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Date: Thu, 7 Aug 2014 10:40:04 +0200
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From: Mar Imp <marimpimp@gmail.com>
To: users@httpd.apache.org
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Subject: Re: [users@httpd] Windows Apache 2.4.9 restarts itself

Hi Jeff,

I checked the logfiles again. There is nothing unusual there.
There are no other errors logged in vhost-logfiles at the time of the
restart, nothing in the Windows Event Log.


What can we do? Level up the Loglevel ?
At this time I have =E2=80=9CLogLevel warn=E2=80=9D set in httpd.conf.
What do you suggest?

Thx
Mar Imp


2014-08-05 16:37 GMT+02:00 Jeff Trawick <trawick@gmail.com>:
> On Tue, Aug 5, 2014 at 8:25 AM, Jeff Trawick <trawick@gmail.com> wrote:
>>
>> On Tue, Aug 5, 2014 at 6:35 AM, Mar Imp <marimpimp@gmail.com> wrote:
>>>
>>> Hi Jeff,
>>>
>>> after 5 Days the next Apache restart
>>>
>>> it contains a new Error:
>>> [Tue Aug 05 01:36:30.138535 2014] [mpm_winnt:error] [pid 31884:tid
>>> 444] (OS 6)The handle is invalid.  : AH00360: Child: Failure releasing
>>> the start mutex
>>>
>>> Logfile:
>>> [Tue Aug 05 01:36:29.137575 2014] [mpm_winnt:crit] [pid 31884:tid 444]
>>> (OS 6)The handle is invalid.  : AH00356: Child: WAIT_FAILED --
>>> shutting down server
>>> [Tue Aug 05 01:36:29.137575 2014] [mpm_winnt:crit] [pid 31884:tid 444]
>>> (OS 6)The handle is invalid.  : AH02644: Child: Event handle #0 (8) is
>>> invalid
>>> [Tue Aug 05 01:36:29.925336 2014] [mpm_winnt:warn] [pid 31884:tid 536]
>>> (OS 10038)An operation was attempted on something that is not a
>>> socket.  : AH00344: accept() failed.
>>> [Tue Aug 05 01:36:30.138535 2014] [mpm_winnt:error] [pid 31884:tid
>>> 444] (OS 6)The handle is invalid.  : AH00360: Child: Failure releasing
>>> the start mutex
>>> [Tue Aug 05 01:36:45.466468 2014] [mpm_winnt:warn] [pid 31884:tid
>>> 5696] (OS 10038)An operation was attempted on something that is not a
>>> socket.  : AH00344: accept() failed.
>>> [Tue Aug 05 01:37:01.077535 2014] [mpm_winnt:notice] [pid 31884:tid
>>> 444] AH00362: Child: Waiting 30 more seconds for 9 worker threads to
>>> finish.
>>> [Tue Aug 05 01:37:31.113122 2014] [mpm_winnt:notice] [pid 31884:tid
>>> 444] AH00362: Child: Waiting 0 more seconds for 6 worker threads to
>>> finish.
>>> [Tue Aug 05 01:37:31.213217 2014] [mpm_winnt:notice] [pid 31884:tid
>>> 444] AH00363: Child: Terminating 6 threads that failed to exit.
>>> [Tue Aug 05 01:37:31.213217 2014] [mpm_winnt:notice] [pid 31884:tid
>>> 444] AH00364: Child: All worker threads have exited.
>>> [Tue Aug 05 01:37:31.370367 2014] [mpm_winnt:notice] [pid 13424:tid
>>> 536] AH00428: Parent: child process 31884 exited with status 0 --
>>> Restarting.
>>> [Tue Aug 05 01:37:32.213174 2014] [mpm_winnt:notice] [pid 13424:tid
>>> 536] AH00455: Apache/2.4.10 (Win64) OpenSSL/1.0.1h configured --
>>> resuming normal operations
>>> [Tue Aug 05 01:37:32.213174 2014] [mpm_winnt:notice] [pid 13424:tid
>>> 536] AH00456: Apache Lounge VC11 Server built: Jul 17 2014 12:58:29
>>> [Tue Aug 05 01:37:32.213174 2014] [core:notice] [pid 13424:tid 536]
