diff --git a/src/main/java/com/moilioncircle/redis/replicator/AbstractReplicator.java b/src/main/java/com/moilioncircle/redis/replicator/AbstractReplicator.java
index a24a96b9..fa5372e5 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/AbstractReplicator.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/AbstractReplicator.java
@@ -34,6 +34,7 @@
 public abstract class AbstractReplicator implements Replicator {
     protected RedisInputStream inputStream;
     protected BlockingQueue<Object> eventQueue;
+    protected Configuration configuration;
     protected final ConcurrentHashMap<CommandName, CommandParser<? extends Command>> commands = new ConcurrentHashMap<>();
     protected final List<CommandFilter> filters = new CopyOnWriteArrayList<>();
     protected final List<CommandListener> listeners = new CopyOnWriteArrayList<>();
@@ -140,6 +141,11 @@ public void submitEvent(Object object) throws InterruptedException {
         eventQueue.put(object);
     }
 
+    @Override
+    public boolean verbose() {
+        return configuration == null ? false : configuration.isVerbose();
+    }
+
     @Override
     public void buildInCommandParserRegister() {
         addCommandParser(CommandName.name("PING"), new PingParser());
diff --git a/src/main/java/com/moilioncircle/redis/replicator/Configuration.java b/src/main/java/com/moilioncircle/redis/replicator/Configuration.java
index 9b8442b2..812c75df 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/Configuration.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/Configuration.java
@@ -78,6 +78,11 @@ public static Configuration defaultSetting() {
      */
     private int eventQueueSize = 1000;
 
+    /**
+     * trace event log
+     */
+    private boolean verbose = false;
+
     /**
      * psync master run id
      */
@@ -191,4 +196,31 @@ public Configuration setEventQueueSize(int eventQueueSize) {
         this.eventQueueSize = eventQueueSize;
         return this;
     }
+
+    public boolean isVerbose() {
+        return verbose;
+    }
+
+    public Configuration setVerbose(boolean verbose) {
+        this.verbose = verbose;
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        return "Configuration{" +
+                "connectionTimeout=" + connectionTimeout +
+                ", readTimeout=" + readTimeout +
+                ", receiveBufferSize=" + receiveBufferSize +
+                ", sendBufferSize=" + sendBufferSize +
+                ", retries=" + retries +
+                ", bufferSize=" + bufferSize +
+                ", authPassword='" + authPassword + '\'' +
+                ", discardRdbEvent=" + discardRdbEvent +
+                ", eventQueueSize=" + eventQueueSize +
+                ", verbose=" + verbose +
+                ", masterRunId='" + masterRunId + '\'' +
+                ", offset=" + offset +
+                '}';
+    }
 }
diff --git a/src/main/java/com/moilioncircle/redis/replicator/RedisFileReplicator.java b/src/main/java/com/moilioncircle/redis/replicator/RedisFileReplicator.java
index 844117a0..310bbe5d 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/RedisFileReplicator.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/RedisFileReplicator.java
@@ -32,8 +32,9 @@ public RedisFileReplicator(File file, Configuration configuration) throws FileNo
     }
 
     public RedisFileReplicator(InputStream in, Configuration configuration) {
-        this.inputStream = new RedisInputStream(in, configuration.getBufferSize());
-        this.eventQueue = new ArrayBlockingQueue<>(configuration.getEventQueueSize());
+        this.configuration = configuration;
+        this.inputStream = new RedisInputStream(in, this.configuration.getBufferSize());
+        this.eventQueue = new ArrayBlockingQueue<>(this.configuration.getEventQueueSize());
     }
 
     @Override
diff --git a/src/main/java/com/moilioncircle/redis/replicator/RedisReplicator.java b/src/main/java/com/moilioncircle/redis/replicator/RedisReplicator.java
index 92196567..72edfa69 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/RedisReplicator.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/RedisReplicator.java
@@ -134,6 +134,11 @@ public void submitEvent(Object object) throws InterruptedException {
         replicator.submitEvent(object);
     }
 
