
if (interval > 0 && pulsar().getConfiguration().isBrokerDeduplicationEnabled()) {
this.deduplicationSnapshotMonitor =
Executors.newSingleThreadScheduledExecutor(new DefaultThreadFactory("deduplication-snapshot-monitor"));
deduplicationSnapshotMonitor.scheduleAtFixedRate(safeRun(() -> forEachTopic(Topic::checkDeduplicationSnapshot))
, interval, interval, TimeUnit.SECONDS);
}
}
protected void startInactivityMonitor() {
if (pulsar().getConfiguration().isBrokerDeleteInactiveTopicsEnabled()) {
int interval = pulsar().getConfiguration().getBrokerDeleteInactiveTopicsFrequencySeconds();
inactivityMonitor.scheduleAtFixedRate(safeRun(() -> checkGC()), interval, interval,
TimeUnit.SECONDS);
}
// Deduplication info checker
long duplicationCheckerIntervalInSeconds = TimeUnit.MINUTES
.toSeconds(pulsar().getConfiguration().getBrokerDeduplicationProducerInactivityTimeoutMinutes()) / 3;
inactivityMonitor.scheduleAtFixedRate(safeRun(this::checkMessageDeduplicationInfo), duplicationCheckerIntervalInSeconds,
duplicationCheckerIntervalInSeconds, TimeUnit.SECONDS);
// Inactive subscriber checker
if (pulsar().getConfiguration().getSubscriptionExpiryCheckIntervalInMinutes() > 0) {
long subscriptionExpiryCheckIntervalInSeconds =
TimeUnit.MINUTES.toSeconds(pulsar().getConfiguration().getSubscriptionExpiryCheckIntervalInMinutes());
inactivityMonitor.scheduleAtFixedRate(safeRun(this::checkInactiveSubscriptions),
subscriptionExpiryCheckIntervalInSeconds, subscriptionExpiryCheckIntervalInSeconds, TimeUnit.SECONDS);
}
}
protected void startMessageExpiryMonitor() {
int interval = pulsar().getConfiguration().getMessageExpiryCheckIntervalInMinutes();
messageExpiryMonitor.scheduleAtFixedRate(safeRun(this::checkMessageExpiry), interval, interval,
TimeUnit.MINUTES);
}
protected void startCheckReplicationPolicies() {
int interval = pulsar.getConfig().getReplicationPolicyCheckDurationSeconds();
if (interval > 0) {
messageExpiryMonitor.scheduleAtFixedRate(safeRun(this::checkReplicationPolicies), interval, interval,
TimeUnit.SECONDS);
}
}
protected void startCompactionMonitor() {
int interval = pulsar().getConfiguration().getBrokerServiceCompactionMonitorIntervalInSeconds();
if (interval > 0) {
compactionMonitor.scheduleAtFixedRate(safeRun(() -> checkCompaction()),
interval, interval, TimeUnit.SECONDS);
}
}
protected void startMessagePublishBufferMonitor() {
int interval = pulsar().getConfiguration().getMessagePublishBufferCheckIntervalInMillis();
if (interval > 0 && maxMessagePublishBufferBytes > 0) {
messagePublishBufferMonitor.scheduleAtFixedRate(safeRun(this::checkMessagePublishBuffer),
interval, interval, TimeUnit.MILLISECONDS);
}
}
protected void startConsumedLedgersMonitor() {
int interval = pulsar().getConfiguration().getRetentionCheckIntervalInSeconds();
if (interval > 0) {
consumedLedgersMonitor.scheduleAtFixedRate(safeRun(this::checkConsumedLedgers),
interval, interval, TimeUnit.SECONDS);
}
}
protected void startBacklogQuotaChecker() {
if (pulsar().getConfiguration().isBacklogQuotaCheckEnabled()) {
final int interval = pulsar().getConfiguration().getBacklogQuotaCheckIntervalInSeconds();
log.info("Scheduling a thread to check backlog quota after [{}] seconds in background", interval);
backlogQuotaChecker.scheduleAtFixedRate(safeRun(this::monitorBacklogQuota), interval, interval,
TimeUnit.SECONDS);
} else {
log.info("Backlog quota check monitoring is disabled");
}
}
/**
* Schedules and monitors publish-throttling for all owned topics that has publish-throttling configured. It also
* disables and shutdowns publish-rate-limiter monitor task if broker disables it.
