On Fri, Jan 04, 2008 at 02:42:05PM +0100, Stefan Fritsch wrote:
> Hi,
>
> this bug can be quite annoying because of the resources used by the hung
> processes. It happens e.g. under Linux when epoll is used.
>
> The patch from http://issues.apache.org/bugzilla/show_bug.cgi?id=42829#c14
> has been in Debian unstable/Ubuntu hardy for several weeks and there have
> not been any complaints.
>
> It would be nice if you could look at it and commit it to svn.
I can confirm that there are problems with the restart at least on
FreeBSD-4.x/prefork.
On FreeBSD-4.x/prefork I see this after a graceful restart:
--snip--
$ apachectl status
Apache Server Status for localhost
Server Version: Apache/2.3.0-dev (Unix) mod_ssl/2.3.0-dev
OpenSSL/0.9.7d-p1 DAV/2
Server Built: Jan 16 2008 04:19:11
[..]
CPU Usage: u4.45313 s4.3125 cu0 cs0 - .00454% CPU load
.0265 requests/sec - 9 B/second - 372 B/request
10 requests currently being processed, 7 idle workers
GGGGGG_G__GG____W...............................................
................................................................
[...]
--snip--
After another graceful restart, I see
GGGGGGGGGGGGGGGWG____...........................................
and the 'G' processes are stuck at state 'G'.
With the patch applied, I no longer see any of the hanging
"gracefully stuck" processes.
So, from my side, I'd +1 the patch (although I understand the intention
of the code, I have not "brain-traced" all code paths, so this is not
a final "code +1" but just a "appears to fix the problem +1").
Anyone else?
Martin
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