Polish lite pull consumer (#1349)

* fix unsubscribe code * fix commit consumed offset * fix commit consumed offset * fix commit consumed offset * fix commit consumed offset * polish commit consumed offset * pass checkstyle * pass checkstyle * polish LiteMQPullConsumer * add flow control and polish commit logic * fix bug * polish code * fix commit consumed offset back * refactor litePullConsumer * development save * development save * Refactor DefaultLitePullConsumer and DefaultLitePullConsumerImpl. * Polish lite pull consumer * polish lite pull consumer * polish lite pull consumer * fix seek
2026-08-30 18:10:44 +08:00 · 2019-07-30 10:59:13 +08:00
parent 62ca947a45
commit 83098eb604
11 changed files with 1661 additions and 653 deletions
@@ -1,132 +0,0 @@
-/*
- * 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.rocketmq.client.consumer;
-
-import java.util.Collection;
-import java.util.List;
-import org.apache.rocketmq.client.exception.MQClientException;
-import org.apache.rocketmq.client.impl.consumer.LiteMQPullConsumerImpl;
-import org.apache.rocketmq.common.message.MessageExt;
-import org.apache.rocketmq.common.message.MessageQueue;
-import org.apache.rocketmq.remoting.RPCHook;
-
-public class DefaultLiteMQPullConsumer extends DefaultMQPullConsumer implements LiteMQPullConsumer {
-    private LiteMQPullConsumerImpl liteMQPullConsumer;
-
-    /**
-     * Maximum amount of time in minutes a message may block the consuming thread.
-     */
-    private long consumeTimeout = 15;
-
-    /**
-     * Is auto commit offset
-     */
-    private boolean autoCommit = true;
-
-    private int pullThreadNumbers = 20;
-
-    /**
-     * Maximum commit offset interval time in seconds.
-     */
-    private long autoCommitInterval = 5;
-
-    public DefaultLiteMQPullConsumer(String consumerGroup, RPCHook rpcHook) {
-        this.setConsumerGroup(consumerGroup);
-        this.liteMQPullConsumer = new LiteMQPullConsumerImpl(this, rpcHook);
-    }
-
-    public DefaultLiteMQPullConsumer(String consumerGroup) {
-        this.setConsumerGroup(consumerGroup);
-        this.liteMQPullConsumer = new LiteMQPullConsumerImpl(this, null);
-    }
-
-    @Override
-    public void start() throws MQClientException {
-        this.liteMQPullConsumer.start();
-    }
-
-    @Override
-    public void subscribe(String topic, String subExpression) throws MQClientException {
-        this.liteMQPullConsumer.subscribe(topic, subExpression);
-    }
-
-    @Override
-    public void unsubscribe(String topic) {
-        this.liteMQPullConsumer.unsubscribe(topic);
-    }
-
-    @Override
-    public List<MessageExt> poll() {
-        return poll(this.getConsumerPullTimeoutMillis());
-    }
-
-    @Override public List<MessageExt> poll(long timeout) {
-        return liteMQPullConsumer.poll(timeout);
-    }
-
-    @Override
-    public void seek(MessageQueue messageQueue, long offset) throws MQClientException {
-        this.liteMQPullConsumer.seek(messageQueue, offset);
-    }
-
-    @Override
-    public void pause(Collection<MessageQueue> messageQueues) {
-        this.liteMQPullConsumer.pause(messageQueues);
-    }
-
-    @Override
-    public void resume(Collection<MessageQueue> messageQueues) {
-        this.liteMQPullConsumer.resume(messageQueues);
-    }
-
-    @Override
-    public void commitSync() {
-        this.liteMQPullConsumer.commitSync();
-    }
-
-    public long getConsumeTimeout() {
-        return consumeTimeout;
-    }
-
-    public void setConsumeTimeout(long consumeTimeout) {
-        this.consumeTimeout = consumeTimeout;
-    }
-
-    public boolean isAutoCommit() {
-        return autoCommit;
-    }
-
-    public void setAutoCommit(boolean autoCommit) {
-        this.autoCommit = autoCommit;
-    }
-
-    public int getPullThreadNumbers() {
-        return pullThreadNumbers;
-    }
-
-    public void setPullThreadNumbers(int pullThreadNumbers) {
-        this.pullThreadNumbers = pullThreadNumbers;
-    }
-
-    public long getAutoCommitInterval() {
-        return autoCommitInterval;
-    }
-
-    public void setAutoCommitInterval(long autoCommitInterval) {
-        this.autoCommitInterval = autoCommitInterval;
-    }
-}
@@ -0,0 +1,396 @@
+/*
+ * 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.rocketmq.client.consumer;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.rocketmq.client.ClientConfig;
+import org.apache.rocketmq.client.consumer.rebalance.AllocateMessageQueueAveragely;
+import org.apache.rocketmq.client.consumer.store.OffsetStore;
+import org.apache.rocketmq.client.exception.MQClientException;
+import org.apache.rocketmq.client.impl.consumer.DefaultLitePullConsumerImpl;
+import org.apache.rocketmq.common.MixAll;
+import org.apache.rocketmq.common.message.MessageExt;
+import org.apache.rocketmq.common.message.MessageQueue;
+import org.apache.rocketmq.common.protocol.heartbeat.MessageModel;
+import org.apache.rocketmq.remoting.RPCHook;
+
+
+public class DefaultLitePullConsumer extends ClientConfig implements LitePullConsumer {
+
+    private DefaultLitePullConsumerImpl defaultLitePullConsumerImpl;
+
+    /**
+     * Do the same thing for the same Group, the application must be set,and guarantee Globally unique
+     */
+    private String consumerGroup;
+
+    /**
+     * Long polling mode, the Consumer connection max suspend time, it is not recommended to modify
+     */
+    private long brokerSuspendMaxTimeMillis = 1000 * 20;
+
+
+    /**
+     * Long polling mode, the Consumer connection timeout(must greater than brokerSuspendMaxTimeMillis), it is not
+     * recommended to modify
+     */
+    private long consumerTimeoutMillisWhenSuspend = 1000 * 30;
+
+    /**
+     * The socket timeout in milliseconds
+     */
+    private long consumerPullTimeoutMillis = 1000 * 10;
+
+    /**
+     * Consumption pattern,default is clustering
+     */
+    private MessageModel messageModel = MessageModel.CLUSTERING;
+    /**
+     * Message queue listener
+     */
+    private MessageQueueListener messageQueueListener;
+    /**
+     * Offset Storage
+     */
+    private OffsetStore offsetStore;
+    /**
+     * Topic set you want to register
+     */
+    private Set<String> registerTopics = new HashSet<String>();
+    /**
+     * Queue allocation algorithm
+     */
+    private AllocateMessageQueueStrategy allocateMessageQueueStrategy = new AllocateMessageQueueAveragely();
+    /**
+     * Whether the unit of subscription group
+     */
+    private boolean unitMode = false;
+
+    private int maxReconsumeTimes = 16;
+    /**
+     * Maximum amount of time in minutes a message may block the consuming thread.
+     */
+    private long consumeTimeout = 15;
+
+    /**
+     * Is auto commit offset
+     */
+    private boolean autoCommit = true;
+
+    private int pullThreadNumbers = 20;
+
+    /**
+     * Maximum commit offset interval time in seconds.
+     */
+    private long autoCommitInterval = 5;
+
+    /**
+     * Maximum number of messages pulled each time.
+     */
+    private int pullBatchNums = 10;
+
+    /**
+     * Flow control threshold for consume request, each consumer will cache at most 10000 consume requests by default.
+     * Consider the {@code pullBatchSize}, the instantaneous value may exceed the limit
+     */
+    private long pullThresholdForAll = 10000;
+
+    /**
+     * Consume max span offset.
+     */
+    private int consumeMaxSpan = 2000;
+
+    /**
+     * Flow control threshold on queue level, each message queue will cache at most 1000 messages by default, Consider
+     * the {@code pullBatchSize}, the instantaneous value may exceed the limit
+     */
+    private int pullThresholdForQueue = 1000;
+
+    /**
+     * Limit the cached message size on queue level, each message queue will cache at most 100 MiB messages by default,
