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From GitBox <...@apache.org>
Subject [GitHub] sijie closed pull request #3118: UnAcked message tracker based on TimePartition
Date Sat, 22 Dec 2018 14:04:50 GMT
sijie closed pull request #3118: UnAcked message tracker based on TimePartition
URL: https://github.com/apache/pulsar/pull/3118
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/PerMessageUnAcknowledgedRedeliveryTest.java
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/PerMessageUnAcknowledgedRedeliveryTest.java
index 87f8d366dc..6db887b37f 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/PerMessageUnAcknowledgedRedeliveryTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/PerMessageUnAcknowledgedRedeliveryTest.java
@@ -112,7 +112,7 @@ public void testSharedAckedNormalTopic() throws Exception {
         assertEquals(received, 5);
 
         // 7. Simulate ackTimeout
-        ((ConsumerImpl<byte[]>) consumer).getUnAckedMessageTracker().toggle();
+        Thread.sleep(ackTimeOutMillis);
 
         // 8. producer publish more messages
         for (int i = 0; i < totalMessages / 3; i++) {
@@ -210,7 +210,7 @@ public void testExclusiveAckedNormalTopic() throws Exception {
         assertEquals(received, 5);
 
         // 7. Simulate ackTimeout
-        ((ConsumerImpl<byte[]>) consumer).getUnAckedMessageTracker().toggle();
+        Thread.sleep(ackTimeOutMillis);
 
         // 8. producer publish more messages
         for (int i = 0; i < totalMessages / 3; i++) {
@@ -308,7 +308,7 @@ public void testFailoverAckedNormalTopic() throws Exception {
         assertEquals(received, 5);
 
         // 7. Simulate ackTimeout
-        ((ConsumerImpl<byte[]>) consumer).getUnAckedMessageTracker().toggle();
+        Thread.sleep(ackTimeOutMillis);
 
         // 8. producer publish more messages
         for (int i = 0; i < totalMessages / 3; i++) {
@@ -415,8 +415,7 @@ public void testSharedAckedPartitionedTopic() throws Exception {
         assertEquals(received, 5);
 
         // 7. Simulate ackTimeout
-        ((MultiTopicsConsumerImpl<byte[]>) consumer).getUnAckedMessageTracker().toggle();
-        ((MultiTopicsConsumerImpl<byte[]>) consumer).getConsumers().forEach(c ->
c.getUnAckedMessageTracker().toggle());
+        Thread.sleep(ackTimeOutMillis);
 
         // 8. producer publish more messages
         for (int i = 0; i < totalMessages / 3; i++) {
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/TopicsConsumerImplTest.java
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/TopicsConsumerImplTest.java
index 55be9ecbd4..b791033c9d 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/TopicsConsumerImplTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/TopicsConsumerImplTest.java
@@ -381,8 +381,7 @@ public void testConsumerUnackedRedelivery() throws Exception {
         assertEquals(received, totalMessages);
 
         // 8. Simulate ackTimeout
-        ((MultiTopicsConsumerImpl<byte[]>) consumer).getUnAckedMessageTracker().toggle();
-        ((MultiTopicsConsumerImpl<byte[]>) consumer).getConsumers().forEach(c ->
c.getUnAckedMessageTracker().toggle());
+        Thread.sleep(ackTimeOutMillis);
 
         // 9. producer publish more messages
         for (int i = 0; i < totalMessages / 3; i++) {
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/api/ConsumerConfiguration.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/api/ConsumerConfiguration.java
index 5ffba38ffc..4539d6d6e0 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/api/ConsumerConfiguration.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/api/ConsumerConfiguration.java
@@ -20,13 +20,13 @@
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
+import org.apache.pulsar.client.impl.conf.ConsumerConfigurationData;
 
 import java.io.Serializable;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
-import org.apache.pulsar.client.impl.conf.ConsumerConfigurationData;
-import org.apache.pulsar.client.api.SubscriptionInitialPosition;
+
 /**
  * Class specifying the configuration of a consumer. In Exclusive subscription, only a single
consumer is allowed to
  * attach to the subscription. Other consumers will get an error message. In Shared subscription,
multiple consumers
@@ -60,6 +60,10 @@ public long getAckTimeoutMillis() {
         return conf.getAckTimeoutMillis();
     }
 
