client.py 文件源码

def _post_request(self, body, headers):
        retry_count = self.max_retries
        while True:
            logger.debug("POST %s %r %r", self.url.path, body, headers)
            try:
                self.connection.request('POST', self.url.path, body=body, headers=headers)
                response = self.connection.getresponse()
            except httplib.HTTPException as e:
                if retry_count > 0:
                    delay = math.exp(-retry_count)
                    logger.debug("HTTP protocol error, will retry in %s seconds...", delay, exc_info=True)
                    self.close()
                    self.connect()
                    time.sleep(delay)
                    retry_count -= 1
                    continue
                raise errors.InterfaceError('RPC request failed', cause=e)
            else:
                if response.status == httplib.SERVICE_UNAVAILABLE:
                    if retry_count > 0:
                        delay = math.exp(-retry_count)
                        logger.debug("Service unavailable, will retry in %s seconds...", delay, exc_info=True)
                        time.sleep(delay)
                        retry_count -= 1
                        continue
                return response