diff --git a/redisson/src/main/java/org/redisson/RedissonExecutorService.java b/redisson/src/main/java/org/redisson/RedissonExecutorService.java
index 42f064a4b..68e2a57b6 100644
--- a/redisson/src/main/java/org/redisson/RedissonExecutorService.java
+++ b/redisson/src/main/java/org/redisson/RedissonExecutorService.java
@@ -172,7 +172,7 @@ public class RedissonExecutorService implements RScheduledExecutorService {
         tasksCounterName = objectName + ":counter";
         tasksName = objectName + ":tasks";
         statusName = objectName + ":status";
-        terminationTopic = redisson.getTopic(objectName + ":termination-topic", codec);
+        terminationTopic = redisson.getTopic(objectName + ":termination-topic", LongCodec.INSTANCE);
 
         tasksRetryIntervalName = objectName + ":retry-interval";
         schedulerChannelName = objectName + ":scheduler-channel";
@@ -539,15 +539,15 @@ public class RedissonExecutorService implements RScheduledExecutorService {
         }
         
         final CountDownLatch latch = new CountDownLatch(1);
-        MessageListener<Integer> listener = new MessageListener<Integer>() {
+        MessageListener<Long> listener = new MessageListener<Long>() {
             @Override
-            public void onMessage(CharSequence channel, Integer msg) {
+            public void onMessage(CharSequence channel, Long msg) {
                 if (msg == TERMINATED_STATE) {
                     latch.countDown();
                 }
             }
         };
-        int listenerId = terminationTopic.addListener(Integer.class, listener);
+        int listenerId = terminationTopic.addListener(Long.class, listener);
 
         if (isTerminated()) {
             terminationTopic.removeListener(listenerId);
diff --git a/redisson/src/main/java/org/redisson/config/Config.java b/redisson/src/main/java/org/redisson/config/Config.java
index fa648c725..af8e505b0 100644
--- a/redisson/src/main/java/org/redisson/config/Config.java
+++ b/redisson/src/main/java/org/redisson/config/Config.java
@@ -24,6 +24,7 @@ import java.util.concurrent.ExecutorService;
 
 import org.redisson.client.codec.Codec;
 import org.redisson.codec.DefaultReferenceCodecProvider;
+import org.redisson.codec.FstCodec;
 import org.redisson.codec.JsonJacksonCodec;
 import org.redisson.codec.ReferenceCodecProvider;
 import org.redisson.connection.ConnectionManager;
@@ -111,6 +112,7 @@ public class Config {
         if (oldConf.getCodec() == null) {
             // use it by default
             oldConf.setCodec(new JsonJacksonCodec());
+//            oldConf.setCodec(new FstCodec());
         }
 
         setUseScriptCache(oldConf.isUseScriptCache());
diff --git a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
index 0a4a72f7c..158d9576d 100755
--- a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
+++ b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
@@ -135,6 +135,7 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
                     String port = map.get("port");
 
                     String host = createAddress(ip, port);
+                    log.info("sentinel: {} added", host);
                     URI sentinelAddr = URIBuilder.create(host);
                     RFuture<Void> future = registerSentinel(sentinelAddr, this.config);
                     connectionFutures.add(future);
diff --git a/redisson/src/main/java/org/redisson/spring/session/RedissonSessionRepository.java b/redisson/src/main/java/org/redisson/spring/session/RedissonSessionRepository.java
index 91e7852d5..d22c7d6c7 100644
--- a/redisson/src/main/java/org/redisson/spring/session/RedissonSessionRepository.java
+++ b/redisson/src/main/java/org/redisson/spring/session/RedissonSessionRepository.java
@@ -259,7 +259,7 @@ public class RedissonSessionRepository implements FindByIndexNameSessionReposito
             }
             
             String id = body.split(":")[1];
-            RedissonSession session = new RedissonSession(id);
+            RedissonSession session = new RedissonSession(keyPrefix, id);
             if (session.load()) {
                 session.clearPrincipal();
             }
@@ -270,7 +270,7 @@ public class RedissonSessionRepository implements FindByIndexNameSessionReposito
             }
 