+    public long getTickDurationMillis() {
+        return conf.getTickDurationMillis();
+    }
+
     /**
      * Set the timeout for unacked messages, truncated to the nearest millisecond. The timeout
needs to be greater than
      * 10 seconds.
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBuilderImpl.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBuilderImpl.java
index b83804be8c..4ee0feb68a 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBuilderImpl.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBuilderImpl.java
@@ -49,7 +49,6 @@
 import org.apache.pulsar.common.util.FutureUtil;
 
 import com.google.common.collect.Lists;
-
 import lombok.NonNull;
 
 public class ConsumerBuilderImpl<T> implements ConsumerBuilder<T> {
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java
index 3e2d4d6a8a..df65361b9a 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java
@@ -27,7 +27,6 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.Iterables;
-
 import io.netty.buffer.ByteBuf;
 import io.netty.util.Timeout;
 
@@ -52,11 +51,11 @@
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 import java.util.stream.Collectors;
 
-
 import org.apache.commons.lang3.StringUtils;
 import org.apache.pulsar.client.api.Consumer;
 import org.apache.pulsar.client.api.ConsumerCryptoFailureAction;
 import org.apache.pulsar.client.api.ConsumerStats;
+import org.apache.pulsar.client.api.DeadLetterPolicy;
 import org.apache.pulsar.client.api.Message;
 import org.apache.pulsar.client.api.MessageId;
 import org.apache.pulsar.client.api.Producer;
@@ -66,7 +65,6 @@
 import org.apache.pulsar.client.api.SubscriptionType;
 import org.apache.pulsar.client.impl.conf.ConsumerConfigurationData;
 import org.apache.pulsar.common.api.Commands;
-import org.apache.pulsar.client.api.DeadLetterPolicy;
 import org.apache.pulsar.common.api.EncryptionContext;
 import org.apache.pulsar.common.api.EncryptionContext.EncryptionKey;
 import org.apache.pulsar.common.api.PulsarDecoder;
@@ -188,7 +186,11 @@
         }
 
         if (conf.getAckTimeoutMillis() != 0) {
-            this.unAckedMessageTracker = new UnAckedMessageTracker(client, this, conf.getAckTimeoutMillis());
+            if (conf.getTickDurationMillis() > 0) {
+                this.unAckedMessageTracker = new UnAckedMessageTracker(client, this, conf.getAckTimeoutMillis(),
conf.getTickDurationMillis());
+            } else {
+                this.unAckedMessageTracker = new UnAckedMessageTracker(client, this, conf.getAckTimeoutMillis());
+            }
         } else {
             this.unAckedMessageTracker = UnAckedMessageTracker.UNACKED_MESSAGE_TRACKER_DISABLED;
         }
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java
index 41821ad93a..e9ef632d1a 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java
@@ -99,7 +99,11 @@
         this.allTopicPartitionsNumber = new AtomicInteger(0);
 
         if (conf.getAckTimeoutMillis() != 0) {
-            this.unAckedMessageTracker = new UnAckedTopicMessageTracker(client, this, conf.getAckTimeoutMillis());
+            if (conf.getTickDurationMillis() > 0) {
+                this.unAckedMessageTracker = new UnAckedTopicMessageTracker(client, this,
conf.getAckTimeoutMillis(), conf.getTickDurationMillis());
+            } else {
+                this.unAckedMessageTracker = new UnAckedTopicMessageTracker(client, this,
conf.getAckTimeoutMillis());
+            }
         } else {
             this.unAckedMessageTracker = UnAckedMessageTracker.UNACKED_MESSAGE_TRACKER_DISABLED;
         }
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedMessageTracker.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedMessageTracker.java
index 266eb3b9db..d31d353ac8 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedMessageTracker.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedMessageTracker.java
@@ -18,29 +18,36 @@
  */
 package org.apache.pulsar.client.impl;
 
