python - mod_wsgi + apache不是多线程的，为什么？

Question

WSGI应用

# coding: utf-8

import time

def application(environ, start_response):
    status = '200 OK'
    output = str(time.time())
    time.sleep(5)
    output += ' -> ' + str(time.time())

    response_headers = [('Content-type', 'text/html; charset=utf-8'),
                        ('Content-Length', str(len(output)))]
    start_response(status, response_headers)

    return [output]

Apache 虚拟主机

    ServerName localhost

    WSGIDaemonProcess main user=www-data group=www-data processes=1 threads=5
    WSGIScriptAlias / /var/www/main/main.wsgi

    
        WSGIProcessGroup main
        WSGIApplicationGroup %{GLOBAL}
        Order deny,allow
        Allow from all
    

    ErrorLog /var/log/apache2/main_error_log
    CustomLog /var/log/apache2/main_log common

连接多个客户端，它们按顺序处理，没有多线程。为什么？

Answer 1

mod_wsgi 邮件列表正在处理此问题。请参阅:

http://groups.google.com/group/modwsgi/browse_frm/thread/b8aaab6bfc4cca6d