diff --git a/python/examples/pipeline/PaddleClas/DarkNet53/config.yml b/python/examples/pipeline/PaddleClas/DarkNet53/config.yml
index 58eb80c2c6dc08e16c81667bdbea55e2f31dc8d7..19f14e7322e1a04d25ee1bdf931dda7645cd8cc0 100644
--- a/python/examples/pipeline/PaddleClas/DarkNet53/config.yml
+++ b/python/examples/pipeline/PaddleClas/DarkNet53/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: DarkNet53/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/HRNet_W18_C/config.yml b/python/examples/pipeline/PaddleClas/HRNet_W18_C/config.yml
index c02ed38c2df8d5d623839e3d1dd5df274f95e96a..63eb72169f22b1668c63c451ae74715fe5d4f076 100644
--- a/python/examples/pipeline/PaddleClas/HRNet_W18_C/config.yml
+++ b/python/examples/pipeline/PaddleClas/HRNet_W18_C/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: HRNet_W18_C/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/MobileNetV1/config.yml b/python/examples/pipeline/PaddleClas/MobileNetV1/config.yml
index 6be4d209d7fba90ae6f1b0e9e30f044bc0d6dd45..a20d2998748dd11f906a100742e7ee6b8924a083 100644
--- a/python/examples/pipeline/PaddleClas/MobileNetV1/config.yml
+++ b/python/examples/pipeline/PaddleClas/MobileNetV1/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: MobileNetV1/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/MobileNetV2/config.yml b/python/examples/pipeline/PaddleClas/MobileNetV2/config.yml
index 2b229673a8800e5ef2d6c5a5b9c1c107fb2a1041..55c2e06d6ecfafdf822b78890f5f184c872eba2e 100644
--- a/python/examples/pipeline/PaddleClas/MobileNetV2/config.yml
+++ b/python/examples/pipeline/PaddleClas/MobileNetV2/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: MobileNetV2/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/MobileNetV3_large_x1_0/config.yml b/python/examples/pipeline/PaddleClas/MobileNetV3_large_x1_0/config.yml
index c27cccc82278d80bbadd36c1494400c2b4bb249d..f04e1e90994ab7d80598f95e3f8f7a8077fadf84 100644
--- a/python/examples/pipeline/PaddleClas/MobileNetV3_large_x1_0/config.yml
+++ b/python/examples/pipeline/PaddleClas/MobileNetV3_large_x1_0/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 2
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 2
-
             #uci模型路径
             model_config:  MobileNetV3_large_x1_0/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNeXt101_vd_64x4d/config.yml b/python/examples/pipeline/PaddleClas/ResNeXt101_vd_64x4d/config.yml
index df7bb45264a43a6816d081e567b5ee7d9366b54c..0f0facc5d6c799cfef0cd9f9797855684880b958 100644
--- a/python/examples/pipeline/PaddleClas/ResNeXt101_vd_64x4d/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNeXt101_vd_64x4d/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ResNeXt101_vd_64x4d/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNet50_vd/config.yml b/python/examples/pipeline/PaddleClas/ResNet50_vd/config.yml
index f946dc3764a9c84e8efc3df594e4013d56b80c91..104504f41f98654139f5630f350a34ebd3729ba8 100644
--- a/python/examples/pipeline/PaddleClas/ResNet50_vd/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNet50_vd/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ResNet50_vd/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNet50_vd_FPGM/config.yml b/python/examples/pipeline/PaddleClas/ResNet50_vd_FPGM/config.yml
index cc40ee56df90f674fc9fcce2affc4fb06e2f16a1..26087067dfb92dd95e56fb9475cb15350868e89b 100644
--- a/python/examples/pipeline/PaddleClas/ResNet50_vd_FPGM/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNet50_vd_FPGM/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ResNet50_vd_FPGM/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNet50_vd_KL/config.yml b/python/examples/pipeline/PaddleClas/ResNet50_vd_KL/config.yml
index b728e4e2d81d9bbc5ba2c41d7c10ae364c78178d..9ea71c67fcb0cc2ff1caef2970de80758c0729aa 100644
--- a/python/examples/pipeline/PaddleClas/ResNet50_vd_KL/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNet50_vd_KL/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ResNet50_vd_KL/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNet50_vd_PACT/config.yml b/python/examples/pipeline/PaddleClas/ResNet50_vd_PACT/config.yml
index b97581662a49bd04da6b73b11720ac1ebbee07db..22472052cbd9f46b5ed1fce0bb41c834e02597d2 100644
--- a/python/examples/pipeline/PaddleClas/ResNet50_vd_PACT/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNet50_vd_PACT/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ResNet50_vd_PACT/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ResNet_V2_50/config.yml b/python/examples/pipeline/PaddleClas/ResNet_V2_50/config.yml
index d6a1d44af70e1a72dd24461ae2d4bc575a97a160..ead533a4b639aa84e65bc2a78b07aa95eb0075d9 100644
--- a/python/examples/pipeline/PaddleClas/ResNet_V2_50/config.yml
+++ b/python/examples/pipeline/PaddleClas/ResNet_V2_50/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: resnet_v2_50_imagenet_model/
 