>>> AH00094: Command line: 'C:\\Apache24\\bin\\httpd.exe -d C:/Apache24'
>>> [Tue Aug 05 01:37:32.214178 2014] [mpm_winnt:notice] [pid 13424:tid
>>> 536] AH00418: Parent: Created child process 31668
>>> [Tue Aug 05 01:37:33.568475 2014] [mpm_winnt:notice] [pid 31668:tid
>>> 396] AH00354: Child: Starting 300 worker threads.
>>>
>>> Did you have time to investigate any further?
>>> Can I help in any way ?
>>
>>
>> I am spending a modest amount of time on this.  For now, keep posting wh=
en
>> you see something different in the log at the time of failure.
>>
>>
>>>
>>>
>>> thx and kind regards
>>> Mar Imp
>>>
>>>
>>> 2014-07-31 15:44 GMT+02:00 Mar Imp <marimpimp@gmail.com>:
>>> > Hi,
>>> >
>>> > -> the Apache server restarted itself again:
>>> >
>>> > [Wed Jul 30 22:15:21.604987 2014] [mpm_winnt:crit] [pid 34808:tid 464=
]
>>> > (OS 6)The handle is invalid.  : AH00356: Child: WAIT_FAILED --
>>> > shutting down server
>>> > [Wed Jul 30 22:15:21.604987 2014] [mpm_winnt:crit] [pid 34808:tid 464=
]
>>> > (OS 6)The handle is invalid.  : AH02644: Child: Event handle #0 (8) i=
s
>>> > invalid
>>> > [Wed Jul 30 22:15:23.026349 2014] [mpm_winnt:warn] [pid 34808:tid
>>> > 4624] (OS 10038)An operation was attempted on something that is not a
>>> > socket.  : AH00344: accept() failed.
>>> > [Wed Jul 30 22:15:39.956951 2014] [mpm_winnt:warn] [pid 34808:tid
>>> > 3092] (OS 10038)An operation was attempted on something that is not a
>>> > socket.  : AH00344: accept() failed.
>>> > [Wed Jul 30 22:15:53.544739 2014] [mpm_winnt:notice] [pid 34808:tid
>>> > 464] AH00362: Child: Waiting 30 more seconds for 3 worker threads to
>>> > finish.
>>> > [Wed Jul 30 22:16:16.571534 2014] [mpm_winnt:notice] [pid 34808:tid
>>> > 464] AH00364: Child: All worker threads have exited.
>>> > [Wed Jul 30 22:16:16.687244 2014] [mpm_winnt:notice] [pid 13424:tid
>>> > 536] AH00428: Parent: child process 34808 exited with status 0 --
>>> > Restarting.
>>> > [Wed Jul 30 22:16:17.454981 2014] [mpm_winnt:notice] [pid 13424:tid
>>> > 536] AH00455: Apache/2.4.10 (Win64) OpenSSL/1.0.1h configured --
>>> > resuming normal operations
>>> > [Wed Jul 30 22:16:17.454981 2014] [mpm_winnt:notice] [pid 13424:tid
>>> > 536] AH00456: Apache Lounge VC11 Server built: Jul 17 2014 12:58:29
>>> > [Wed Jul 30 22:16:17.454981 2014] [core:notice] [pid 13424:tid 536]
>>> > AH00094: Command line: 'C:\\Apache24\\bin\\httpd.exe -d C:/Apache24'
>>> > [Wed Jul 30 22:16:17.455982 2014] [mpm_winnt:notice] [pid 13424:tid
>>> > 536] AH00418: Parent: Created child process 31884
>>> > [Wed Jul 30 22:16:18.727198 2014] [mpm_winnt:notice] [pid 31884:tid
>>> > 444] AH00354: Child: Starting 300 worker threads.
>>> >
>>> > -> There are no suspicious entries in other apache logfiles or in the
>>> > windows event log.
>>> >
>>> > -> you asked about loaded modules:
>>> >
>>> > C:\Apache24\bin>httpd.exe -t -D DUMP_MODULES
>>> > Loaded Modules:
>>> >  core_module (static)
>>> >  win32_module (static)
>>> >  mpm_winnt_module (static)
>>> >  http_module (static)
>>> >  so_module (static)
>>> >  access_compat_module (shared)
>>> >  actions_module (shared)
>>> >  alias_module (shared)