+     * Consider the {@code pullBatchSize}, the instantaneous value may exceed the limit
+     *
+     * <p>
+     * The size of a message only measured by message body, so it's not accurate
+     */
+    private int pullThresholdSizeForQueue = 100;
+
+    /**
+     * The socket timeout in milliseconds
+     */
+    private long pollTimeoutMillis = 1000 * 5;
+
+    public DefaultLitePullConsumer() {
+        this(null, MixAll.DEFAULT_CONSUMER_GROUP, null);
+    }
+
+    public DefaultLitePullConsumer(final String consumerGroup) {
+        this(null, consumerGroup, null);
+    }
+
+    public DefaultLitePullConsumer(RPCHook rpcHook) {
+        this(null, MixAll.DEFAULT_CONSUMER_GROUP, rpcHook);
+    }
+
+    public DefaultLitePullConsumer(final String consumerGroup, RPCHook rpcHook) {
+        this(null, consumerGroup, rpcHook);
+    }
+
+    /**
+     * Constructor specifying namespace, consumer group and RPC hook.
+     *
+     * @param consumerGroup Consumer group.
+     * @param rpcHook RPC hook to execute before each remoting command.
+     */
+    public DefaultLitePullConsumer(final String namespace, final String consumerGroup, RPCHook rpcHook) {
+        this.namespace = namespace;
+        this.consumerGroup = consumerGroup;
+        defaultLitePullConsumerImpl = new DefaultLitePullConsumerImpl(this,rpcHook);
+    }
+
+    @Override
+    public void start() throws MQClientException {
+        this.defaultLitePullConsumerImpl.start();
+    }
+
+    @Override
+    public void shutdown() {
+        this.defaultLitePullConsumerImpl.shutdown();
+    }
+
+    @Override
+    public void subscribe(String topic, String subExpression) throws MQClientException {
+        this.defaultLitePullConsumerImpl.subscribe(topic, subExpression);
+    }
+
+    @Override
+    public void unsubscribe(String topic) {
+        this.defaultLitePullConsumerImpl.unsubscribe(topic);
+    }
+
+    @Override
+    public void assign(Collection<MessageQueue> messageQueues) {
+        defaultLitePullConsumerImpl.assign(messageQueues);
+    }
+
+    @Override
+    public List<MessageExt> poll() {
+        return defaultLitePullConsumerImpl.poll(this.getPollTimeoutMillis());
+    }
+
+    @Override
+    public List<MessageExt> poll(long timeout) {
+        return defaultLitePullConsumerImpl.poll(timeout);
+    }
+
+    @Override
+    public void seek(MessageQueue messageQueue, long offset) throws MQClientException {
+        this.defaultLitePullConsumerImpl.seek(messageQueue, offset);
+    }
+
+    @Override
+    public void pause(Collection<MessageQueue> messageQueues) {
+        this.defaultLitePullConsumerImpl.pause(messageQueues);
+    }
+
+    @Override
+    public void resume(Collection<MessageQueue> messageQueues) {
+        this.defaultLitePullConsumerImpl.resume(messageQueues);
+    }
+
+    @Override
+    public Collection<MessageQueue> fetchMessageQueues(String topic) throws MQClientException{
+        return this.defaultLitePullConsumerImpl.fetchMessageQueues(withNamespace(topic));
+    }
+
+    @Override
+    public Long offsetForTimestamp(MessageQueue messageQueue, Long timestamp) throws MQClientException{
+        return this.defaultLitePullConsumerImpl.searchOffset(messageQueue,timestamp);
+    }
+
+    @Override
+    public void commitSync() {
+        this.defaultLitePullConsumerImpl.commitSync();
+    }
+
+    @Override
+    public boolean isAutoCommit() {
+        return autoCommit;
+    }
+
+    @Override
+    public void setAutoCommit(boolean autoCommit) {
+        this.autoCommit = autoCommit;
+    }
+
+    public long getConsumeTimeout() {
+        return consumeTimeout;
+    }
+
+    public void setConsumeTimeout(long consumeTimeout) {
+        this.consumeTimeout = consumeTimeout;
+    }
+
+    public int getPullThreadNumbers() {
+        return pullThreadNumbers;
+    }
+
+    public void setPullThreadNumbers(int pullThreadNumbers) {
+        this.pullThreadNumbers = pullThreadNumbers;
+    }
+
+    public long getAutoCommitInterval() {
+        return autoCommitInterval;
+    }
+
+    public void setAutoCommitInterval(long autoCommitInterval) {
+        this.autoCommitInterval = autoCommitInterval;
+    }
+
+    public int getPullBatchNums() {
+        return pullBatchNums;
+    }
+
+    public void setPullBatchNums(int pullBatchNums) {
+        this.pullBatchNums = pullBatchNums;
+    }
+
+    public long getPullThresholdForAll() {
+        return pullThresholdForAll;
+    }
+
+    public void setPullThresholdForAll(long pullThresholdForAll) {
+        this.pullThresholdForAll = pullThresholdForAll;
+    }
+
+    public int getConsumeMaxSpan() {
+        return consumeMaxSpan;
+    }
+
+    public void setConsumeMaxSpan(int consumeMaxSpan) {
+        this.consumeMaxSpan = consumeMaxSpan;
+    }
+
+    public int getPullThresholdForQueue() {
+        return pullThresholdForQueue;
+    }
+
+    public void setPullThresholdForQueue(int pullThresholdForQueue) {
+        this.pullThresholdForQueue = pullThresholdForQueue;
+    }
+
+    public int getPullThresholdSizeForQueue() {
+        return pullThresholdSizeForQueue;
+    }
+
+    public void setPullThresholdSizeForQueue(int pullThresholdSizeForQueue) {
+        this.pullThresholdSizeForQueue = pullThresholdSizeForQueue;
+    }
+
+    public AllocateMessageQueueStrategy getAllocateMessageQueueStrategy() {
+        return allocateMessageQueueStrategy;
+    }
+
+    public void setAllocateMessageQueueStrategy(AllocateMessageQueueStrategy allocateMessageQueueStrategy) {
+        this.allocateMessageQueueStrategy = allocateMessageQueueStrategy;
+    }
+
+    public long getBrokerSuspendMaxTimeMillis() {
+        return brokerSuspendMaxTimeMillis;
+    }
+
+    public long getPollTimeoutMillis() {
+        return pollTimeoutMillis;
+    }
+
+    public void setPollTimeoutMillis(long pollTimeoutMillis) {
+        this.pollTimeoutMillis = pollTimeoutMillis;
+    }
+
+    public OffsetStore getOffsetStore() {
+        return offsetStore;
+    }
+
+    public void setOffsetStore(OffsetStore offsetStore) {
+        this.offsetStore = offsetStore;
+    }
+
+    public boolean isUnitMode() {
+        return unitMode;
+    }
+
+    public void setUnitMode(boolean isUnitMode) {
+        this.unitMode = isUnitMode;
+    }
+
+    public int getMaxReconsumeTimes() {
+        return maxReconsumeTimes;
+    }
+
+    public void setMaxReconsumeTimes(final int maxReconsumeTimes) {
+        this.maxReconsumeTimes = maxReconsumeTimes;
+    }
+
+    public MessageModel getMessageModel() {
+        return messageModel;
+    }
+
+    public void setMessageModel(MessageModel messageModel) {
+        this.messageModel = messageModel;
+    }
+
+    public String getConsumerGroup() {
+        return consumerGroup;
+    }
+
+    public MessageQueueListener getMessageQueueListener() {
+        return messageQueueListener;
+    }
+
+    public void setMessageQueueListener(MessageQueueListener messageQueueListener) {
+        this.messageQueueListener = messageQueueListener;
+    }
+
+    public Set<String> getRegisterTopics() {
+        return registerTopics;
+    }
+
+    public void setRegisterTopics(Set<String> registerTopics) {
+        this.registerTopics = withNamespace(registerTopics);
+    }
+
+    public long getConsumerPullTimeoutMillis() {
+        return consumerPullTimeoutMillis;
+    }
+
+    public void setConsumerPullTimeoutMillis(long consumerPullTimeoutMillis) {
+        this.consumerPullTimeoutMillis = consumerPullTimeoutMillis;
+    }
+
+    public long getConsumerTimeoutMillisWhenSuspend() {
+        return consumerTimeoutMillisWhenSuspend;
+    }
+
+    public void setConsumerTimeoutMillisWhenSuspend(long consumerTimeoutMillisWhenSuspend) {
+        this.consumerTimeoutMillisWhenSuspend = consumerTimeoutMillisWhenSuspend;
+    }
+
+}
@@ -18,16 +18,28 @@ package org.apache.rocketmq.client.consumer;

