ora_q000, ora_q001进程

霍俊路

您好：
我在Linux 系统中看到了这2个进程ora_q000, ora_q001。请问这2个进程的具体作用什么？他怎么样跟数据库的其他进程相互协调工作？

fluttersnow

http://docs.oracle.com/cd/E14072_01/server.112/e10820/bgprocesses.htm

Maclean Liu(刘相兵

Qnnn AQ Server Class Process Performs various AQ-related background task for QMNC

Qnnn acts as a slave process for QMNC and carry out tasks assigned by QMNC. The
number of these processes is dynamically managed by QMNC based on load.

The Qnnn processes are in a wait loop
(waiting for a task on a global list of tasks) until
the task arrives. If a process is idle for a long time,
then it is automatically killed. If a task is not picked
by any slave process for a long duration, then
QMNC starts a new slave process.


简单来说是 高级队列的 Qmnc的slave 进程，完成QMNC 分配的任务。