*/
public synchronized void setupTopicPublishRateLimiterMonitor() {
// set topic PublishRateLimiterMonitor
long topicTickTimeMs = pulsar().getConfiguration().getTopicPublisherThrottlingTickTimeMillis();
if (topicTickTimeMs > 0) {
if (this.topicPublishRateLimiterMonitor == null) {
this.topicPublishRateLimiterMonitor = Executors.newSingleThreadScheduledExecutor(
new DefaultThreadFactory("pulsar-topic-publish-rate-limiter-monitor"));
if (topicTickTimeMs > 0) {
// schedule task that sums up publish-rate across all cnx on a topic
topicPublishRateLimiterMonitor.scheduleAtFixedRate(safeRun(() -> checkTopicPublishThrottlingRate()),
topicTickTimeMs, topicTickTimeMs, TimeUnit.MILLISECONDS);
// schedule task that refreshes rate-limiting bucket
topicPublishRateLimiterMonitor.scheduleAtFixedRate(safeRun(() -> refreshTopicPublishRate()), 1, 1,
TimeUnit.SECONDS);
}
}
} else {
// disable publish-throttling for all topics
if (this.topicPublishRateLimiterMonitor != null) {
try {
this.topicPublishRateLimiterMonitor.awaitTermination(30, TimeUnit.SECONDS);
} catch (InterruptedException e) {
log.warn("failed to shutdown topicPublishRateLimiterMonitor", e);
}
// make sure topics are not being throttled
refreshTopicPublishRate();
this.topicPublishRateLimiterMonitor = null;
}
}
}
/**
* Schedules and monitors publish-throttling for broker that has publish-throttling configured. It also
* disables and shutdowns publish-rate-limiter monitor for broker task if broker disables it.
*/
public synchronized void setupBrokerPublishRateLimiterMonitor() {
// set broker PublishRateLimiterMonitor
long brokerTickTimeMs = pulsar().getConfiguration().getBrokerPublisherThrottlingTickTimeMillis();
if (brokerTickTimeMs > 0) {
if (this.brokerPublishRateLimiterMonitor == null) {
this.brokerPublishRateLimiterMonitor = Executors.newSingleThreadScheduledExecutor(
new DefaultThreadFactory("pulsar-broker-publish-rate-limiter-monitor"));
if (brokerTickTimeMs > 0) {
// schedule task that sums up publish-rate across all cnx on a topic,
// and check the rate limit exceeded or not.
brokerPublishRateLimiterMonitor.scheduleAtFixedRate(
safeRun(() -> checkBrokerPublishThrottlingRate()),
brokerTickTimeMs,
brokerTickTimeMs,
TimeUnit.MILLISECONDS);
// schedule task that refreshes rate-limiting bucket
brokerPublishRateLimiterMonitor.scheduleAtFixedRate(
safeRun(() -> refreshBrokerPublishRate()),
1,
1,
TimeUnit.SECONDS);
}
}
} else {
// disable publish-throttling for broker.
if (this.brokerPublishRateLimiterMonitor != null) {
try {
this.brokerPublishRateLimiterMonitor.awaitTermination(30, TimeUnit.SECONDS);
} catch (InterruptedException e) {
log.warn("failed to shutdown brokerPublishRateLimiterMonitor", e);
}
// make sure topics are not being throttled
refreshBrokerPublishRate();
this.brokerPublishRateLimiterMonitor = null;
}
}
}
@Override
public void close() throws IOException {
log.info("Shutting down Pulsar Broker service");
if (pulsar.getConfigurationCache() != null) {
pulsar.getConfigurationCache().policiesCache().unregisterListener(this);
}
// unloads all namespaces gracefully without disrupting mutually
unloadNamespaceBundlesGracefully();
// close replication clients
replicationClients.forEach((cluster, client) -> {
try {
client.shutdown();
} catch (PulsarClientException e) {
log.warn("Error shutting down repl client for cluster {}", cluster, e);
}
});
// close replication admins
clusterAdmins.forEach((cluster, admin) -> {
try {
admin.close();
} catch (Exception e) {
log.warn("Error shutting down repl admin for cluster {}", cluster, e);
}
});
if (listenChannel != null) {
listenChannel.close();
}
if (listenChannelTls != null) {
listenChannelTls.close();
}
acceptorGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
if (interceptor != null) {
interceptor.close();
interceptor = null;
}
statsUpdater.shutdown();
inactivityMonitor.shutdown();
messageExpiryMonitor.shutdown();
compactionMonitor.shutdown();
messagePublishBufferMonitor.shutdown();
consumedLedgersMonitor.shutdown();
backlogQuotaChecker.shutdown();
authenticationService.close();
pulsarStats.close();
ClientCnxnAspect.removeListener(zkStatsListener);
ClientCnxnAspect.registerExecutor(null);
topicOrderedExecutor.shutdown();
delayedDeliveryTrackerFactory.close();
if (topicPublishRateLimiterMonitor != null) {
topicPublishRateLimiterMonitor.shutdown();
}
if (brokerPublishRateLimiterMonitor != null) {
brokerPublishRateLimiterMonitor.shutdown();
}
if (deduplicationSnapshotMonitor != null) {
deduplicationSnapshotMonitor.shutdown();
}
log.info("Broker service completely shut down");
}
/**
* It unloads all owned namespacebundles gracefully.
