Add multi-process support for API services

Implements blueprint multi-process-api-service

This is based on Huang Zhiteng's patch.

This patch adds support for running services as multiple processes. This
is primarily intended to be used with the API service as a way to provide
more concurrency than eventlet can sometimes provide.

A SIGTERM or SIGINT signal will cause the parent process to gracefully
terminate the child processes, allowing them to finish processing the
requests currently being processed. The parent will wait for the
children to finish before exiting.

Change-Id: Ie6d6802626eb42d5e64c4167be363fbf6cea2a1b
This commit is contained in:
Johannes Erdfelt 2012-03-25 02:06:01 +08:00
parent b0f674fe9e
commit 87b0455e23

View File

@ -44,7 +44,7 @@ from nova import log as logging
import eventlet
eventlet.monkey_patch()
eventlet.monkey_patch(os=False)
FLAGS = flags.FLAGS
FLAGS.use_stderr = False