+    @Override
+    public boolean verbose() {
+        return replicator.verbose();
+    }
+
     @Override
     public void open() throws IOException {
         replicator.open();
diff --git a/src/main/java/com/moilioncircle/redis/replicator/RedisSocketReplicator.java b/src/main/java/com/moilioncircle/redis/replicator/RedisSocketReplicator.java
index c2f17230..93af69b3 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/RedisSocketReplicator.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/RedisSocketReplicator.java
@@ -46,7 +46,6 @@ class RedisSocketReplicator extends AbstractReplicator {
 
     private final String host;
     private final int port;
-    private final Configuration configuration;
     private RedisOutputStream outputStream;
     private Socket socket;
     private ReplyParser replyParser;
@@ -115,7 +114,8 @@ public void handle(long len) {
                     });
                     //command
                     if (obj instanceof Object[]) {
-                        if (logger.isDebugEnabled()) logger.debug(Arrays.deepToString((Object[]) obj));
+                        if (configuration.isVerbose() && logger.isDebugEnabled())
+                            logger.debug(Arrays.deepToString((Object[]) obj));
 
                         Object[] command = (Object[]) obj;
                         CommandName cmdName = CommandName.name((String) command[0]);
@@ -130,7 +130,7 @@ public void handle(long len) {
                         Command parsedCommand = operations.parse(cmdName, params);
 
                         //submit event
-                        this.eventQueue.put(parsedCommand);
+                        this.submitEvent(parsedCommand);
                     } else {
                         if (logger.isInfoEnabled()) logger.info("Redis reply:" + obj);
                     }
@@ -183,7 +183,7 @@ private void parseDump(final AbstractReplicator replicator) throws IOException {
         String reply = (String) replyParser.parse(new BulkReplyHandler() {
             @Override
             public String handle(long len, RedisInputStream in) throws IOException {
-                if (logger.isDebugEnabled()) logger.debug("RDB dump file size:" + len);
+                logger.info("RDB dump file size:" + len);
                 if (configuration.isDiscardRdbEvent()) {
                     logger.info("Discard " + len + " bytes");
                     in.skip(len);
@@ -195,7 +195,8 @@ public String handle(long len, RedisInputStream in) throws IOException {
             }
         });
         //sync command
-        if (!reply.equals("OK")) throw new AssertionError("SYNC failed." + reply);
+        if (reply.equals("OK")) return;
+        throw new AssertionError("SYNC failed." + reply);
     }
 
     private void auth(String password) throws IOException {
@@ -305,7 +306,7 @@ public void close() throws IOException {
             heartBeat.cancel();
             heartBeat = null;
         }
-        if (logger.isInfoEnabled()) logger.info("channel closed");
+        logger.info("channel closed");
     }
 
     private enum SyncMode {SYNC, PSYNC}
diff --git a/src/main/java/com/moilioncircle/redis/replicator/Replicator.java b/src/main/java/com/moilioncircle/redis/replicator/Replicator.java
index edea950f..d5ed6e42 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/Replicator.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/Replicator.java
@@ -65,5 +65,7 @@ public interface Replicator extends Closeable {
 
     void submitEvent(Object object) throws InterruptedException;
 
+    boolean verbose();
+
     void open() throws IOException;
 }
diff --git a/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb6Parser.java b/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb6Parser.java
index 1c25514f..9f8b5e05 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb6Parser.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb6Parser.java
@@ -109,7 +109,7 @@ protected long rdbLoad() throws IOException, InterruptedException {
                     throw new AssertionError("Un-except value-type:" + type);
             }
             if (kv == null) continue;
-            if (logger.isDebugEnabled()) logger.debug(kv);
+            if (replicator.verbose() && logger.isDebugEnabled()) logger.debug(kv);
             //submit event
             this.replicator.submitEvent(kv);
         }
diff --git a/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb7Parser.java b/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb7Parser.java
index ffb062e5..ce758446 100644
--- a/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb7Parser.java
+++ b/src/main/java/com/moilioncircle/redis/replicator/rdb/Rdb7Parser.java
@@ -125,7 +125,7 @@ protected long rdbLoad() throws IOException, InterruptedException {
                     throw new AssertionError("Un-except value-type:" + type);
             }
             if (kv == null) continue;
-            if (logger.isDebugEnabled()) logger.debug(kv);
+            if (replicator.verbose() && logger.isDebugEnabled()) logger.debug(kv);
             //submit event
             this.replicator.submitEvent(kv);
         }