+import com.google.common.base.Preconditions;
 import io.netty.util.Timeout;
 import io.netty.util.TimerTask;
+import org.apache.pulsar.client.api.MessageId;
+import org.apache.pulsar.common.util.collections.ConcurrentOpenHashSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.io.Closeable;
 import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
-import org.apache.pulsar.client.api.MessageId;
-import org.apache.pulsar.common.util.collections.ConcurrentOpenHashSet;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 public class UnAckedMessageTracker implements Closeable {
     private static final Logger log = LoggerFactory.getLogger(UnAckedMessageTracker.class);
-    protected ConcurrentOpenHashSet<MessageId> currentSet;
-    protected ConcurrentOpenHashSet<MessageId> oldOpenSet;
-    private final ReentrantReadWriteLock readWriteLock;
+
+    protected final ConcurrentHashMap<MessageId, ConcurrentOpenHashSet<MessageId>>
messageIdPartitionMap;
+    protected final LinkedList<ConcurrentOpenHashSet<MessageId>> timePartitions;
+
     protected final Lock readLock;
-    private final Lock writeLock;
-    private Timeout timeout;
+    protected final Lock writeLock;
 
     public static final UnAckedMessageTrackerDisabled UNACKED_MESSAGE_TRACKER_DISABLED =
new UnAckedMessageTrackerDisabled();
+    private final long ackTimeoutMillis;
+    private final long tickDurationInMs;
 
     private static class UnAckedMessageTrackerDisabled extends UnAckedMessageTracker {
         @Override
@@ -67,116 +74,138 @@ public void close() {
         }
     }
 
+    private Timeout timeout;
+
     public UnAckedMessageTracker() {
-        readWriteLock = null;
         readLock = null;
         writeLock = null;
+        timePartitions = null;
+        messageIdPartitionMap = null;
+        this.ackTimeoutMillis = 0;
+        this.tickDurationInMs = 0;
     }
 
     public UnAckedMessageTracker(PulsarClientImpl client, ConsumerBase<?> consumerBase,
long ackTimeoutMillis) {
-        currentSet = new ConcurrentOpenHashSet<MessageId>();
-        oldOpenSet = new ConcurrentOpenHashSet<MessageId>();
-        readWriteLock = new ReentrantReadWriteLock();
-        readLock = readWriteLock.readLock();
-        writeLock = readWriteLock.writeLock();
-        start(client, consumerBase, ackTimeoutMillis);
+        this(client, consumerBase, ackTimeoutMillis, ackTimeoutMillis);
     }
 
-    public void start(PulsarClientImpl client, ConsumerBase<?> consumerBase, long ackTimeoutMillis)
{
-        this.stop();
+    public UnAckedMessageTracker(PulsarClientImpl client, ConsumerBase<?> consumerBase,
long ackTimeoutMillis, long tickDurationInMs) {
+        Preconditions.checkArgument(tickDurationInMs > 0 && ackTimeoutMillis >=
tickDurationInMs);
+        this.ackTimeoutMillis = ackTimeoutMillis;
+        this.tickDurationInMs = tickDurationInMs;
+        ReentrantReadWriteLock readWriteLock = new ReentrantReadWriteLock();
+        this.readLock = readWriteLock.readLock();
+        this.writeLock = readWriteLock.writeLock();
+        this.messageIdPartitionMap = new ConcurrentHashMap<>();
+        this.timePartitions = new LinkedList<>();
+
+        int blankPartitions = (int)Math.ceil((double)this.ackTimeoutMillis / this.tickDurationInMs);
+        for (int i = 0; i < blankPartitions + 1; i++) {
+            timePartitions.add(new ConcurrentOpenHashSet<>());
+        }
+
         timeout = client.timer().newTimeout(new TimerTask() {
             @Override
             public void run(Timeout t) throws Exception {
-                if (isAckTimeout()) {
-                    log.warn("[{}] {} messages have timed-out", consumerBase, oldOpenSet.size());
-                    Set<MessageId> messageIds = new HashSet<>();
-                    oldOpenSet.forEach(messageIds::add);
-                    oldOpenSet.clear();
+                Set<MessageId> messageIds = new HashSet<>();
+                writeLock.lock();
+                try {
+                    timePartitions.addLast(new ConcurrentOpenHashSet<>());
+                    ConcurrentOpenHashSet<MessageId> headPartition = timePartitions.removeFirst();
+                    if (!headPartition.isEmpty()) {
+                        log.warn("[{}] {} messages have timed-out", consumerBase, timePartitions.size());
+                        headPartition.forEach(messageId -> {
+                            messageIds.add(messageId);
+                            messageIdPartitionMap.remove(messageId);
+                        });
+                    }
+                } finally {
+                    writeLock.unlock();
+                }
+                if (messageIds.size() > 0) {
                     consumerBase.redeliverUnacknowledgedMessages(messageIds);
                 }
-                toggle();
-                timeout = client.timer().newTimeout(this, ackTimeoutMillis, TimeUnit.MILLISECONDS);
+                timeout = client.timer().newTimeout(this, tickDurationInMs, TimeUnit.MILLISECONDS);
             }
-        }, ackTimeoutMillis, TimeUnit.MILLISECONDS);
+        }, this.tickDurationInMs, TimeUnit.MILLISECONDS);
     }
 