 import java.util.Collection;
 import java.util.List;
+
 import org.apache.rocketmq.client.exception.MQClientException;
 import org.apache.rocketmq.common.message.MessageExt;
 import org.apache.rocketmq.common.message.MessageQueue;

-public interface LiteMQPullConsumer {
+public interface LitePullConsumer {
+
+    /**
+     * Start the consumer
+     */
+    void start() throws MQClientException;
+
+    /**
+     * Shutdown the consumer
+     */
+    void shutdown();
+
    /**
     * Subscribe some topic
     *
     * @param subExpression subscription expression.it only support or operation such as "tag1 || tag2 || tag3" <br> if
-     * null or * expression,meaning subscribe all
+     *                      null or * expression,meaning subscribe all
     */
    void subscribe(final String topic, final String subExpression) throws MQClientException;

@@ -38,15 +50,27 @@ public interface LiteMQPullConsumer {
     */
    void unsubscribe(final String topic);

+    void assign(Collection<MessageQueue> messageQueues);
+
    List<MessageExt> poll();

    List<MessageExt> poll(long timeout);

    void seek(MessageQueue messageQueue, long offset) throws MQClientException;

-    void pause(Collection<MessageQueue> messageQueueCollection);
+    void pause(Collection<MessageQueue> messageQueues);