* <ul>
* <li>First it makes current broker unavailable and isolates from the clusters so, it will not serve any new
* requests.</li>
* <li>Second it starts unloading namespace bundle one by one without closing the connection in order to avoid
* disruption for other namespacebundles which are sharing the same connection from the same client.</li>
* <ul>
*
*/
public void unloadNamespaceBundlesGracefully() {
try {
// make broker-node unavailable from the cluster
if (pulsar.getLoadManager() != null && pulsar.getLoadManager().get() != null) {
try {
pulsar.getLoadManager().get().disableBroker();
} catch (PulsarServerException.NotFoundException ne) {
log.warn("Broker load-manager znode doesn't exist ", ne);
// still continue and release bundle ownership as broker's registration node doesn't exist.
}
}
// unload all namespace-bundles gracefully
long closeTopicsStartTime = System.nanoTime();
Set<NamespaceBundle> serviceUnits = pulsar.getNamespaceService().getOwnedServiceUnits();
serviceUnits.forEach(su -> {
if (su instanceof NamespaceBundle) {
try {
pulsar.getNamespaceService().unloadNamespaceBundle(su, 1, TimeUnit.MINUTES).get();
} catch (Exception e) {
log.warn("Failed to unload namespace bundle {}", su, e);
}
}
});
double closeTopicsTimeSeconds = TimeUnit.NANOSECONDS.toMillis((System.nanoTime() - closeTopicsStartTime))
/ 1000.0;
log.info("Unloading {} namespace-bundles completed in {} seconds", serviceUnits.size(),
closeTopicsTimeSeconds);
} catch (Exception e) {
log.error("Failed to disable broker from loadbalancer list {}", e.getMessage(), e);
}
}
public CompletableFuture<Optional<Topic>> getTopicIfExists(final String topic) {
return getTopic(topic, false /* createIfMissing */);
}
public CompletableFuture<Topic> getOrCreateTopic(final String topic) {
return getTopic(topic, isAllowAutoTopicCreation(topic)).thenApply(Optional::get);
}
public CompletableFuture<Optional<Topic>> getTopic(final String topic, boolean createIfMissing) {
try {
CompletableFuture<Optional<Topic>> topicFuture = topics.get(topic);
if (topicFuture != null) {
if (topicFuture.isCompletedExceptionally()
|| (topicFuture.isDone() && !topicFuture.getNow(Optional.empty()).isPresent())) {
// Exceptional topics should be recreated.
