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Date: Sun, 22 Aug 2010 09:11:06 -0400 (EDT)
From: bugzilla@apache.org
To: bugs@httpd.apache.org
Subject: DO NOT REPLY [Bug 49798] New: [mod_log_config] Piped Log scripts
 process cause warn
Message-ID: <bug-49798-7868@https.issues.apache.org/bugzilla/>
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https://issues.apache.org/bugzilla/show_bug.cgi?id=3D49798

           Summary: [mod_log_config] Piped Log scripts process cause warn
           Product: Apache httpd-2
           Version: 2.2.15
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mod_log_config
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: l.declercq@nuxwin.com


Hello ;

When I do an 'apache2ctl gracefull', I get following warning in my apache
error.log:

[Sun Aug 22 14:46:00 2010] [warn] long lost child came home! (pid 10436)

After some avestigations, I found that it's the'mod_log_config' module that
cause this issue when we use Piped Log. To show, the problem:


'ps aux' result before do the gracefull:

root      8511  0.1  0.4   6824  4256 ?        Ss   14:18   0:03
/usr/sbin/apache2 -k start
root     10502  0.0  0.0   1748   500 ?        S    14:46   0:00 /bin/sh -c
/var/www/ispcp/engine/ispcp-apache-logger
www-data 10503  0.0  0.2   6192  2324 ?        S    14:46   0:00
/usr/sbin/apache2 -k start
root     10504  0.0  0.2   4532  2984 ?        S    14:46   0:00 /usr/bin/p=
erl
/var/www/ispcp/engine/ispcp-apache-logger
www-data 10505  0.0  0.2   6824  2188 ?        S    14:46   0:00
/usr/sbin/apache2 -k start
www-data 10506  0.0  0.2 228236  2856 ?        Sl   14:46   0:00
/usr/sbin/apache2 -k start
www-data 10507  0.0  0.2 228236  2860 ?        Sl   14:46   0:00
/usr/sbin/apache2 -k start

Here, you can see my main Piped Log script process (pid 10502) and the seco=
nd
(pid 10504) that is the background process from (pid 10436).

When I do the graceful, I get the following:

[Sun Aug 22 14:52:50 2010] [notice] SIGUSR1 received.  Doing graceful resta=
rt
[Sun Aug 22 14:52:51 2010] [notice] Stopping ispCP Apache logger (pid 10504)
[Sun Aug 22 14:52:51 2010] [notice] Apache/2.2.16 (Debian) mod_fcgid/2.3.5
configured -- resuming normal operations
[Sun Aug 22 14:52:51 2010] [warn] long lost child came home! (pid 10502)
[Sun Aug 22 14:52:51 2010] [notice] Starting ispCP Apache logger (pid 10579)

Note: Log lines for the logger come from my logging script (Added to show t=
he
problem).

After the gracefull, my 'px aux' result is like this:

root      8511  0.1  0.4   6824  4256 ?        Ss   14:18   0:03
/usr/sbin/apache2 -k start
root     10577  0.0  0.0   1748   500 ?        S    14:52   0:00 /bin/sh -c
/var/www/ispcp/engine/ispcp-apache-logger
www-data 10578  0.0  0.2   6192  2324 ?        S    14:52   0:00
/usr/sbin/apache2 -k start
root     10579  0.0  0.2   4532  2984 ?        S    14:52   0:00 /usr/bin/p=
erl
/var/www/ispcp/engine/ispcp-apache-logger
www-data 10580  0.0  0.2   6824  2188 ?        S    14:52   0:00
/usr/sbin/apache2 -k start
www-data 10581  0.0  0.2 228236  2856 ?        Sl   14:52   0:00
/usr/sbin/apache2 -k start
www-data 10582  0.0  0.2 228236  2860 ?        Sl   14:52   0:00
/usr/sbin/apache2 -k start

Ok, it's just a warn but I think that should be solved.  I've tried with
alternative syntax (Shell not involved at all) and the same problem occurs =
on
the main process.

My system:

root@ispcp:/etc/apache2/sites-available# uname -a
Linux ispcp 2.6.32-5-686 #1 SMP Sat Jul 24 02:27:10 UTC 2010 i686 GNU/Linux

The involved SHELL:
root@ispcp:/etc/apache2/sites-available# ls -la /bin/sh
lrwxrwxrwx 1 root root 4 21 ao=C3=BBt  07:11 /bin/sh -> dash

The Apache information:
root@ispcp:/etc/apache2/sites-available# apache2ctl -V
Server version: Apache/2.2.16 (Debian)
Server built:   Jul 24 2010 20:24:16
Server's Module Magic Number: 20051115:24
Server loaded:  APR 1.4.2, APR-Util 1.3.9
Compiled using: APR 1.4.2, APR-Util 1.3.9
Architecture:   32-bit
Server MPM:     Worker
  threaded:     yes (fixed thread count)
    forked:     yes (variable process count)
Server compiled with....
 -D APACHE_MPM_DIR=3D"server/mpm/worker"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=3D128
 -D HTTPD_ROOT=3D"/etc/apache2"
 -D SUEXEC_BIN=3D"/usr/lib/apache2/suexec"
 -D DEFAULT_PIDLOG=3D"/var/run/apache2.pid"
 -D DEFAULT_SCOREBOARD=3D"logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG=3D"logs/error_log"
 -D AP_TYPES_CONFIG_FILE=3D"mime.types"
 -D SERVER_CONFIG_FILE=3D"apache2.conf"


Thank a lot if you can solve this problem.

Note: Sorry for my poor English, I'm french.

Note2: not 2.2.16 version is selectable here , why ?

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