-    void resume(Collection<MessageQueue> partitions);
+    boolean isAutoCommit();
+
+    void setAutoCommit(boolean autoCommit);
+
+    void resume(Collection<MessageQueue> messageQueues);
+
+    Collection<MessageQueue> fetchMessageQueues(String topic) throws MQClientException;
+
+    Long offsetForTimestamp(MessageQueue messageQueue, Long timestamp) throws MQClientException;

    void commitSync();
+
+
 }
@@ -204,7 +204,6 @@ public class RemoteBrokerOffsetStore implements OffsetStore {
        MQBrokerException, InterruptedException, MQClientException {
        FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
        if (null == findBrokerResult) {
-
            this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
            findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
        }
@@ -19,25 +19,33 @@ package org.apache.rocketmq.client.impl.consumer;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Map;
-import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
-import org.apache.rocketmq.client.exception.MQClientException;
 import org.apache.rocketmq.common.message.MessageQueue;

 public class AssignedMessageQueue {

    private ConcurrentHashMap<MessageQueue, MessageQueueStat> assignedMessageQueueState;

+    private RebalanceImpl rebalanceImpl;
+
    public AssignedMessageQueue() {
        assignedMessageQueueState = new ConcurrentHashMap<MessageQueue, MessageQueueStat>();
    }

+    public void setRebalanceImpl(RebalanceImpl rebalanceImpl) {
+        this.rebalanceImpl = rebalanceImpl;
+    }
+
+    public Collection<MessageQueue> messageQueues(){
+        return assignedMessageQueueState.keySet();
+    }
+
    public boolean isPaused(MessageQueue messageQueue) {
        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
        if (messageQueueStat != null) {
            return messageQueueStat.isPaused();
        }
-        return false;
+        return true;
    }

    public void pause(Collection<MessageQueue> messageQueues) {
@@ -58,24 +66,60 @@ public class AssignedMessageQueue {
        }
    }

-    public long getNextOffset(MessageQueue messageQueue) throws MQClientException {
+    public ProcessQueue getProcessQueue(MessageQueue messageQueue) {
        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
-        if (assignedMessageQueueState.get(messageQueue) != null) {
+        if (messageQueueStat != null) {
+            return messageQueueStat.getProcessQueue();
+        }
+        return null;
+    }
+
+    public long getNextOffset(MessageQueue messageQueue) {
+        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
+        if (messageQueueStat != null) {
            return messageQueueStat.getNextOffset();
        }
        return -1;
    }

-    public void updateNextOffset(MessageQueue messageQueue, long offset) throws MQClientException {
+    public void updateNextOffset(MessageQueue messageQueue, long offset) {
        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
-        if (messageQueue == null) {
-            messageQueueStat = new MessageQueueStat(messageQueue, offset);
-            assignedMessageQueueState.putIfAbsent(messageQueue, messageQueueStat);
+        if (messageQueueStat != null) {
+            messageQueueStat.setNextOffset(offset);
        }
-        assignedMessageQueueState.get(messageQueue).setNextOffset(offset);
    }

-    public void updateAssignedMessageQueue(Set<MessageQueue> assigned) {
+    public long getConusmerOffset(MessageQueue messageQueue) {
+        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
+        if (messageQueueStat != null) {
+            return messageQueueStat.getConsumeOffset();
+        }
+        return -1;
+    }
+
+    public void updateConsumeOffset(MessageQueue messageQueue, long offset) {
+        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
+        if (messageQueueStat != null) {
+            messageQueueStat.setConsumeOffset(offset);
+        }
+    }
+
+    public void setSeekOffset(MessageQueue messageQueue, long offset) {
+        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
+        if (messageQueueStat != null) {
+            messageQueueStat.setSeekOffset(offset);
+        }
+    }
+
+    public long getSeekOffset(MessageQueue messageQueue) {
+        MessageQueueStat messageQueueStat = assignedMessageQueueState.get(messageQueue);
+        if (messageQueueStat != null) {
+            return messageQueueStat.getSeekOffset();
+        }
+        return -1;
+    }
+
+    public void updateAssignedMessageQueue(Collection<MessageQueue> assigned) {
        synchronized (this.assignedMessageQueueState) {
            Iterator<Map.Entry<MessageQueue, MessageQueueStat>> it = this.assignedMessageQueueState.entrySet().iterator();
            while (it.hasNext()) {
@@ -87,7 +131,13 @@ public class AssignedMessageQueue {

            for (MessageQueue messageQueue : assigned) {
                if (!this.assignedMessageQueueState.containsKey(messageQueue)) {
-                    MessageQueueStat messageQueueStat = new MessageQueueStat(messageQueue);
+                    MessageQueueStat messageQueueStat;
+                    if (rebalanceImpl != null && rebalanceImpl.processQueueTable.get(messageQueue) != null) {
+                        messageQueueStat = new MessageQueueStat(messageQueue, rebalanceImpl.processQueueTable.get(messageQueue));
+                    } else {
+                        ProcessQueue processQueue = new ProcessQueue();
+                        messageQueueStat = new MessageQueueStat(messageQueue, processQueue);
+                    }
                    this.assignedMessageQueueState.put(messageQueue, messageQueueStat);
                }
            }
@@ -108,16 +158,15 @@ public class AssignedMessageQueue {

    public class MessageQueueStat {
        private MessageQueue messageQueue;
+        private ProcessQueue processQueue;
        private boolean paused = false;
        private long nextOffset = -1;
+        private long consumeOffset = -1;
+        private volatile long seekOffset = -1;

-        public MessageQueueStat(MessageQueue messageQueue) {
+        public MessageQueueStat(MessageQueue messageQueue, ProcessQueue processQueue) {
            this.messageQueue = messageQueue;
-        }
-
-        public MessageQueueStat(MessageQueue messageQueue, long nextOffset) {
-            this.messageQueue = messageQueue;
-            this.nextOffset = nextOffset;
+            this.processQueue = processQueue;
        }

        public MessageQueue getMessageQueue() {
@@ -143,5 +192,29 @@ public class AssignedMessageQueue {
        public void setNextOffset(long nextOffset) {
            this.nextOffset = nextOffset;
        }
+
+        public ProcessQueue getProcessQueue() {
+            return processQueue;
+        }
+
+        public void setProcessQueue(ProcessQueue processQueue) {
+            this.processQueue = processQueue;
+        }
+
+        public long getConsumeOffset() {
+            return consumeOffset;
+        }
+
+        public void setConsumeOffset(long consumeOffset) {
+            this.consumeOffset = consumeOffset;
+        }
+
+        public long getSeekOffset() {
+            return seekOffset;
+        }
+
+        public void setSeekOffset(long seekOffset) {
+            this.seekOffset = seekOffset;
+        }
    }
 }
@@ -68,7 +68,7 @@ import org.apache.rocketmq.remoting.exception.RemotingException;

