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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 43081] - Event MPM doesn't respect graceful-stop
Date Tue, 02 Oct 2007 14:54:48 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=43081





------- Additional Comments From serai@lans-tv.com  2007-10-02 07:54 -------

2.2.x

config:

StartServers          1
MaxClients          2
MinSpareThreads      1
MaxSpareThreads      2
ThreadsPerChild      2
MaxRequestsPerChild   0
Timeout 6000

On this config there are two worker threads.

Make two workers busy.
(e.g. start two telnet and request
 GET / HTTP/1.1
 Host: localhost
 X-DUMMY: foo
and leave it)

Listener thread is waiting for new connections and/or new requests from keep-
alive on apr_pollset_poll

#2  0x0016dc28 in apr_pollset_poll (pollset=0x8e8a218, timeout=1000,
    num=0xb574b35c, descriptors=0xb574b360)
    at /home/saki/httpd-2.2.4/srclib/apr/poll/unix/epoll.c:239
#3  0x0808fffd in listener_thread (thd=0x8e80400, dummy=0x8eae550)
    at /home/saki/httpd-2.2.x/server/mpm/experimental/event/event.c:894


If you perform  a graceful-stop now, the listener thread will stop listening 
immediately.


Make one more connection.
(e.g. access from your webbrowser)

The listener thread is waiting for a idle worker.


#3  0x08093091 in ap_queue_info_wait_for_idler (queue_info=0x8e802f0)
    at /home/saki/httpd-2.2.x/server/mpm/experimental/event/fdqueue.c:157
#4  0x0808fcfd in get_worker (have_idle_worker_p=0xb574b364)
    at /home/saki/httpd-2.2.x/server/mpm/experimental/event/event.c:773
#5  0x080903d4 in listener_thread (thd=0x8e80400, dummy=0x8eae550)
    at /home/saki/httpd-2.2.x/server/mpm/experimental/event/event.c:912


Even if you perform a graceful-stop now, the listener thread won't stop 
listening.

$ ./apachectl graceful-stop && ./apachectl start
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs

$./apachectl start
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs


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