(PECL gearman >= 0.5.0)
GearmanClient::doHighBackground — Run a high priority task in the background
Runs a high priority task in the background, returning a job handle which can be used to get the status of the running task. High priority tasks take precedence over normal and low priority tasks in the job queue.
워커가 실행할 등록된 함수
처리할 직렬화된 데이터
특정 태스크를 인식하는데 사용하는 고유 ID
The job handle for the submitted task.