1

我正在使用nameko构建一个微服务架构的ETL管道,并且我不想在发出RPC请求后等待回复。

from nameko.rpc import rpc, RpcProxy

class Scheduler(object):
  name = "scheduler"

  task_runner = RpcProxy('task_runner')

  @rpc
  def schedule(self, task_type, group_id, time):
     return self.task_runner.start.async(task_type, group_id)

此代码引发错误:

Traceback (most recent call last):
  File "/home/satnam-sandhu/.anaconda3/envs/etl/bin/nameko", line 8, in <module>
    sys.exit(main())
  File "/home/satnam-sandhu/.anaconda3/envs/etl/lib/python3.8/site-packages/nameko/cli/main.py", line 112, in main
    args.main(args)
  File "/home/satnam-sandhu/.anaconda3/envs/etl/lib/python3.8/site-packages/nameko/cli/commands.py", line 110, in main
    main(args)
  File "/home/satnam-sandhu/.anaconda3/envs/etl/lib/python3.8/site-packages/nameko/cli/run.py", line 181, in main
    import_service(path)
  File "/home/satnam-sandhu/.anaconda3/envs/etl/lib/python3.8/site-packages/nameko/cli/run.py", line 46, in import_service
    __import__(module_name)
  File "./scheduler/service.py", line 15
    return self.task_runner.start.async(task_type, group_id)
                                  ^
SyntaxError: invalid syntax

我是微服务和 Nameko 的新手,而且我使用 RabbitMQ 作为排队服务。

4

2 回答 2

1

我有同样的问题; 您需要将方法替换为async方法call_async,并使用 检索数据result()

文档
GitHub 问题

于 2019-12-30T14:03:09.957 回答
0

使用 call_async 代替异步或更好的结果使用事件

从 nameko.events 导入 EventDispatcher, event_handler

@event_handler("service_a", "event_emit_name")
    def get_result(self, payload):
      #do_something...

和其他服务

from nameko.events import EventDispatcher, event_handler
@event_handler("service_a", "event_emit_name")
    def return_result(self, payload):
       #get payload and work over there
于 2020-02-28T17:04:00.350 回答