             String id = body.split(":")[1];
-            RedissonSession session = new RedissonSession(id);
+            RedissonSession session = new RedissonSession(keyPrefix, id);
             if (session.load()) {
                 session.clearPrincipal();
             }
@@ -306,7 +306,7 @@ public class RedissonSessionRepository implements FindByIndexNameSessionReposito
 
     @Override
     public RedissonSession findById(String id) {
-        RedissonSession session = new RedissonSession(id);
+        RedissonSession session = new RedissonSession(keyPrefix, id);
         if (!session.load() || session.isExpired()) {
             return null;
         }
diff --git a/redisson/src/test/java/org/redisson/RedissonBucketTest.java b/redisson/src/test/java/org/redisson/RedissonBucketTest.java
index e05bd296c..2691a4d87 100755
--- a/redisson/src/test/java/org/redisson/RedissonBucketTest.java
+++ b/redisson/src/test/java/org/redisson/RedissonBucketTest.java
@@ -21,7 +21,7 @@ public class RedissonBucketTest extends BaseTest {
     public void testSizeInMemory() {
         RBucket<Integer> al = redisson.getBucket("test");
         al.set(1234);
-        assertThat(al.sizeInMemory()).isEqualTo(49);
+        assertThat(al.sizeInMemory()).isEqualTo(55);
     }
     
     @Test
diff --git a/redisson/src/test/java/org/redisson/RedissonFairLockTest.java b/redisson/src/test/java/org/redisson/RedissonFairLockTest.java
index 4d3451272..e4562179e 100644
--- a/redisson/src/test/java/org/redisson/RedissonFairLockTest.java
+++ b/redisson/src/test/java/org/redisson/RedissonFairLockTest.java
@@ -19,6 +19,7 @@ import org.junit.Assert;
 import org.junit.Test;
 import org.redisson.api.RLock;
 import org.redisson.api.RScript;
+import org.redisson.client.codec.LongCodec;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -96,7 +97,7 @@ public class RedissonFairLockTest extends BaseConcurrentTest {
             Assert.fail("Lock should have been unlocked by now");
         }
         //check the timeout scores - they should all be within a reasonable amount of time from now
-        List<Long> queue = redisson.getScript().eval(RScript.Mode.READ_ONLY,
+        List<Long> queue = redisson.getScript(LongCodec.INSTANCE).eval(RScript.Mode.READ_ONLY,
                 "local result = {}; " +
                         "local timeouts = redis.call('zrange', KEYS[1], 0, 99, 'WITHSCORES'); " +
                         "for i=1,#timeouts,2 do " +
diff --git a/redisson/src/test/java/org/redisson/RedissonScriptTest.java b/redisson/src/test/java/org/redisson/RedissonScriptTest.java
index 7ee416ceb..e6aa344d1 100644
--- a/redisson/src/test/java/org/redisson/RedissonScriptTest.java
+++ b/redisson/src/test/java/org/redisson/RedissonScriptTest.java
@@ -52,16 +52,16 @@ public class RedissonScriptTest extends BaseTest {
     
     @Test
     public void testEval() {
-        RScript script = redisson.getScript();
-        List<Object> res = script.eval(RScript.Mode.READ_ONLY, "return {1,2,3.3333,'\"foo\"',nil,'bar'}", RScript.ReturnType.MULTI, Collections.emptyList());
-        assertThat(res).containsExactly(1L, 2L, 3L, "foo");
+        RScript script = redisson.getScript(StringCodec.INSTANCE);
+        List<Object> res = script.eval(RScript.Mode.READ_ONLY, "return {'1','2','3.3333','foo',nil,'bar'}", RScript.ReturnType.MULTI, Collections.emptyList());
+        assertThat(res).containsExactly("1", "2", "3.3333", "foo");
     }
 
     @Test
     public void testEvalAsync() {
-        RScript script = redisson.getScript();
-        RFuture<List<Object>> res = script.evalAsync(RScript.Mode.READ_ONLY, "return {1,2,3.3333,'\"foo\"',nil,'bar'}", RScript.ReturnType.MULTI, Collections.emptyList());
-        assertThat(res.awaitUninterruptibly().getNow()).containsExactly(1L, 2L, 3L, "foo");
+        RScript script = redisson.getScript(StringCodec.INSTANCE);
+        RFuture<List<Object>> res = script.evalAsync(RScript.Mode.READ_ONLY, "return {'1','2','3.3333','foo',nil,'bar'}", RScript.ReturnType.MULTI, Collections.emptyList());
+        assertThat(res.awaitUninterruptibly().getNow()).containsExactly("1", "2", "3.3333", "foo");
     }
     