-    void toggle() {
+    public void clear() {
         writeLock.lock();
         try {
-            ConcurrentOpenHashSet<MessageId> temp = currentSet;
-            currentSet = oldOpenSet;
-            oldOpenSet = temp;
+            messageIdPartitionMap.clear();
+            timePartitions.clear();
+            int blankPartitions = (int)Math.ceil((double)ackTimeoutMillis / tickDurationInMs);
+            for (int i = 0; i < blankPartitions + 1; i++) {
+                timePartitions.add(new ConcurrentOpenHashSet<>());
+            }
         } finally {
             writeLock.unlock();
         }
     }
 
-    public void clear() {
-        readLock.lock();
-        try {
-            currentSet.clear();
-            oldOpenSet.clear();
-        } finally {
-            readLock.unlock();
-        }
-    }
-
-    public boolean add(MessageId m) {
-        readLock.lock();
+    public boolean add(MessageId messageId) {
+        writeLock.lock();
         try {
-            oldOpenSet.remove(m);
-            return currentSet.add(m);
+            ConcurrentOpenHashSet<MessageId> partition = timePartitions.peekLast();
+            messageIdPartitionMap.put(messageId, partition);
+            return partition.add(messageId);
         } finally {
-            readLock.unlock();
+            writeLock.unlock();
         }
-
     }
 
     boolean isEmpty() {
         readLock.lock();
         try {
-            return currentSet.isEmpty() && oldOpenSet.isEmpty();
+            return messageIdPartitionMap.isEmpty();
         } finally {
             readLock.unlock();
         }
     }
 
-    public boolean remove(MessageId m) {
-        readLock.lock();
+    public boolean remove(MessageId messageId) {
+        writeLock.lock();
         try {
-            return currentSet.remove(m) || oldOpenSet.remove(m);
+            boolean removed = false;
+            ConcurrentOpenHashSet<MessageId> exist = messageIdPartitionMap.remove(messageId);
+            if (exist != null) {
+                removed = exist.remove(messageId);
+            }
+            return removed;
         } finally {
-            readLock.unlock();
+            writeLock.unlock();
         }
     }
 
     long size() {
         readLock.lock();
         try {
-            return currentSet.size() + oldOpenSet.size();
-        } finally {
-            readLock.unlock();
-        }
-    }
-
-    private boolean isAckTimeout() {
-        readLock.lock();
-        try {
-            return !oldOpenSet.isEmpty();
+            return messageIdPartitionMap.size();
         } finally {
             readLock.unlock();
         }
     }
 
     public int removeMessagesTill(MessageId msgId) {
-        readLock.lock();
+        writeLock.lock();
         try {
-            int currentSetRemovedMsgCount = currentSet.removeIf(m -> (m.compareTo(msgId)
<= 0));
-            int oldSetRemovedMsgCount = oldOpenSet.removeIf(m -> (m.compareTo(msgId) <=
0));
-
-            return currentSetRemovedMsgCount + oldSetRemovedMsgCount;
+            int removed = 0;
+            Iterator<MessageId> iterator = messageIdPartitionMap.keySet().iterator();
+            while (iterator.hasNext()) {
+                MessageId messageId = iterator.next();
+                if (messageId.compareTo(msgId) <= 0) {
+                    ConcurrentOpenHashSet<MessageId> exist = messageIdPartitionMap.get(messageId);
+                    if (exist != null) {
+                        exist.remove(messageId);
+                    }
+                    iterator.remove();
+                    removed ++;
+                }
+            }
+            return removed;
         } finally {
-            readLock.unlock();
+            writeLock.unlock();
         }
     }
 
