Re: core_output_filter

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Aloha,

Thanks for replaying my email... well yah i dont really know whether
what writen on  the error_log message relevant to my problem. I've
read from web article, that if the error log contain so much "write
data to network" might cause the httpd server freezing / hang, and the
symtomps can be weekly or even in 20 mins or something.

well i got a httpd server... it have a symptoms looks like that..
first the error_log got a lot of error because file not found, it
seems that google caching my web page, and its (totaly) diffrent  from
current structure. And i tought it wont become a problem.

And then i change the LogLevel, and i found a lot of
"core_output_filter" "broken pipe" and other, its a lot a mount of it.
And i begin to seek whats is all about, and one of the article said
that it can cause the freeze. So I begin googling and join this milis.
:)

When the server freezing, when i check the status.. it will apper like
: "httpd dead but pid file exists"... and it should be restart before
it start to run again... or i've be DDos ?

So can anyone help me with this problem ?


Sample 1 :

[Thu Jan 04 09:48:19 2007] [info] [client 66.249.66.180] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:48:19 2007] [info] [client 66.249.66.180] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:48:24 2007] [error] [client 203.130.213.13] File does
not exist: /home/nafed06/public_html/indo, referer:
http://www.google.co.id/search?hl=id&q=harga+produk+fatty+acid&btnG=Telusuri+dengan+Google&meta=
[Thu Jan 04 09:48:27 2007] [info] [client 64.110.56.82] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:49:01 2007] [info] [client 121.205.217.21] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:49:01 2007] [info] [client 121.205.217.21] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:49:19 2007] [error] [client 203.130.213.13] File does
not exist: /home/nafed06/public_html/indo, referer:
http://www.google.co.id/search?hl=id&q=harga+produk+fatty+acid&btnG=Telusuri+dengan+Google&meta=
[Thu Jan 04 09:49:37 2007] [info] [client 63.166.111.6] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:49:53 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:49:53 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:51:14 2007] [info] [client 64.110.56.82] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network


Sample 2:

[Thu Jan 04 09:54:53 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:54:53 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:55:39 2007] [info] [client 66.249.66.180] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:55:39 2007] [info] [client 66.249.66.180] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:55:39 2007] [info] [client 202.153.241.158]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Thu Jan 04 09:56:00 2007] [info] [client 202.153.241.158]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Thu Jan 04 09:56:37 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:56:37 2007] [info] [client 121.205.217.21] (70007)The
timeout specified has expired: core_output_filter: writing data to the
network
[Thu Jan 04 09:56:38 2007] [info] [client 121.205.217.21] (32)Broken
pipe: core_output_filter: writing data to the network
[Thu Jan 04 09:56:38 2007] [info] [client 121.205.217.21] (32)Broken
pipe: core_output_filter: writing data to the network


Thanks

Furin Ongko
Immanance IT Center



On 1/4/07, arry@xxxxxxxxxxxxxxx <arry@xxxxxxxxxxxxxxx> wrote:

>> Aloha...
>>
>> I like to ask some question related with FAQ, about the
>> core_output_filter. Well yah.. I've browse the internet and keep
>> looking for the answer...

> I don't see a question.  Your error log messages from core_output_filter
> indicate that a client closed the connection.


> Nick Kew

OK. But then what about my problem? I think it is due to this error.
The problem is described below.