 public class DefaultMQPullConsumerImpl implements MQConsumerInner {
    private final InternalLogger log = ClientLogger.getLog();
-    protected final DefaultMQPullConsumer defaultMQPullConsumer;
+    private final DefaultMQPullConsumer defaultMQPullConsumer;
    private final long consumerStartTimestamp = System.currentTimeMillis();
    private final RPCHook rpcHook;
    private final ArrayList<ConsumeMessageHook> consumeMessageHookList = new ArrayList<ConsumeMessageHook>();
@@ -77,7 +77,7 @@ public class DefaultMQPullConsumerImpl implements MQConsumerInner {
    protected MQClientInstance mQClientFactory;
    private PullAPIWrapper pullAPIWrapper;
    private OffsetStore offsetStore;
-    protected RebalanceImpl rebalanceImpl = new RebalancePullImpl(this);
+    private RebalanceImpl rebalanceImpl = new RebalancePullImpl(this);

    public DefaultMQPullConsumerImpl(final DefaultMQPullConsumer defaultMQPullConsumer, final RPCHook rpcHook) {
        this.defaultMQPullConsumer = defaultMQPullConsumer;
@@ -1,469 +0,0 @@
-/*
- * 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.rocketmq.client.impl.consumer;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.TreeMap;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.Executors;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ScheduledThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.locks.ReadWriteLock;
-
-import org.apache.commons.lang3.reflect.FieldUtils;
-import org.apache.rocketmq.client.consumer.DefaultLiteMQPullConsumer;
-import org.apache.rocketmq.client.consumer.MessageQueueListener;
-import org.apache.rocketmq.client.consumer.PullResult;
-import org.apache.rocketmq.client.exception.MQClientException;
-import org.apache.rocketmq.client.log.ClientLogger;
-import org.apache.rocketmq.common.ThreadFactoryImpl;
-import org.apache.rocketmq.common.filter.FilterAPI;
-import org.apache.rocketmq.common.message.MessageAccessor;
-import org.apache.rocketmq.common.message.MessageExt;
-import org.apache.rocketmq.common.message.MessageQueue;
-import org.apache.rocketmq.common.protocol.heartbeat.MessageModel;
-import org.apache.rocketmq.common.protocol.heartbeat.SubscriptionData;
-import org.apache.rocketmq.logging.InternalLogger;
-import org.apache.rocketmq.remoting.RPCHook;
-
-public class LiteMQPullConsumerImpl extends DefaultMQPullConsumerImpl {
-
-    private final InternalLogger log = ClientLogger.getLog();
-
-    private DefaultLiteMQPullConsumer defaultLiteMQPullConsumer;
-
-    private final ConcurrentMap<MessageQueue, PullTaskImpl> taskTable =
-        new ConcurrentHashMap<MessageQueue, PullTaskImpl>();
-
-    private AssignedMessageQueue assignedMessageQueue = new AssignedMessageQueue();
-
-    private volatile Set<ConsumeRequest> consumedSet = new HashSet<ConsumeRequest>();
-
-    private final BlockingQueue<ConsumeRequest> consumeRequestCache = new LinkedBlockingQueue<ConsumeRequest>();
-
-    private final ScheduledExecutorService cleanExpireMsgExecutors;
-
-    private ScheduledThreadPoolExecutor scheduledThreadPoolExecutor;
-
-    private ScheduledExecutorService autoCommitExecutors;
-
-    private final ThreadLocal<ConsumeRequest> preConsumeRequestLocal = new ThreadLocal<ConsumeRequest>();
-
-    public LiteMQPullConsumerImpl(final DefaultLiteMQPullConsumer defaultMQPullConsumer, final RPCHook rpcHook) {
-        super(defaultMQPullConsumer, rpcHook);
-        this.defaultLiteMQPullConsumer = defaultMQPullConsumer;
-        this.cleanExpireMsgExecutors = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
-            "Lite_CleanExpireMsgScheduledThread_"));
-        this.autoCommitExecutors = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
-            "Lite_AutoCommitScheduledThread_"));
-
-    }
-
-    public void updateAssignedMessageQueue(String topic, Set<MessageQueue> assignedMessageQueue) {
-        this.assignedMessageQueue.updateAssignedMessageQueue(assignedMessageQueue);
-        updatePullTask(topic, assignedMessageQueue);
-    }
-
-    public void updatePullTask(String topic, Set<MessageQueue> mqNewSet) {
-        Iterator<Map.Entry<MessageQueue, PullTaskImpl>> it = this.taskTable.entrySet().iterator();
-        while (it.hasNext()) {
-            Map.Entry<MessageQueue, PullTaskImpl> next = it.next();
-            if (next.getKey().getTopic().equals(topic)) {
-                if (!mqNewSet.contains(next.getKey())) {
-                    next.getValue().setCancelled(true);
-                    it.remove();
-                }
-            }
-        }
-
-        for (MessageQueue messageQueue : mqNewSet) {
-            if (!this.taskTable.containsKey(messageQueue)) {
-                PullTaskImpl pullTask = new PullTaskImpl(messageQueue);
-                this.taskTable.put(messageQueue, pullTask);
-                this.scheduledThreadPoolExecutor.schedule(pullTask, 0, TimeUnit.MILLISECONDS);
-            }
-        }
-    }
-
-    class MessageQueueListenerImpl implements MessageQueueListener {
-        @Override
-        public void messageQueueChanged(String topic, Set<MessageQueue> mqAll, Set<MessageQueue> mqDivided) {
-            MessageModel messageModel = defaultMQPullConsumer.getMessageModel();
-            switch (messageModel) {
-                case BROADCASTING:
-                    updateAssignedMessageQueue(topic, mqAll);
-                    break;
-                case CLUSTERING:
-                    updateAssignedMessageQueue(topic, mqDivided);
-                    break;
-                default:
-                    break;
-            }
-        }
-    }
-
-    int nextPullBatchNums() {
-        return Math.min(10, consumeRequestCache.remainingCapacity());
-    }
-
-    @Override
-    public synchronized void start() throws MQClientException {
-        this.defaultMQPullConsumer.setMessageQueueListener(new MessageQueueListenerImpl());
-        super.start();
-        final String group = this.defaultMQPullConsumer.getConsumerGroup();
-        this.scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(
-            this.defaultLiteMQPullConsumer.getPullThreadNumbers(),
-            new ThreadFactoryImpl("PullMsgThread-" + group)
-        );
-        this.cleanExpireMsgExecutors.scheduleAtFixedRate(new Runnable() {
-            @Override
-            public void run() {
-                cleanExpireMsg();
-            }
-        }, this.defaultLiteMQPullConsumer.getConsumeTimeout(), this.defaultLiteMQPullConsumer.getConsumeTimeout(), TimeUnit.MINUTES);
-        this.autoCommitExecutors.scheduleAtFixedRate(new Runnable() {
-            @Override
-            public void run() {
-                if (defaultLiteMQPullConsumer.isAutoCommit()) {
-                    commitAll();
-                }
-            }
-        }, this.defaultLiteMQPullConsumer.getAutoCommitInterval(), this.defaultLiteMQPullConsumer.getAutoCommitInterval(), TimeUnit.SECONDS);
-        updateTopicSubscribeInfoWhenSubscriptionChanged();
-    }
-
-    private void updateTopicSubscribeInfoWhenSubscriptionChanged() {
-        Map<String, SubscriptionData> subTable = rebalanceImpl.getSubscriptionInner();
-        if (subTable != null) {
-            for (final Map.Entry<String, SubscriptionData> entry : subTable.entrySet()) {
-                final String topic = entry.getKey();
-                this.mQClientFactory.updateTopicRouteInfoFromNameServer(topic);
-            }
-        }
-    }
-
-    public List<MessageExt> poll(long timeout) {
-        try {
-            addToConsumed(preConsumeRequestLocal.get());
-            ConsumeRequest consumeRequest = consumeRequestCache.poll(timeout, TimeUnit.MILLISECONDS);
-            preConsumeRequestLocal.set(consumeRequest);
-            if (consumeRequest != null) {
-                List<MessageExt> messages = consumeRequest.getMessageExts();
-                for (MessageExt messageExt : messages) {
-                    MessageAccessor.setConsumeStartTimeStamp(messageExt, String.valueOf(consumeRequest.getStartConsumeTimeMillis()));
-                }
-                consumeRequest.setStartConsumeTimeMillis(System.currentTimeMillis());
-                return messages;
-            }
-        } catch (InterruptedException e) {
-            log.error("poll ComsumeRequest error.", e);
-        }
-        return null;
-    }
-
-    public void pause(Collection<MessageQueue> messageQueues) {
-        assignedMessageQueue.pause(messageQueues);
-    }
-
-    public void resume(Collection<MessageQueue> messageQueues) {
-        assignedMessageQueue.resume(messageQueues);
-    }
-
-    public void seek(MessageQueue messageQueue, long offset) throws MQClientException {
-        this.updatePullOffset(messageQueue, offset);
-        try {
-            updateConsumeOffset(messageQueue, offset);
-        } catch (MQClientException ex) {
-            log.error("Seek offset to remote message queue error!", ex);
-            throw ex;
-        }
-    }
-
-    public void unsubscribe(final String topic) {
-        super.unsubscribe(topic);
-        removePullTaskCallback(topic);
-        assignedMessageQueue.removeAssignedMessageQueue(topic);
-    }
-
-    public void removePullTaskCallback(final String topic) {
-        removePullTask(topic);
-    }
-
-    public void removePullTask(final String topic) {
-        synchronized (this.taskTable) {
-            Iterator<Map.Entry<MessageQueue, PullTaskImpl>> it = this.taskTable.entrySet().iterator();
-            while (it.hasNext()) {
-                Map.Entry<MessageQueue, PullTaskImpl> next = it.next();
-                if (next.getKey().getTopic().equals(topic)) {
-                    next.getValue().setCancelled(true);
-                    it.remove();
-                }
-            }
-        }
-    }
-
-    public void commitSync() {
-        addToConsumed(preConsumeRequestLocal.get());
-        preConsumeRequestLocal.set(null);
-        commitAll();
-    }
-
-    public void commitAll() {