>>> >  allowmethods_module (shared)
>>> >  asis_module (shared)
>>> >  auth_basic_module (shared)
>>> >  authn_core_module (shared)
>>> >  authn_file_module (shared)
>>> >  authz_core_module (shared)
>>> >  authz_groupfile_module (shared)
>>> >  authz_host_module (shared)
>>> >  authz_user_module (shared)
>>> >  autoindex_module (shared)
>>> >  cache_module (shared)
>>> >  cache_disk_module (shared)
>>> >  cgi_module (shared)
>>> >  deflate_module (shared)
>>> >  dir_module (shared)
>>> >  env_module (shared)
>>> >  expires_module (shared)
>>> >  filter_module (shared)
>>> >  headers_module (shared)
>>> >  include_module (shared)
>>> >  isapi_module (shared)
>>> >  log_config_module (shared)
>>> >  mime_module (shared)
>>> >  negotiation_module (shared)
>>> >  proxy_module (shared)
>>> >  proxy_connect_module (shared)
>>> >  proxy_http_module (shared)
>>> >  rewrite_module (shared)
>>> >  setenvif_module (shared)
>>> >  socache_shmcb_module (shared)
>>> >  ssl_module (shared)
>>> >
>>> > -> apache works as a caching reverse proxy
>>> >
>>> > hope you can find out something that solves this issue ...
>>> >
>>> > thank you for your help!
>>> >
>>> > 2014-07-31 13:02 GMT+02:00 Jeff Trawick <trawick@gmail.com>:
>>> >> On Tue, Jul 29, 2014 at 7:40 AM, Jeff Trawick <trawick@gmail.com>
>>> >> wrote:
>>> >>>
>>> >>> On Tue, Jul 29, 2014 at 5:33 AM, Mar Imp <marimpimp@gmail.com> wrot=
e:
>>> >>>>
>>> >>>> Hi Jeff,
>>> >>>>
>>> >>>> After the first restart, apache restarted itself 2 more times
>>> >>>> yesterday. Good news: the additional information IS part of the
>>> >>>> logs:
>>> >>>> [Mon Jul 28 16:48:10.070355 2014] [mpm_winnt:crit] [pid 38752:tid
>>> >>>> 388]
>>> >>>> (OS 6)The handle is invalid.  : AH02644: Child: Event handle #0 (8=
)
>>> >>>> is
>>> >>>> invalid
>>> >>>> does it help you to identify the issue?
>>> >>>
>>> >>>
>>> >>> Unfortunately it does not immediately pinpoint the problem, but it
>>> >>> can't
>>> >>> hurt :)  8 is the value for the handle that suddenly went bad.
>>> >>
>>> >>
>>> >> I'll try to spend some real time on this over the weekend.  This is =
a
>>> >> very
>>> >> interesting issue.
>>> >>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>>> For additional commands, e-mail: users-help@httpd.apache.org
>>>
>>
>
> Here's the little bit I know:
>
> * Value 8 for event handle #0 (exit_event) is fine.  (That's what I see i=
n
> my testing right after initialization.)
> * Ignore AH00344 errors, which happen after shutdown starts.  These shoul=
d
> have a lower log priority if the server is already shutting down.
> * If the exit event is closed inadvertently (tested by me with a patch to
> close the event after a certain number of requests), the  shutdown starts
> with the same error.
> * I managed to wedge the server after a certain number of automatic resta=
rts
> of the child.
>
> It would be helpful to check if some operational error or other relativel=
y
> infrequent activity is logged while handling a request right before the
> child starts shutting down.  If you have separate error logs for vhosts,
> check in those logs.
>

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