H. Todorov

--

> Hi,
>
> It seems that i can't download files from my apache at all !
> What am i missing ?
> What directives have to be enabled to allow that feature?
>
> I tried with EnableSendfile off and EnableMMAP off , but no luck, again.
>
> Thanks for the help.
>
>
>
>
>> Hello,
>>
>> I have installed Apache2.2 under the cygwin environment with winXP.
>> I have configured authorization Basic and am using the  directory
>> auto-indexing
>> feature(no index.html file in the Documentroot directory).
>>
>> Then when i try to download files from home everything is ok , with
>> Firefox1.5 and IE.
>>
>> When i try to download the files from the office with Firefox1.5 under
>> FedoraCore5 the download begins with "Starting..." and continues like
>> that
>> for ever. No data is transferred. The only difference in terms of
>> network connectivity is that in the office the connection to the
>> internet is through a
>> http-proxy.
>>
>> I thought it could be security issues due to the http-proxy (through which
>> the whole traffic is going through) ,so i configured ssl_v3 with auth
>> Digest on
>> the apache server, but  everything is as before, no change!
>>
>> I have tried with auth Basic, but the result is the same.
>>
>> From the logs i get no evident problems even on level debug.
>> Something suspicious is probably this:
>> "(104)Connection reset by peer: core_output_filter: writing data to the
>> network"
>> and this:
>> "Digest: user arry: nonce expired (367.00 seconds old - max lifetime
>> 300.00) - sending new nonce"
>>
>> I have searched the forums and the net but could not find anything useful.
>> My only hope is with you guys.
>> Thank you.
>>
>> *** Keep her steady as she goes!
>>
>> Hristian Todorov
>>
>> Here is the httpd.conf file:
>> ------------------------------------
>>
>> ServerRoot "/usr"
>> Listen 80
>> #Listen 443 https
>>
>> LoadModule authn_file_module lib/apache2/mod_authn_file.so
>> LoadModule authn_dbm_module lib/apache2/mod_authn_dbm.so
>> LoadModule authn_anon_module lib/apache2/mod_authn_anon.so
>> LoadModule authn_dbd_module lib/apache2/mod_authn_dbd.so
>> LoadModule authn_default_module lib/apache2/mod_authn_default.so
>> LoadModule authz_host_module lib/apache2/mod_authz_host.so
>> LoadModule authz_groupfile_module lib/apache2/mod_authz_groupfile.so
>> LoadModule authz_user_module lib/apache2/mod_authz_user.so
>> LoadModule authz_dbm_module lib/apache2/mod_authz_dbm.so
>> LoadModule authz_owner_module lib/apache2/mod_authz_owner.so
>> LoadModule authz_default_module lib/apache2/mod_authz_default.so
>> LoadModule auth_basic_module lib/apache2/mod_auth_basic.so
>> LoadModule auth_digest_module lib/apache2/mod_auth_digest.so
>> LoadModule dbd_module lib/apache2/mod_dbd.so
>> LoadModule dumpio_module lib/apache2/mod_dumpio.so
>> LoadModule ext_filter_module lib/apache2/mod_ext_filter.so
>> LoadModule include_module lib/apache2/mod_include.so
>> LoadModule filter_module lib/apache2/mod_filter.so
>> LoadModule deflate_module lib/apache2/mod_deflate.so
>> LoadModule log_config_module lib/apache2/mod_log_config.so
>> LoadModule log_forensic_module lib/apache2/mod_log_forensic.so
>> LoadModule logio_module lib/apache2/mod_logio.so
>> LoadModule env_module lib/apache2/mod_env.so
>> LoadModule mime_magic_module lib/apache2/mod_mime_magic.so
>> LoadModule cern_meta_module lib/apache2/mod_cern_meta.so
>> LoadModule expires_module lib/apache2/mod_expires.so
>> LoadModule headers_module lib/apache2/mod_headers.so
>> LoadModule ident_module lib/apache2/mod_ident.so
>> LoadModule usertrack_module lib/apache2/mod_usertrack.so
>> LoadModule unique_id_module lib/apache2/mod_unique_id.so
>> LoadModule setenvif_module lib/apache2/mod_setenvif.so
>> LoadModule version_module lib/apache2/mod_version.so
>> LoadModule proxy_module lib/apache2/mod_proxy.so
>> LoadModule proxy_connect_module lib/apache2/mod_proxy_connect.so
>> LoadModule proxy_ftp_module lib/apache2/mod_proxy_ftp.so
>> LoadModule proxy_http_module lib/apache2/mod_proxy_http.so
>> LoadModule proxy_ajp_module lib/apache2/mod_proxy_ajp.so
>> LoadModule proxy_balancer_module lib/apache2/mod_proxy_balancer.so
>> LoadModule ssl_module lib/apache2/mod_ssl.so
>> LoadModule mime_module lib/apache2/mod_mime.so
>> LoadModule dav_module lib/apache2/mod_dav.so
>> LoadModule status_module lib/apache2/mod_status.so
>> LoadModule autoindex_module lib/apache2/mod_autoindex.so
>> LoadModule asis_module lib/apache2/mod_asis.so
>> LoadModule info_module lib/apache2/mod_info.so
>> LoadModule cgi_module lib/apache2/mod_cgi.so
>> LoadModule dav_fs_module lib/apache2/mod_dav_fs.so
>> LoadModule vhost_alias_module lib/apache2/mod_vhost_alias.so
>> LoadModule negotiation_module lib/apache2/mod_negotiation.so
>> LoadModule dir_module lib/apache2/mod_dir.so
>> LoadModule imagemap_module lib/apache2/mod_imagemap.so
>> LoadModule actions_module lib/apache2/mod_actions.so
>> LoadModule speling_module lib/apache2/mod_speling.so
>> LoadModule userdir_module lib/apache2/mod_userdir.so
>> LoadModule alias_module lib/apache2/mod_alias.so
>> LoadModule rewrite_module lib/apache2/mod_rewrite.so
>> #not good i know - just temporary
>>
>> #SSLProtocol -all +SSLv3
>>
>> #SSLEngine on
>> #SSLCertificateFile    /etc/apache2/server.crt
>> #SSLCertificateKeyFile /etc/apache2/server.key
>>
>>
>> <IfModule !mpm_netware_module>
>> #User ssh #Group HD
>> </IfModule>
>>
>>
>> ServerAdmin you@xxxxxxxxxxx
>> ServerName 172.16.0.2
>> DocumentRoot "/var/www/htdocs"
>>
>> <Directory />
>>    Options FollowSymLinks
>>    AllowOverride None
>>    Order deny,allow
>>    Deny from all
>> </Directory>
>>
>>
>> <Directory "/var/www/htdocs">
>>
>>   #SSLCipherSuite HIGH:MEDIUM
>>
>>    Options All
>>                # Indexes FollowSymLinks
>>    AllowOverride None
>>    Order allow,deny
>>    Allow from all
>>
>>    AuthType Digest
>>    AuthName "Restricted Area"
>>    AuthDigestDomain /var/www/htdocs
>>    AuthDigestProvider file
>>    AuthUserFile /var/www/.digestpwd
>>    Require valid-user
>> </Directory>
>>
>>
>> <IfModule dir_module>
>>    DirectoryIndex index.html
>> </IfModule>
>>
>>
>> <FilesMatch "^\.ht">
>>    Order allow,deny
>>    Deny from all
>>    Satisfy All
>> </FilesMatch>
>>
>>
>> ErrorLog /var/log/apache2/error_log
>> LogLevel debug
>>
>> <IfModule log_config_module>
>>
>>    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\"
>> \"%{User-Agent}i\"" combined
>>    LogFormat "%h %l %u %t \"%r\" %>s %b" common
>>
>>    <IfModule logio_module>
>>      # You need to enable mod_logio.c to use %I and %O
>>      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\"
>> \"%{User-Agent}i\" %I %O" combinedio
>>    </IfModule>
>>
>>    CustomLog /var/log/apache2/access_log common
>>
>> </IfModule>
>>
>> <IfModule alias_module>
>>    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
>> </IfModule>
>>
>> <IfModule cgid_module>
>> </IfModule>
>>
>>
>> <Directory "/var/www/cgi-bin">
>>    AllowOverride None
>>    Options None
>>    Order allow,deny
>>    Allow from all
>> </Directory>
>>
>>
>> DefaultType application/octet-stream
>>            #text/plain
>>
>> <IfModule mime_module>
>>
>>    TypesConfig /etc/apache2/mime.types
>>    AddType application/x-compress .Z
>>    AddType application/x-gzip .gz .tgz
>>
>> </IfModule>
>>
>>
>> #MIMEMagicFile /etc/apache2/magic
>>
>>
>> <IfModule ssl_module>
>> SSLRandomSeed startup builtin
>> SSLRandomSeed connect builtin
>> </IfModule>
>>
>>
>> Include /etc/apache2/conf.d/*.conf