-        Set<ConsumeRequest> consumedRequests;
-        synchronized (this.consumedSet) {
-            consumedRequests = this.consumedSet;
-            this.consumedSet = new HashSet<ConsumeRequest>();
-        }
-        for (ConsumeRequest consumeRequest : consumedRequests) {
-            consumeRequest.getProcessQueue().removeMessage(consumeRequest.messageExts);
-        }
-        Set<Map.Entry<MessageQueue, ProcessQueue>> entrySet = this.rebalanceImpl.getProcessQueueTable().entrySet();
-        for (Map.Entry<MessageQueue, ProcessQueue> entry : entrySet) {
-            try {
-                long consumeOffset = entry.getValue().getConsumeOffset();
-                if (consumeOffset != -1)
-                    updateConsumeOffset(entry.getKey(), consumeOffset);
-            } catch (MQClientException e) {
-                log.error("A error occurred in update consume offset process.", e);
-            }
-        }
-        this.getOffsetStore().persistAll(this.rebalanceImpl.getProcessQueueTable().keySet());
-    }
-
-    private void commit(final MessageQueue messageQueue, final ProcessQueue processQueue, final MessageExt messageExt) {
-        long offset = processQueue.removeMessage(Collections.singletonList(messageExt));
-        try {
-            updateConsumeOffset(messageQueue, offset);
-        } catch (MQClientException e) {
-            log.error("An error occurred in update consume offset process.", e);
-        }
-    }
-
-    public void subscribe(String topic, String subExpression) throws MQClientException {
-        try {
-            SubscriptionData subscriptionData = FilterAPI.buildSubscriptionData(defaultMQPullConsumer.getConsumerGroup(),
-                topic, subExpression);
-            this.rebalanceImpl.getSubscriptionInner().put(topic, subscriptionData);
-            if (this.mQClientFactory != null) {
-                this.mQClientFactory.sendHeartbeatToAllBrokerWithLock();
-            }
-        } catch (Exception e) {
-            throw new MQClientException("subscription exception", e);
-        }
-    }
-
-    private void updatePullOffset(MessageQueue remoteQueue, long nextPullOffset) {
-        try {
-            assignedMessageQueue.updateNextOffset(remoteQueue, nextPullOffset);
-        } catch (MQClientException e) {
-            log.error("A error occurred in update consume: {} offset process.", remoteQueue, e);
-        }
-    }
-
-    private void addToConsumed(ConsumeRequest consumeRequest) {
-        if (consumeRequest != null) {
-            synchronized (this.consumedSet) {
-                if (!consumedSet.contains(consumeRequest))
-                    consumedSet.add(consumeRequest);
-            }
-        }
-    }
-
-    private void submitConsumeRequest(ConsumeRequest consumeRequest) {
-        try {
-            consumeRequestCache.put(consumeRequest);
-        } catch (InterruptedException ex) {
-            log.error("Submit consumeRequest error", ex);
-        }
-    }
-
-    private long nextPullOffset(MessageQueue remoteQueue) {
-        long offset = -1;
-        try {
-            offset = assignedMessageQueue.getNextOffset(remoteQueue);
-            if (offset == -1) {
-                offset = fetchConsumeOffset(remoteQueue, false);
-                assignedMessageQueue.updateNextOffset(remoteQueue, offset);
-            }
-        } catch (MQClientException e) {
-            log.error("An error occurred in fetch consume offset process.", e);
-        }
-        return offset;
-    }
-
-    private void cleanExpireMsg() {
-        for (final Map.Entry<MessageQueue, ProcessQueue> next : rebalanceImpl.getProcessQueueTable().entrySet()) {
-            ProcessQueue pq = next.getValue();
-            MessageQueue mq = next.getKey();
-            ReadWriteLock lockTreeMap = getLockInProcessQueue(pq);
-            if (lockTreeMap == null) {
-                log.error("Gets tree map lock in process queue error of message queue:", mq);
-                return;
-            }
-
-            TreeMap<Long, MessageExt> msgTreeMap = pq.getMsgTreeMap();
-
-            int loop = msgTreeMap.size();
-            for (int i = 0; i < loop; i++) {
-                MessageExt msg = null;
-                try {
-                    lockTreeMap.readLock().lockInterruptibly();
-                    try {
-                        if (!msgTreeMap.isEmpty()) {
-                            msg = msgTreeMap.firstEntry().getValue();
-                            if (System.currentTimeMillis() - Long.parseLong(MessageAccessor.getConsumeStartTimeStamp(msg))
-                                > this.defaultLiteMQPullConsumer.getConsumeTimeout() * 60 * 1000) {
-                                //Expired, ack and remove it.
-                            } else {
-                                break;
-                            }
-                        } else {
-                            break;
-                        }
-                    } finally {
-                        lockTreeMap.readLock().unlock();
-                    }
-                } catch (InterruptedException e) {
-                    log.error("Gets expired message exception", e);
-                }
-
-                try {
-                    this.defaultMQPullConsumer.sendMessageBack(msg, 3);
-                    log.info("Send expired msg back. topic={}, msgId={}, storeHost={}, queueId={}, queueOffset={}",
-                        msg.getTopic(), msg.getMsgId(), msg.getStoreHost(), msg.getQueueId(), msg.getQueueOffset());
-                    log.info("Send expired msg back.");
-                    commit(mq, pq, msg);
-                } catch (Exception e) {
-                    log.error("Send back expired msg exception", e);
-                }
-            }
-        }
-    }
-
-    private ReadWriteLock getLockInProcessQueue(ProcessQueue pq) {
-        try {
-            return (ReadWriteLock) FieldUtils.readDeclaredField(pq, "lockTreeMap", true);
-        } catch (IllegalAccessException e) {
-            return null;
-        }
-    }
-
-    public class PullTaskImpl implements Runnable {
-        private final MessageQueue messageQueue;
-        private volatile boolean cancelled = false;
-
-        public PullTaskImpl(final MessageQueue messageQueue) {
-            this.messageQueue = messageQueue;
-        }
-
-        @Override
-        public void run() {
-            String topic = this.messageQueue.getTopic();
-            if (!this.isCancelled()) {
-                if (assignedMessageQueue.isPaused(messageQueue)) {
-                    scheduledThreadPoolExecutor.schedule(this, 1000, TimeUnit.MILLISECONDS);
-                    log.debug("Message Queue: {} has been paused!", messageQueue);
-                    return;
-                }
-                SubscriptionData subscriptionData = rebalanceImpl.getSubscriptionInner().get(topic);
-                long offset = nextPullOffset(messageQueue);
-                long pullDelayTimeMills = 0;
-                try {
-                    PullResult pullResult = pull(messageQueue, subscriptionData.getSubString(), offset, nextPullBatchNums());
-                    ProcessQueue processQueue = rebalanceImpl.getProcessQueueTable().get(messageQueue);
-                    switch (pullResult.getPullStatus()) {
-                        case FOUND:
-                            if (processQueue != null) {
-                                processQueue.putMessage(pullResult.getMsgFoundList());
-                                submitConsumeRequest(new ConsumeRequest(pullResult.getMsgFoundList(), messageQueue, processQueue));
-                            }
-                            break;
-                        default:
-                            break;
-                    }
-                    updatePullOffset(messageQueue, pullResult.getNextBeginOffset());
-                } catch (Throwable e) {
-                    pullDelayTimeMills = 1000;
-                    e.printStackTrace();
-                    log.error("An error occurred in pull message process.", e);
-                }
-
-                if (!this.isCancelled()) {
-                    scheduledThreadPoolExecutor.schedule(this, pullDelayTimeMills, TimeUnit.MILLISECONDS);
-                } else {
-                    log.warn("The Pull Task is cancelled after doPullTask, {}", messageQueue);
-                }
-            }
-        }
-
-        public boolean isCancelled() {
-            return cancelled;
-        }
-
-        public void setCancelled(boolean cancelled) {
-            this.cancelled = cancelled;
-        }
-
-        public MessageQueue getMessageQueue() {
-            return messageQueue;
-        }
-    }
-
-    public class ConsumeRequest {
-        private final List<MessageExt> messageExts;
-        private final MessageQueue messageQueue;
-        private final ProcessQueue processQueue;
-        private long startConsumeTimeMillis;
-
-        public ConsumeRequest(final List<MessageExt> messageExts, final MessageQueue messageQueue,
-            final ProcessQueue processQueue) {
-            this.messageExts = messageExts;
-            this.messageQueue = messageQueue;
-            this.processQueue = processQueue;
-        }
-
-        public List<MessageExt> getMessageExts() {
-            return messageExts;
-        }
-
-        public MessageQueue getMessageQueue() {
-            return messageQueue;
-        }
-
-        public ProcessQueue getProcessQueue() {
-            return processQueue;
-        }
-
-        public long getStartConsumeTimeMillis() {
-            return startConsumeTimeMillis;
-        }
-
-        public void setStartConsumeTimeMillis(final long startConsumeTimeMillis) {
-            this.startConsumeTimeMillis = startConsumeTimeMillis;
-        }
-    }
-}
@@ -433,14 +433,4 @@ public class ProcessQueue {
        this.lastConsumeTimestamp = lastConsumeTimestamp;
    }

