Use connection pool optimization only if size less than 10 connections.

redisson/src/main/java/org/redisson/command/RedisExecutor.java

@@ -505,9 +505,12 @@ public class RedisExecutor<V, R> {
                         connectionType, command, LogHelper.toString(params), source, connection.getRedisClient().getAddr(), connection);
             }
             writeFuture = connection.send(new CommandData<>(attemptPromise, codec, command, params));
+
+            if (connectionManager.getConfig().getMasterConnectionPoolSize() < 10) {
                 release(connection);
             }
         }
+    }
     
     protected void releaseConnection(RPromise<R> attemptPromise, RFuture<RedisConnection> connectionFuture) {
         if (!connectionFuture.isSuccess()) {
@@ -516,9 +519,13 @@ public class RedisExecutor<V, R> {
 
         RedisConnection connection = connectionFuture.getNow();
         connectionManager.getShutdownLatch().release();
+        if (connectionManager.getConfig().getMasterConnectionPoolSize() < 10) {
             if (source.getRedirect() == Redirect.ASK || getClass() != RedisExecutor.class) {
                 release(connection);
             }
+        } else {
+            release(connection);
+        }
 
         if (log.isDebugEnabled()) {
             String connectionType = " ";