diff --git a/README.md b/README.md
new file mode 100644
index 0000000..301a37b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+combo_field_storage_thread
+==========================
+
+With Drupal combo_field_storage module, we can write mongoDB enabled field storage to both MySQL and MongoDB, but the write speed of MySQl is slow. Here we make a non-blocking approach to support this feature.
+
+
+Installation
+==========================
+Install mongodb module
+Install httprl module
+Install this module and done
+
+
+
+Issue queue in drupal.org
+==========================
+https://drupal.org/node/2140647
diff --git a/combo_field_storage.info b/combo_field_storage.info
index f59716a..27cdee1 100644
--- a/combo_field_storage.info
+++ b/combo_field_storage.info
@@ -4,6 +4,7 @@ package = Combo
 version = VERSION
 core = 7.x
 dependencies[] = mongodb_field_storage
+dependencies[] = httprl
 files[] = combo_field_storage.module
 files[] = combo_field_storage.test
 
diff --git a/combo_field_storage.module b/combo_field_storage.module
index 5eab544..358899d 100644
--- a/combo_field_storage.module
+++ b/combo_field_storage.module
@@ -94,8 +94,28 @@ function combo_field_storage_field_storage_load($entity_type, $entities, $age, $
  */
 function combo_field_storage_field_storage_write($entity_type, $entity, $op, $fields, $entity_write = FALSE) {
   // Write to both MongoDB and the SQL database
-  mongodb_field_storage_field_storage_write($entity_type, $entity, $op, $fields, $entity_write);
-  field_sql_storage_field_storage_write($entity_type, $entity, $op, $fields);
+  //mongodb_field_storage_field_storage_write($entity_type, $entity, $op, $fields, $entity_write);
+  //field_sql_storage_field_storage_write($entity_type, $entity, $op, $fields);
+
+  $args = array(
+    array(
+      'type' => 'function',
+      'call' => 'mongodb_field_storage_field_storage_write',
+      'args' => array($entity_type, $entity, $op, $fields, $entity_write),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'field_sql_storage_field_storage_write',
+      'args' => array($entity_type, $entity, $op, $fields),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'watchdog',
+      'args' => array('combo_field_storage_thread-httprl', 'non-dual insert done', array(), WATCHDOG_DEBUG),
+    ),
+  );
+  
+  combo_field_storage_nonblock($args);
 }
 
 
@@ -106,8 +126,28 @@ function combo_field_storage_field_storage_write($entity_type, $entity, $op, $fi
  */
 function combo_field_storage_field_storage_delete($entity_type, $entity, $fields) {
   // Delete from both MongoDB and the SQL database
-  mongodb_field_storage_field_storage_delete($entity_type, $entity, $fields);
-  field_sql_storage_field_storage_delete($entity_type, $entity, $fields);
+  //mongodb_field_storage_field_storage_delete($entity_type, $entity, $fields);
+  //field_sql_storage_field_storage_delete($entity_type, $entity, $fields);
+
+  $args = array(
+    array(
+      'type' => 'function',
+      'call' => 'mongodb_field_storage_field_storage_delete',
+      'args' => array($entity_type, $entity, $fields),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'field_sql_storage_field_storage_delete',
+      'args' => array($entity_type, $entity, $fields),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'watchdog',
+      'args' => array('combo_field_storage_thread-httprl', 'non-dual delete done', array(), WATCHDOG_DEBUG),
+    ),
+  );
+  
+  combo_field_storage_nonblock($args);
 }
 
 /**
@@ -117,8 +157,28 @@ function combo_field_storage_field_storage_delete($entity_type, $entity, $fields
  */
 function combo_field_storage_field_storage_delete_revision($entity_type, $entity, $fields) {
   // Delete from both MongoDB and the SQL database
-  mongodb_field_storage_field_storage_delete_revision($entity_type, $entity, $fields);
-  field_sql_storage_field_storage_delete_revision($entity_type, $entity, $fields);
+  //mongodb_field_storage_field_storage_delete_revision($entity_type, $entity, $fields);
+  //field_sql_storage_field_storage_delete_revision($entity_type, $entity, $fields);
+
+  $args = array(
+    array(
+      'type' => 'function',
+      'call' => 'mongodb_field_storage_field_storage_delete_revision',
+      'args' => array($entity_type, $entity, $fields),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'field_sql_storage_field_storage_delete_revision',
+      'args' => array($entity_type, $entity, $fields),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'watchdog',
+      'args' => array('combo_field_storage_thread-httprl', 'non-dual delete revision done', array(), WATCHDOG_DEBUG),
+    ),
+  );
+  
+  combo_field_storage_nonblock($args);
 }
 
 /**
@@ -128,8 +188,28 @@ function combo_field_storage_field_storage_delete_revision($entity_type, $entity
  */
 function combo_field_storage_field_storage_delete_instance($instance) {
   // Delete from both MongoDB and the SQL database
-  mongodb_field_storage_field_storage_delete_instance($instance);
-  field_sql_storage_field_storage_delete_instance($instance);
+  //mongodb_field_storage_field_storage_delete_instance($instance);
+  //field_sql_storage_field_storage_delete_instance($instance);
+
+  $args = array(
+    array(
+      'type' => 'function',
+      'call' => 'mongodb_field_storage_field_storage_delete_instance',
+      'args' => array($instance),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'field_sql_storage_field_storage_delete_instance',
+      'args' => array($instance),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'watchdog',
+      'args' => array('combo_field_storage_thread-httprl', 'non-dual delete instance done', array(), WATCHDOG_DEBUG),
+    ),
+  );
+  
+  combo_field_storage_nonblock($args);
 }
 
 /**
@@ -156,8 +236,27 @@ function combo_field_storage_query($query) {
  */
 function combo_field_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new) {
   // Let MongoDB and the SQL database act on a bundle rename
-  mongodb_combo_field_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new);
-  field_sql_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new);
+  //mongodb_combo_field_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new);
+  //field_sql_storage_field_attach_rename_bundle($entity_type, $bundle_old, $bundle_new);
+  $args = array(
+    array(
+      'type' => 'function',
+      'call' => 'mongodb_combo_field_storage_field_attach_rename_bundle',
+      'args' => array($entity_type, $bundle_old, $bundle_new),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'field_sql_storage_field_attach_rename_bundle',
+      'args' => array($entity_type, $bundle_old, $bundle_new),
+    ),
+    array(
+      'type' => 'function',
+      'call' => 'watchdog',
+      'args' => array('combo_field_storage_thread-httprl', 'non-dual rename bundle done', array(), WATCHDOG_DEBUG),
+    ),
+  );
+  
+  combo_field_storage_nonblock($args);
 }
 
 /**
@@ -168,3 +267,28 @@ function combo_field_storage_field_attach_delete($entity_type, $entity) {
   mongodb_field_storage_field_attach_delete($entity_type, $entity);
 }
 
+/**
+ * Helper function for httprl non-blocking
+ */
+function combo_field_storage_nonblock($args) {
+
+  // Bail out here if background callbacks are disabled.
+  if (!httprl_is_background_callback_capable()) {
+    return FALSE;
+  }
+  
+  // Pass the current session to the sub request.
+  if (!empty($_COOKIE[session_name()])) {
+    $options = array('headers' => array('Cookie' => session_name() . '=' . $_COOKIE[session_name()] . ';'));
+  }
+  else {
+    $options = array();
+  }
+  $callback_options = array(array('options' => $options), &$args);
+  
+  // Queue up the request.
+  httprl_queue_background_callback($callback_options);
+  // Execute request.
+  httprl_send_request();
+
+}