pdserving并发问题

[yhgroup]

web_service.py的DetOp中self.raw_im在并发是会出现变量冲突，两个不同图片后面out_dict中的image为同一个内容返回，RecOp的raw_im = input_dict["image"]并发时也会偶尔出现不同图片读取到是同一个内容（DetOp返回的out_dict不同时），不知道什么问题？难道必须加锁才行！配置如下：
build_dag_each_worker: false
dag:
is_thread_op: true
retry: 10
tracer:
interval_s: 10
use_profile: false
......
op:
det:
concurrency: 20
local_service_conf:
client_type: local_predictor
devices: '0'
fetch_list:
- save_infer_model/scale_0.tmp_1
ir_optim: true
model_config: ./inference/ppocr_det_server_2.0_serving
rec:
concurrency: 10
local_service_conf:
client_type: local_predictor
devices: '0'
fetch_list:
- softmax_0.tmp_0
ir_optim: true
model_config: ./inference/rec_serving
retry: 1
timeout: -1
......
worker_num: 10

[SWHL]

Duplicate #15094