topics.remove(topic, topicFuture);
} else {
// a non-existing topic in the cache shouldn't prevent creating a topic
if (createIfMissing) {
if (topicFuture.isDone() && topicFuture.getNow(Optional.empty()).isPresent()) {
return topicFuture;
} else {
return topicFuture.thenCompose(value -> {
if (!value.isPresent()) {
// retry and create topic
return getTopic(topic, createIfMissing);
} else {
// in-progress future completed successfully
return CompletableFuture.completedFuture(value);
}
});
}
} else {
return topicFuture;
}
}
}
final boolean isPersistentTopic = TopicName.get(topic).getDomain().equals(TopicDomain.persistent);
if (isPersistentTopic) {
return topics.computeIfAbsent(topic, (topicName) -> {
return this.loadOrCreatePersistentTopic(topicName, createIfMissing);
});
} else {
return topics.computeIfAbsent(topic, (name) -> {
final TopicName topicName = TopicName.get(name);
if (topicName.isPartitioned()) {
final TopicName partitionedTopicName = TopicName.get(topicName.getPartitionedTopicName());
return this.fetchPartitionedTopicMetadataAsync(partitionedTopicName).thenCompose((metadata) -> {
if (topicName.getPartitionIndex() < metadata.partitions) {
return createNonPersistentTopic(name);
}
return CompletableFuture.completedFuture(Optional.empty());
});
} else if (createIfMissing) {
return createNonPersistentTopic(name);
} else {
return CompletableFuture.completedFuture(Optional.empty());
}
});
}
} catch (IllegalArgumentException e) {
log.warn("[{}] Illegalargument exception when loading topic", topic, e);
return failedFuture(e);
} catch (RuntimeException e) {
Throwable cause = e.getCause();
if (cause instanceof ServiceUnitNotReadyException) {
log.warn("[{}] Service unit is not ready when loading the topic", topic);
} else {
log.warn("[{}] Unexpected exception when loading topic: {}", topic, e.getMessage(), e);
}
return failedFuture(cause);
}
}
public CompletableFuture<SchemaVersion> deleteSchemaStorage(String topic) {
Optional<Topic> optTopic = getTopicReference(topic);
if (optTopic.isPresent()) {
return optTopic.get().deleteSchema();
} else {
return CompletableFuture.completedFuture(null);
}
}
public CompletableFuture<Void> deleteTopic(String topic, boolean forceDelete) {
return deleteTopic(topic, forceDelete, false);
}
public CompletableFuture<Void> deleteTopic(String topic, boolean forceDelete, boolean deleteSchema) {
Optional<Topic> optTopic = getTopicReference(topic);
if (optTopic.isPresent()) {
Topic t = optTopic.get();
if (forceDelete) {
if (deleteSchema) {
return t.deleteSchema().thenCompose(schemaVersion -> {
log.info("Successfully delete topic {}'s schema of version {}", t.getName(), schemaVersion);
return t.deleteForcefully();
});
} else {
return t.deleteForcefully();
}
}
// v2 topics have a global name so check if the topic is replicated.
if (t.isReplicated()) {
// Delete is disallowed on global topic
final List<String> clusters = t.getReplicators().keys();
log.error("Delete forbidden topic {} is replicated on clusters {}", topic, clusters);
return FutureUtil.failedFuture(
new IllegalStateException("Delete forbidden topic is replicated on clusters " + clusters));
}
if (deleteSchema) {
return t.deleteSchema().thenCompose(schemaVersion -> {
log.info("Successfully delete topic {}'s schema of version {}", t.getName(), schemaVersion);
return t.delete();
});
} else {
return t.delete();
}
}
// Topic is not loaded, though we still might be able to delete from metadata
TopicName tn = TopicName.get(topic);
if (!tn.isPersistent()) {
// Nothing to do if it's not persistent
return CompletableFuture.completedFuture(null);
}
CompletableFuture<Void> future = new CompletableFuture<>();
managedLedgerFactory.asyncDelete(tn.getPersistenceNamingEncoding(), new DeleteLedgerCallback() {
@Override
public void deleteLedgerComplete(Object ctx) {
future.complete(null);
}
@Override
public void deleteLedgerFailed(ManagedLedgerException exception, Object ctx) {
future.completeExceptionally(exception);
}
}, null);
return future;
}
private CompletableFuture<Optional<Topic>> createNonPersistentTopic(String topic) {
CompletableFuture<Optional<Topic>> topicFuture = FutureUtil.futureWithDeadline(executor());
if (!pulsar.getConfiguration().isEnableNonPersistentTopics()) {
if (log.isDebugEnabled()) {
log.debug("Broker is unable to load non-persistent topic {}", topic);
}
topicFuture.completeExceptionally(
new NotAllowedException("Broker is not unable to load non-persistent topic"));
return topicFuture;
}
final long topicCreateTimeMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime());
