diff --git a/agent/src/main/java/io/wdd/agent/executor/config/RedisConfiguration.java b/agent/src/main/java/io/wdd/agent/executor/config/RedisConfiguration.java
index d17dc8d..4d12a86 100644
--- a/agent/src/main/java/io/wdd/agent/executor/config/RedisConfiguration.java
+++ b/agent/src/main/java/io/wdd/agent/executor/config/RedisConfiguration.java
@@ -19,10 +19,12 @@ public class RedisConfiguration {
         redisTemplate.setConnectionFactory(redisConnectionFactory);
 
         GenericJackson2JsonRedisSerializer jsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
+
         redisTemplate.setKeySerializer(RedisSerializer.string());
         redisTemplate.setHashKeySerializer(RedisSerializer.string());
         redisTemplate.setValueSerializer(jsonRedisSerializer);
         redisTemplate.setHashValueSerializer(jsonRedisSerializer);
+
         return redisTemplate;
     }
 }
diff --git a/agent/src/main/java/io/wdd/agent/executor/redis/StreamSender.java b/agent/src/main/java/io/wdd/agent/executor/redis/StreamSender.java
index da2d4f0..9728c22 100644
--- a/agent/src/main/java/io/wdd/agent/executor/redis/StreamSender.java
+++ b/agent/src/main/java/io/wdd/agent/executor/redis/StreamSender.java
@@ -100,7 +100,6 @@ public class StreamSender {
         StreamSenderEntity streamSenderEntity = AllNeededStreamSender.get(streamKey);
         streamSenderEntity.setWaitToSendLog(false);
 
-
         batchSendLog(streamKey);
     }
 
@@ -139,12 +138,11 @@ public class StreamSender {
 
     private boolean send(String streamKey, List<String> content) {
 
-
         try {
 
             String resultContent = objectMapper.writeValueAsString(content);
-            return this.send(streamKey, resultContent);
 
+            return this.send(streamKey, resultContent);
 
         } catch (JsonProcessingException e) {
             throw new RuntimeException(e);
diff --git a/agent/src/main/java/io/wdd/agent/executor/thread/LogToArrayListCache.java b/agent/src/main/java/io/wdd/agent/executor/thread/LogToArrayListCache.java
index ce340b0..a3523a6 100644
--- a/agent/src/main/java/io/wdd/agent/executor/thread/LogToArrayListCache.java
+++ b/agent/src/main/java/io/wdd/agent/executor/thread/LogToArrayListCache.java
@@ -32,7 +32,9 @@ public class LogToArrayListCache {
         ArrayList<String> commandCachedLog = this.getExecutionCmdCachedLogArrayList(streamKey);
 
         String format = String.format("execution command are => [ %s ]", process.info().commandLine().get());
+
         // add the command
+        commandCachedLog.add("");
         commandCachedLog.add(format);
         commandCachedLog.add("--------------- command result are as below --------------------");
         commandCachedLog.add("");