-    public long getConsumeOffset() {
-
-        if (msgTreeMap.isEmpty() && queueOffsetMax == 0L)
-            return -1;
-
-        if (!msgTreeMap.isEmpty())
-            return msgTreeMap.firstKey();
-        else
-            return queueOffsetMax + 1;
-    }
 }
@@ -0,0 +1,68 @@
+package org.apache.rocketmq.client.impl.consumer;
+
+import org.apache.rocketmq.client.consumer.AllocateMessageQueueStrategy;
+import org.apache.rocketmq.client.consumer.MessageQueueListener;
+import org.apache.rocketmq.client.impl.factory.MQClientInstance;
+import org.apache.rocketmq.common.message.MessageQueue;
+import org.apache.rocketmq.common.protocol.heartbeat.ConsumeType;
+import org.apache.rocketmq.common.protocol.heartbeat.MessageModel;
+
+import java.util.List;
+import java.util.Set;
+
+public class RebalanceLitePullImpl extends RebalanceImpl  {
+
+    private final DefaultLitePullConsumerImpl litePullConsumerImpl;
+
+    public RebalanceLitePullImpl(DefaultLitePullConsumerImpl litePullConsumerImpl) {
+        this(null, null, null, null, litePullConsumerImpl);
+    }
+
+    public RebalanceLitePullImpl(String consumerGroup, MessageModel messageModel,
+                                 AllocateMessageQueueStrategy allocateMessageQueueStrategy,
+                                 MQClientInstance mQClientFactory, DefaultLitePullConsumerImpl litePullConsumerImpl) {
+        super(consumerGroup, messageModel, allocateMessageQueueStrategy, mQClientFactory);
+        this.litePullConsumerImpl = litePullConsumerImpl;
+    }
+
+    @Override
+    public void messageQueueChanged(String topic, Set<MessageQueue> mqAll, Set<MessageQueue> mqDivided) {
+        MessageQueueListener messageQueueListener = this.litePullConsumerImpl.getDefaultLitePullConsumer().getMessageQueueListener();
+        if (messageQueueListener != null) {
+            try {
+                messageQueueListener.messageQueueChanged(topic, mqAll, mqDivided);
+            } catch (Throwable e) {
+                log.error("messageQueueChanged exception", e);
+            }
+        }
+    }
+
+
+    @Override
+    public boolean removeUnnecessaryMessageQueue(MessageQueue mq, ProcessQueue pq) {
+        this.litePullConsumerImpl.getOffsetStore().persist(mq);
+        this.litePullConsumerImpl.getOffsetStore().removeOffset(mq);
+        return true;
+    }
+
+    @Override
+    public ConsumeType consumeType() {
+        return ConsumeType.CONSUME_ACTIVELY;
+    }
+
+    @Override
+    public void removeDirtyOffset(final MessageQueue mq) {
+        this.litePullConsumerImpl.getOffsetStore().removeOffset(mq);
+    }
+
+    @Override
+    public long computePullFromWhere(MessageQueue mq) {
+        return 0;
+    }
+
+    @Override
+    public void dispatchPullRequest(List<PullRequest> pullRequestList) {
+    }
+
+
+}
@@ -16,34 +16,24 @@
 */
 package org.apache.rocketmq.example.simple;