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedTopicMessageTracker.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedTopicMessageTracker.java
index f500fda040..afe9a5e072 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedTopicMessageTracker.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/UnAckedTopicMessageTracker.java
@@ -18,7 +18,10 @@
  */
 package org.apache.pulsar.client.impl;
 
-import static com.google.common.base.Preconditions.checkState;
+import org.apache.pulsar.client.api.MessageId;
+import org.apache.pulsar.common.util.collections.ConcurrentOpenHashSet;
+
+import java.util.Iterator;
 
 public class UnAckedTopicMessageTracker extends UnAckedMessageTracker {
 
@@ -26,23 +29,30 @@ public UnAckedTopicMessageTracker(PulsarClientImpl client, ConsumerBase<?>
consu
         super(client, consumerBase, ackTimeoutMillis);
     }
 
+    public UnAckedTopicMessageTracker(PulsarClientImpl client, ConsumerBase<?> consumerBase,
long ackTimeoutMillis, long tickDurationMillis) {
+        super(client, consumerBase, ackTimeoutMillis, tickDurationMillis);
+    }
+
     public int removeTopicMessages(String topicName) {
-        readLock.lock();
+        writeLock.lock();
         try {
-            int currentSetRemovedMsgCount = currentSet.removeIf(m -> {
-                checkState(m instanceof TopicMessageIdImpl,
-                    "message should be of type TopicMessageIdImpl");
-                return ((TopicMessageIdImpl)m).getTopicPartitionName().contains(topicName);
-            });
-            int oldSetRemovedMsgCount = oldOpenSet.removeIf(m -> {
-                checkState(m instanceof TopicMessageIdImpl,
-                    "message should be of type TopicMessageIdImpl");
-                return ((TopicMessageIdImpl)m).getTopicPartitionName().contains(topicName);
-            });
-
-            return currentSetRemovedMsgCount + oldSetRemovedMsgCount;
+            int removed = 0;
+            Iterator<MessageId> iterator = messageIdPartitionMap.keySet().iterator();
+            while (iterator.hasNext()) {
+                MessageId messageId = iterator.next();
+                if (messageId instanceof TopicMessageIdImpl &&
+                        ((TopicMessageIdImpl)messageId).getTopicPartitionName().contains(topicName))
{
+                    ConcurrentOpenHashSet<MessageId> exist = messageIdPartitionMap.get(messageId);
+                    if (exist != null) {
+                        exist.remove(messageId);
+                    }
+                    iterator.remove();
+                    removed ++;
+                }
+            }
+            return removed;
         } finally {
-            readLock.unlock();
+            writeLock.unlock();
         }
     }
 
diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/conf/ConsumerConfigurationData.java
b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/conf/ConsumerConfigurationData.java
index 7e92d1245d..2c56b61dd0 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/conf/ConsumerConfigurationData.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/conf/ConsumerConfigurationData.java
@@ -23,22 +23,22 @@
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+
 import java.io.Serializable;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.TreeMap;
 import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
 
 import lombok.Data;
-
-import java.util.regex.Pattern;
 import org.apache.pulsar.client.api.ConsumerCryptoFailureAction;
 import org.apache.pulsar.client.api.ConsumerEventListener;
 import org.apache.pulsar.client.api.CryptoKeyReader;
 import org.apache.pulsar.client.api.DeadLetterPolicy;
 import org.apache.pulsar.client.api.MessageListener;
-import org.apache.pulsar.client.api.SubscriptionType;
 import org.apache.pulsar.client.api.SubscriptionInitialPosition;
+import org.apache.pulsar.client.api.SubscriptionType;
 import org.apache.pulsar.common.api.proto.PulsarApi.CommandGetTopicsOfNamespace.Mode;
 
 @Data
@@ -69,6 +69,8 @@
 
     private long ackTimeoutMillis = 0;
 
+    private long tickDurationMillis = 1000;
+
     private int priorityLevel = 0;
 
     @JsonIgnore


 

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