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tornado_gracefull_stop
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| parallel --no-notice curl localhost:8080/{} ::: 4 5 3 8 10 |
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| import tornado.ioloop | |
| import tornado.web | |
| import tornado.gen | |
| class MyHandler(tornado.web.RequestHandler): | |
| @tornado.gen.coroutine | |
| def get(self, num): | |
| yield tornado.gen.sleep(int(num)) | |
| self.write('res {}\n'.format(num)) | |
| def stop(loop, server): | |
| def soft_stop(): | |
| if set(loop._handlers.keys()) - set([loop._waker.fileno()]): | |
| loop.call_later(1, soft_stop) | |
| else: | |
| loop.stop() | |
| print 'Stopping server, {}'.format(loop._handlers) | |
| server.stop() | |
| server.close_all_connections() | |
| #class GracefulRequestHandler(tornado.web.RequestHandler): | |
| # def initialize(self): | |
| # if self.application.is_shutting_down: | |
| # self.set_header('Connection', 'close') | |
| # self.request.connection.no_keep_alive = True | |
| soft_stop() | |
| loop.call_later(30, loop.stop) | |
| if __name__ == '__main__': | |
| loop = tornado.ioloop.IOLoop.current() | |
| app = tornado.web.Application([(r'/(.*)', MyHandler)]) | |
| server = app.listen(8080, '127.0.0.1') | |
| loop.call_later(5, stop, loop, server) | |
| loop.start() |
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