-import java.util.Arrays;
 import java.util.List;
-import org.apache.rocketmq.client.consumer.DefaultLiteMQPullConsumer;
+import org.apache.rocketmq.client.consumer.DefaultLitePullConsumer;
 import org.apache.rocketmq.common.message.MessageExt;
-import org.apache.rocketmq.common.message.MessageQueue;
+

 public class LitePullConsumerTest {
    public static void main(String[] args) throws Exception {
-        DefaultLiteMQPullConsumer litePullConsumer = new DefaultLiteMQPullConsumer("test", null);
+        DefaultLitePullConsumer litePullConsumer = new DefaultLitePullConsumer("test");
        litePullConsumer.setNamesrvAddr("localhost:9876");
-        litePullConsumer.subscribe("litepullconsumertest9", null);
+        litePullConsumer.setAutoCommit(true);
+        litePullConsumer.subscribe("test41","TagA" );
        litePullConsumer.start();
-        MessageQueue messageQueue = new MessageQueue("test", "IT-C02YW28FLVDL.local", 1);
+
        int i = 0;
        while (true) {
            List<MessageExt> messageExts = litePullConsumer.poll();
            System.out.printf("%s%n", messageExts);
-            i++;
-            if (i == 3) {
-                System.out.printf("pause%n");
-                litePullConsumer.pause(Arrays.asList(messageQueue));
-            }
-            if (i == 10) {
-                System.out.printf("resume%n");
-                litePullConsumer.resume(Arrays.asList(messageQueue));
-            }
-//
-            litePullConsumer.commitSync();
        }
+
    }
 }