     @Test
diff --git a/redisson/src/test/java/org/redisson/executor/CallableTask.java b/redisson/src/test/java/org/redisson/executor/CallableTask.java
index aef9dc3ae..63c053cbc 100644
--- a/redisson/src/test/java/org/redisson/executor/CallableTask.java
+++ b/redisson/src/test/java/org/redisson/executor/CallableTask.java
@@ -1,8 +1,9 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
 import java.util.concurrent.Callable;
 
-public class CallableTask implements Callable<String> {
+public class CallableTask implements Callable<String>, Serializable {
 
     public static final String RESULT = "callable";
     
diff --git a/redisson/src/test/java/org/redisson/executor/DelayedTask.java b/redisson/src/test/java/org/redisson/executor/DelayedTask.java
index dd4ae4b08..b657ebe9f 100644
--- a/redisson/src/test/java/org/redisson/executor/DelayedTask.java
+++ b/redisson/src/test/java/org/redisson/executor/DelayedTask.java
@@ -1,12 +1,13 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
 import java.util.concurrent.Callable;
 
 import org.redisson.api.RAtomicLong;
 import org.redisson.api.RedissonClient;
 import org.redisson.api.annotation.RInject;
 
-public class DelayedTask implements Callable<Object> {
+public class DelayedTask implements Callable<Object>, Serializable {
 
     @RInject
     private RedissonClient redisson;
diff --git a/redisson/src/test/java/org/redisson/executor/IncrementCallableTask.java b/redisson/src/test/java/org/redisson/executor/IncrementCallableTask.java
index 268c14eae..19e171e76 100644
--- a/redisson/src/test/java/org/redisson/executor/IncrementCallableTask.java
+++ b/redisson/src/test/java/org/redisson/executor/IncrementCallableTask.java
@@ -1,11 +1,12 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
 import java.util.concurrent.Callable;
 
 import org.redisson.api.RedissonClient;
 import org.redisson.api.annotation.RInject;
 
-public class IncrementCallableTask implements Callable<String> {
+public class IncrementCallableTask implements Callable<String>, Serializable {
 
     private String counterName;
     
diff --git a/redisson/src/test/java/org/redisson/executor/IncrementRunnableTask.java b/redisson/src/test/java/org/redisson/executor/IncrementRunnableTask.java
index 2469b068e..6bfb213fc 100644
--- a/redisson/src/test/java/org/redisson/executor/IncrementRunnableTask.java
+++ b/redisson/src/test/java/org/redisson/executor/IncrementRunnableTask.java
@@ -1,9 +1,11 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
+
 import org.redisson.api.RedissonClient;
 import org.redisson.api.annotation.RInject;
 
-public class IncrementRunnableTask implements Runnable {
+public class IncrementRunnableTask implements Runnable, Serializable {
 
     private String counterName;
     
diff --git a/redisson/src/test/java/org/redisson/executor/ParameterizedTask.java b/redisson/src/test/java/org/redisson/executor/ParameterizedTask.java
index 80ff7ea53..01da1fc27 100644
--- a/redisson/src/test/java/org/redisson/executor/ParameterizedTask.java
+++ b/redisson/src/test/java/org/redisson/executor/ParameterizedTask.java
@@ -1,8 +1,9 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
 import java.util.concurrent.Callable;
 
-public class ParameterizedTask implements Callable<String> {
+public class ParameterizedTask implements Callable<String>, Serializable {
 
     private String param;
     
diff --git a/redisson/src/test/java/org/redisson/executor/RedissonExecutorServiceTest.java b/redisson/src/test/java/org/redisson/executor/RedissonExecutorServiceTest.java
index 41961c4d6..b4141d5cd 100644
--- a/redisson/src/test/java/org/redisson/executor/RedissonExecutorServiceTest.java
+++ b/redisson/src/test/java/org/redisson/executor/RedissonExecutorServiceTest.java
@@ -4,6 +4,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 import static org.awaitility.Awaitility.await;
 
 import java.io.IOException;
+import java.io.Serializable;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
@@ -515,7 +516,7 @@ public class RedissonExecutorServiceTest extends BaseTest {
         redisson.getExecutorService("test").submit(new TaskCallableClass());
     }
 