diff --git a/python/examples/pipeline/PaddleClas/ShuffleNetV2_x1_0/config.yml b/python/examples/pipeline/PaddleClas/ShuffleNetV2_x1_0/config.yml
index eeea272e66a6aad5a9899f6e4624d2e058fd294f..bdfbff08e48a414297ca375753ce8bb335d4a311 100644
--- a/python/examples/pipeline/PaddleClas/ShuffleNetV2_x1_0/config.yml
+++ b/python/examples/pipeline/PaddleClas/ShuffleNetV2_x1_0/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 1
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 1
-
             #uci模型路径
             model_config: ShuffleNetV2_x1_0/ppcls_model/
 
diff --git a/python/examples/pipeline/PaddleDetection/faster_rcnn/config.yml b/python/examples/pipeline/PaddleDetection/faster_rcnn/config.yml
index 052b82ffd2f34e009fc04277bfb465150b331d22..0bcb6c288914acc852c82974eb7eacf560784255 100644
--- a/python/examples/pipeline/PaddleDetection/faster_rcnn/config.yml
+++ b/python/examples/pipeline/PaddleDetection/faster_rcnn/config.yml
@@ -5,9 +5,10 @@ dag:
 http_port: 18082
 op:
   faster_rcnn:
+    concurrency: 2
+
     local_service_conf:
       client_type: local_predictor
-      concurrency: 2
       device_type: 1
       devices: '2'
       fetch_list:
diff --git a/python/examples/pipeline/PaddleDetection/ppyolo_mbv3/config.yml b/python/examples/pipeline/PaddleDetection/ppyolo_mbv3/config.yml
index abc3e3b0af737b8bcc624ad8d44cb4682aa87a37..0476d4ce6554af31e21d0c2ea0473e23de18523f 100644
--- a/python/examples/pipeline/PaddleDetection/ppyolo_mbv3/config.yml
+++ b/python/examples/pipeline/PaddleDetection/ppyolo_mbv3/config.yml
@@ -5,9 +5,10 @@ dag:
 http_port: 18082
 op:
   ppyolo_mbv3:
+    concurrency: 10
+
     local_service_conf:
       client_type: local_predictor
-      concurrency: 10
       device_type: 1
       devices: '2'
       fetch_list:
diff --git a/python/examples/pipeline/PaddleDetection/yolov3/config.yml b/python/examples/pipeline/PaddleDetection/yolov3/config.yml
index 439746569bc0abe49e00e4508038e9d6f6feb382..20653280736316c87d50786e76db5ba842040525 100644
--- a/python/examples/pipeline/PaddleDetection/yolov3/config.yml
+++ b/python/examples/pipeline/PaddleDetection/yolov3/config.yml
@@ -5,9 +5,10 @@ dag:
 http_port: 18082
 op:
   yolov3:
+    concurrency: 10
+
     local_service_conf:
       client_type: local_predictor
-      concurrency: 10
       device_type: 1
       devices: '2'
       fetch_list:
diff --git a/python/examples/pipeline/bert/config.yml b/python/examples/pipeline/bert/config.yml
index 6896ef5cb774cfeda4582d4542af9c75d5204651..a2b39264dd78ccb8f2936c7bd603d1c3d57b2574 100644
--- a/python/examples/pipeline/bert/config.yml
+++ b/python/examples/pipeline/bert/config.yml
@@ -1,17 +1,17 @@
+worker_num: 20
 dag:
   is_thread_op: false
   tracer:
     interval_s: 10
 http_port: 18082
+rpc_port: 9998
 op:
   bert:
+    concurrency: 2
+
     local_service_conf:
       client_type: local_predictor
-      concurrency: 2
       device_type: 1
       devices: '2'
       fetch_list:
-      - pooled_output
       model_config: bert_seq128_model/
-rpc_port: 9998
-worker_num: 20
diff --git a/python/examples/pipeline/imagenet/config.yml b/python/examples/pipeline/imagenet/config.yml
index 598db3d0c2636dd8199c26e9ace64c5cbb4fde85..600093b32e3747f778c50a51ccebbcd9507c1a20 100644
--- a/python/examples/pipeline/imagenet/config.yml
+++ b/python/examples/pipeline/imagenet/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     imagenet:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 2
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 2
-
             #uci模型路径
             model_config: ResNet50_vd_model
 
diff --git a/python/examples/pipeline/simple_web_service/config.yml b/python/examples/pipeline/simple_web_service/config.yml
index 837687dba4d3506993b0e705747c55da45a49a16..43455bcba397eacf78af018d2c0d2aa53606753b 100644
--- a/python/examples/pipeline/simple_web_service/config.yml
+++ b/python/examples/pipeline/simple_web_service/config.yml
@@ -11,12 +11,12 @@ dag:
     is_thread_op: False
 op:
     uci:
+        #并发数，is_thread_op=True时，为线程并发；否则为进程并发
+        concurrency: 2
+
         #当op配置没有server_endpoints时，从local_service_conf读取本地服务配置
         local_service_conf:
 
-            #并发数，is_thread_op=True时，为线程并发；否则为进程并发
-            concurrency: 2
-
             #uci模型路径
             model_config: uci_housing_model