NonPersistentTopic nonPersistentTopic = new NonPersistentTopic(topic, this);
CompletableFuture<Void> replicationFuture = nonPersistentTopic.checkReplication();
replicationFuture.thenRun(() -> {
log.info("Created topic {}", nonPersistentTopic);
long topicLoadLatencyMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime()) - topicCreateTimeMs;
pulsarStats.recordTopicLoadTimeValue(topic, topicLoadLatencyMs);
addTopicToStatsMaps(TopicName.get(topic), nonPersistentTopic);
topicFuture.complete(Optional.of(nonPersistentTopic));
});
replicationFuture.exceptionally((ex) -> {
log.warn("Replication check failed. Removing topic from topics list {}, {}", topic, ex);
nonPersistentTopic.stopReplProducers().whenComplete((v, exception) -> {
pulsar.getExecutor().execute(() -> topics.remove(topic, topicFuture));
topicFuture.completeExceptionally(ex);
});
return null;
});
return topicFuture;
}
private static <T> CompletableFuture<T> failedFuture(Throwable t) {
CompletableFuture<T> future = new CompletableFuture<>();
future.completeExceptionally(t);
return future;
}
private <T> CompletableFuture<T> futureWithDeadline(Long delay, TimeUnit unit, Exception exp) {
CompletableFuture<T> future = new CompletableFuture<T>();
executor().schedule(() -> {
if (!future.isDone()) {
future.completeExceptionally(exp);
}
}, delay, unit);
return future;
}
private <T> CompletableFuture<T> futureWithDeadline() {
return futureWithDeadline(60000L, TimeUnit.MILLISECONDS, new TimeoutException("Future didn't finish within deadline"));
}
public PulsarClient getReplicationClient(String cluster) {
PulsarClient client = replicationClients.get(cluster);
if (client != null) {
return client;
}
return replicationClients.computeIfAbsent(cluster, key -> {
try {
String path = PulsarWebResource.path("clusters", cluster);
ClusterData data = this.pulsar.getConfigurationCache().clustersCache().get(path)
.orElseThrow(() -> new KeeperException.NoNodeException(path));
ClientBuilder clientBuilder = PulsarClient.builder()
.enableTcpNoDelay(false)
.connectionsPerBroker(pulsar.getConfiguration().getReplicationConnectionsPerBroker())
.statsInterval(0, TimeUnit.SECONDS);
// Apply all arbitrary configuration. This must be called before setting any fields annotated as
// @Secret on the ClientConfigurationData object because of the way they are serialized.
// See https://github.com/apache/pulsar/issues/8509 for more information.
clientBuilder.loadConf(PropertiesUtils.filterAndMapProperties(pulsar.getConfiguration().getProperties(),
"brokerClient_"));
if (pulsar.getConfiguration().isAuthenticationEnabled()) {
clientBuilder.authentication(pulsar.getConfiguration().getBrokerClientAuthenticationPlugin(),
pulsar.getConfiguration().getBrokerClientAuthenticationParameters());
}
if (pulsar.getConfiguration().isBrokerClientTlsEnabled()) {
clientBuilder
.serviceUrl(isNotBlank(data.getBrokerServiceUrlTls()) ? data.getBrokerServiceUrlTls()
: data.getServiceUrlTls())
.enableTls(true)
.allowTlsInsecureConnection(pulsar.getConfiguration().isTlsAllowInsecureConnection());
if (pulsar.getConfiguration().isBrokerClientTlsEnabledWithKeyStore()) {
clientBuilder.useKeyStoreTls(true)
.tlsTrustStoreType(pulsar.getConfiguration().getBrokerClientTlsTrustStoreType())
.tlsTrustStorePath(pulsar.getConfiguration().getBrokerClientTlsTrustStore())
.tlsTrustStorePassword(pulsar.getConfiguration()
.getBrokerClientTlsTrustStorePassword());
} else {
clientBuilder.tlsTrustCertsFilePath(pulsar.getConfiguration()
.getBrokerClientTrustCertsFilePath());
}
} else {
clientBuilder.serviceUrl(
isNotBlank(data.getBrokerServiceUrl()) ? data.getBrokerServiceUrl() : data.getServiceUrl());
}
if (data.getProxyProtocol() != null && StringUtils.isNotBlank(data.getProxyServiceUrl())) {
clientBuilder.proxyServiceUrl(data.getProxyServiceUrl(), data.getProxyProtocol());
log.info("Configuring proxy-url {} with protocol {}", data.getProxyServiceUrl(),
data.getProxyProtocol());
}
// Share all the IO threads across broker and client connections
ClientConfigurationData conf = ((ClientBuilderImpl) clientBuilder).getClientConfigurationData();
return new PulsarClientImpl(conf, workerGroup);
} catch (Exception e) {
throw new RuntimeException(e);
}
});
}
public PulsarAdmin getClusterPulsarAdmin(String cluster) {
PulsarAdmin admin = clusterAdmins.get(cluster);
if (admin != null) {
return admin;
}
return clusterAdmins.computeIfAbsent(cluster, key -> {
try {
String path = PulsarWebResource.path("clusters", cluster);
ClusterData data = this.pulsar.getConfigurationCache().clustersCache().get(path)
.orElseThrow(() -> new KeeperException.NoNodeException(path));