Re: graceful restart occasionally gives "could not bind" error

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On Wed, May 26, 2010 at 9:22 AM, Raphael Bauduin <rblists@xxxxxxxxx> wrote:
> Hi,
>
> With an apache 2.2 running on FreeBSD

which level of Apache? (2.2.9 had a change in this area of processing)
which level of FreeBSD?

>                                                    , I occasionally get a problem
> with a graceful restart.
> Issuing the command apachectl graceful results in these messages in
> the error log:
>
> [Wed May 26 14:45:48 2010] [notice] Graceful restart requested, doing restart
> [Wed May 26 14:45:53 2010] [warn] module dav_module is already loaded, skipping
> [Wed May 26 14:45:53 2010] [crit] (22)Invalid argument: make_sock: for
> address [::]:443, apr_socket_opt_set: (IPV6_V6ONLY)
> (48)Address already in use: make_sock: could not bind to address 0.0.0.0:443
> no listening sockets available, shutting down

hmmm...  dunno why setting that socket option is failing (the first
[crit] message)

if you don't need IPv6, change your Listen directive from "Listen 443"
to "Listen 0.0.0.0:443" to work around the problem, whatever it is


>
> or this
>
> [Wed May 26 15:02:52 2010] [notice] Graceful restart requested, doing restart
> [Wed May 26 15:02:57 2010] [warn] module dav_module is already loaded, skipping
> (48)Address already in use: make_sock: could not bind to address [::]:443
>
>
>
> This error is not systematic, but it makes the command unreliable and
> unusable in a cron task.
>
> Any hint as to what causes this problem?
>
> Thanks in advance!
>
> Raph
>
>
>
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