diff --git a/cmake/paddlepaddle.cmake b/cmake/paddlepaddle.cmake
index 3119c62f85a9f3616136fd0448811d76163f1195..0774db92b5a9132ef22bea8271bbfa0eb8ab57b5 100644
--- a/cmake/paddlepaddle.cmake
+++ b/cmake/paddlepaddle.cmake
@@ -30,7 +30,7 @@ message( "WITH_GPU = ${WITH_GPU}")
 # Paddle Version should be one of:
 # latest: latest develop build
 # version number like 1.5.2
-SET(PADDLE_VERSION "2.2.0")
+SET(PADDLE_VERSION "2.2.2")
 if (WITH_GPU)
     message("CUDA: ${CUDA_VERSION}, CUDNN_MAJOR_VERSION: ${CUDNN_MAJOR_VERSION}")
     # cuda 11.0 is not supported, 11.2 would be added.
@@ -58,9 +58,9 @@ elseif (WITH_LITE)
     message("cpu arch: ${CMAKE_SYSTEM_PROCESSOR}")
     if (WITH_XPU)
         if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
-            SET(PADDLE_LIB_VERSION "x86-64_gcc8.2_avx_mkl")
+            SET(PADDLE_LIB_VERSION "${PADDLE_VERSION}/cxx_c/Linux/XPU/x86-64_gcc8.2_py36_avx_mkl")
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
-            SET(PADDLE_LIB_VERSION "arm64_gcc7.3_openblas")
+            SET(PADDLE_LIB_VERSION "${PADDLE_VERSION}/cxx_c/Linux/XPU/arm64_gcc7.3_py36_openblas")
         endif()
     elseif (WITH_ASCEND_CL)
         if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
@@ -97,7 +97,7 @@ endif()
 
 if(WITH_LITE)
     if (WITH_XPU)
-        SET(PADDLE_LIB_PATH "https://paddle-inference-lib.bj.bcebos.com/2.2.0-rc0/cxx_c/Linux/XPU/${PADDLE_LIB_VERSION}/paddle_inference_install_dir.tar.gz ")
+        SET(PADDLE_LIB_PATH "https://paddle-inference-lib.bj.bcebos.com/${PADDLE_LIB_VERSION}/paddle_inference_install_dir.tar.gz ")
     elseif (WITH_ASCEND_CL)
         SET(PADDLE_LIB_PATH "http://paddle-serving.bj.bcebos.com/inferlib/${PADDLE_LIB_VERSION}/paddle_inference_install_dir.tgz ")
     endif()
diff --git a/python/paddle_serving_app/local_predict.py b/python/paddle_serving_app/local_predict.py
index 9081b8b3974e5590732f07eb7d867cd3c48c4191..5f922a28f849866fcd08a29b63c70a986d064c68 100644
--- a/python/paddle_serving_app/local_predict.py
+++ b/python/paddle_serving_app/local_predict.py
@@ -160,12 +160,12 @@ class LocalPredictor(object):
             "use_trt:{}, use_lite:{}, use_xpu:{}, precision:{}, use_calib:{}, "
             "use_mkldnn:{}, mkldnn_cache_capacity:{}, mkldnn_op_list:{}, "
             "mkldnn_bf16_op_list:{}, use_feed_fetch_ops:{}, "
-            "use_ascend_cl:{}, min_subgraph_size:{}, dynamic_shape_info:{}".format(
-                model_path, use_gpu, gpu_id, use_profile, thread_num, mem_optim,
-                ir_optim, use_trt, use_lite, use_xpu, precision, use_calib,
-                use_mkldnn, mkldnn_cache_capacity, mkldnn_op_list,
-                mkldnn_bf16_op_list, use_feed_fetch_ops, use_ascend_cl,
-                min_subgraph_size, dynamic_shape_info))
+            "use_ascend_cl:{}, min_subgraph_size:{}, dynamic_shape_info:{}".
+            format(model_path, use_gpu, gpu_id, use_profile, thread_num,
+                   mem_optim, ir_optim, use_trt, use_lite, use_xpu, precision,
+                   use_calib, use_mkldnn, mkldnn_cache_capacity, mkldnn_op_list,
+                   mkldnn_bf16_op_list, use_feed_fetch_ops, use_ascend_cl,
+                   min_subgraph_size, dynamic_shape_info))
 
         self.feed_names_ = [var.alias_name for var in model_conf.feed_var]
         self.fetch_names_ = [var.alias_name for var in model_conf.fetch_var]
@@ -236,10 +236,10 @@ class LocalPredictor(object):
                     kill_stop_process_by_pid("kill", os.getpgid(os.getpid()))
 
                 if len(dynamic_shape_info):
-                     config.set_trt_dynamic_shape_info(
-                         dynamic_shape_info['min_input_shape'], 
-                         dynamic_shape_info['max_input_shape'], 
-                         dynamic_shape_info['opt_input_shape'])       
+                    config.set_trt_dynamic_shape_info(
+                        dynamic_shape_info['min_input_shape'],
+                        dynamic_shape_info['max_input_shape'],
+                        dynamic_shape_info['opt_input_shape'])
         # set lite
         if use_lite:
             config.enable_lite_engine(
@@ -338,7 +338,8 @@ class LocalPredictor(object):
         # Assemble the input data of paddle predictor, and filter invalid inputs. 
         input_names = self.predictor.get_input_names()
         for name in input_names:
-            if isinstance(feed[name], list):
+            if isinstance(feed[name], list) and not isinstance(feed[name][0],
+                                                               str):
                 feed[name] = np.array(feed[name]).reshape(self.feed_shapes_[
                     name])
             if self.feed_types_[name] == 0:
@@ -365,6 +366,9 @@ class LocalPredictor(object):
                 feed[name] = feed[name].astype("complex64")
             elif self.feed_types_[name] == 11:
                 feed[name] = feed[name].astype("complex128")
+            elif isinstance(feed[name], list) and isinstance(feed[name][0],
+                                                             str):
+                pass
             else:
                 raise ValueError("local predictor receives wrong data type")
 
diff --git a/python/pipeline/channel.py b/python/pipeline/channel.py
index 9ef1c09c48d4c851faf16c2621a0fa1dc561c201..8df5a6259f8a2b3c7048771c73e7d802b94ba8b7 100644
--- a/python/pipeline/channel.py
+++ b/python/pipeline/channel.py
@@ -34,6 +34,7 @@ from .error_catch import CustomExceptionCode as ChannelDataErrcode
 
 _LOGGER = logging.getLogger(__name__)
 
+
 class ChannelDataType(enum.Enum):
     """
     Channel data type
@@ -167,7 +168,8 @@ class ChannelData(object):
         elif isinstance(npdata, dict):
             # batch_size = 1
             for _, value in npdata.items():
-                if not isinstance(value, np.ndarray):
+                if not isinstance(value, np.ndarray) and not (isinstance(
+                        value, list) and isinstance(value[0], str)):
                     error_code = ChannelDataErrcode.TYPE_ERROR.value
                     error_info = "Failed to check data: the value " \
                             "of data must be np.ndarray, but get {}.".format(