-    public static class TaskStaticCallableClass implements Callable<String> {
+    public static class TaskStaticCallableClass implements Callable<String>, Serializable {
 
         @Override
         public String call() throws Exception {
@@ -530,7 +531,7 @@ public class RedissonExecutorServiceTest extends BaseTest {
         assertThat(res).isEqualTo("123");
     }
     
-    public class TaskRunnableClass implements Runnable {
+    public class TaskRunnableClass implements Runnable, Serializable {
 
         @Override
         public void run() {
@@ -543,7 +544,7 @@ public class RedissonExecutorServiceTest extends BaseTest {
         redisson.getExecutorService("test").submit(new TaskRunnableClass());
     }
 
-    public static class TaskStaticRunnableClass implements Runnable {
+    public static class TaskStaticRunnableClass implements Runnable, Serializable {
 
         @Override
         public void run() {
diff --git a/redisson/src/test/java/org/redisson/executor/RunnableRedissonTask.java b/redisson/src/test/java/org/redisson/executor/RunnableRedissonTask.java
index 998f87fbb..9c0c28b84 100644
--- a/redisson/src/test/java/org/redisson/executor/RunnableRedissonTask.java
+++ b/redisson/src/test/java/org/redisson/executor/RunnableRedissonTask.java
@@ -1,9 +1,11 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
+
 import org.redisson.api.RedissonClient;
 import org.redisson.api.annotation.RInject;
 
-public class RunnableRedissonTask implements Runnable {
+public class RunnableRedissonTask implements Runnable, Serializable {
 
     @RInject
     private RedissonClient redissonClient;
diff --git a/redisson/src/test/java/org/redisson/executor/RunnableTask.java b/redisson/src/test/java/org/redisson/executor/RunnableTask.java
index a15683e9b..f05b221a8 100644
--- a/redisson/src/test/java/org/redisson/executor/RunnableTask.java
+++ b/redisson/src/test/java/org/redisson/executor/RunnableTask.java
@@ -1,6 +1,8 @@
 package org.redisson.executor;
 
-public class RunnableTask implements Runnable {
+import java.io.Serializable;
+
+public class RunnableTask implements Runnable, Serializable {
 
     @Override
     public void run() {
diff --git a/redisson/src/test/java/org/redisson/executor/RunnableTask2.java b/redisson/src/test/java/org/redisson/executor/RunnableTask2.java
index ceb0eb444..16a692161 100644
--- a/redisson/src/test/java/org/redisson/executor/RunnableTask2.java
+++ b/redisson/src/test/java/org/redisson/executor/RunnableTask2.java
@@ -2,7 +2,7 @@ package org.redisson.executor;
 
 import java.io.Serializable;
 
-public class RunnableTask2 implements Runnable {
+public class RunnableTask2 implements Runnable, Serializable {
 
     private static final long serialVersionUID = 2105094575950438867L;
     
diff --git a/redisson/src/test/java/org/redisson/executor/ScheduledLongRunnableTask.java b/redisson/src/test/java/org/redisson/executor/ScheduledLongRunnableTask.java
index 1f98f14c0..28b7bd6c5 100644
--- a/redisson/src/test/java/org/redisson/executor/ScheduledLongRunnableTask.java
+++ b/redisson/src/test/java/org/redisson/executor/ScheduledLongRunnableTask.java
@@ -1,9 +1,11 @@
 package org.redisson.executor;
 
+import java.io.Serializable;
+
 import org.redisson.api.RedissonClient;
 import org.redisson.api.annotation.RInject;
 
-public class ScheduledLongRunnableTask implements Runnable {
+public class ScheduledLongRunnableTask implements Runnable, Serializable {
 
     @RInject
     private RedissonClient redisson;