ERROR LOG:
--------------------------------
[Fri Dec 22 14:15:35 2006] [info] mod_unique_id: using ip addr 172.16.0.2
[Fri Dec 22 14:15:36 2006] [info] Init: Seeding PRNG with 136 bytes of entropy
[Fri Dec 22 14:15:36 2006] [info] Init: Generating temporary RSA
private keys (512/1024 bits)
[Fri Dec 22 14:15:36 2006] [info] Init: Generating temporary DH
parameters (512/1024 bits)
[Fri Dec 22 14:15:36 2006] [warn] Init: Session Cache is not
configured [hint: SSLSessionCache]
[Fri Dec 22 14:15:36 2006] [info] Init: Initializing (virtual) servers for SSL
[Fri Dec 22 14:15:36 2006] [info] Server: Apache/2.2.3, Interface:
mod_ssl/2.2.3, Library: OpenSSL/0.9.8d
[Fri Dec 22 14:15:36 2006] [info] mod_unique_id: using ip addr 172.16.0.2
[Fri Dec 22 14:15:37 2006] [info] Init: Seeding PRNG with 136 bytes of entropy
[Fri Dec 22 14:15:37 2006] [info] Init: Generating temporary RSA
private keys (512/1024 bits)
[Fri Dec 22 14:15:37 2006] [info] Init: Generating temporary DH
parameters (512/1024 bits)
[Fri Dec 22 14:15:37 2006] [info] Init: Initializing (virtual) servers for SSL
[Fri Dec 22 14:15:37 2006] [info] Server: Apache/2.2.3, Interface:
mod_ssl/2.2.3, Library: OpenSSL/0.9.8d
[Fri Dec 22 14:15:37 2006] [notice] Digest: generating secret for
digest authentication ...
[Fri Dec 22 14:15:37 2006] [notice] Digest: done
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 3956 for worker proxy:reverse
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 3956 for (*)
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1348 for worker proxy:reverse
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1348 for (*)
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1380 for worker proxy:reverse
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1380 for (*)
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1784 for worker proxy:reverse
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1784 for (*)
[Fri Dec 22 14:15:37 2006] [notice] Apache/2.2.3 (Unix) mod_ssl/2.2.3
OpenSSL/0.9.8d DAV/2 configured -- resuming normal operations
[Fri Dec 22 14:15:37 2006] [info] Server built: Dec  2 2006 14:56:14
[Fri Dec 22 14:15:37 2006] [debug] prefork.c(991): AcceptMutex:
sysvsem (default: sysvsem)
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1360 for worker proxy:reverse
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:15:37 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1360 for (*)
[Fri Dec 22 14:16:39 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1316 for worker proxy:reverse
[Fri Dec 22 14:16:39 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:16:39 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1316 for (*)
[Fri Dec 22 14:17:21 2006] [error] [client 193.52.109.12] File does
not exist: /var/www/htdocs/favicon.ico
[Fri Dec 22 14:18:55 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 1488 for worker proxy:reverse
[Fri Dec 22 14:18:55 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:18:55 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 1488 for (*)
[Fri Dec 22 14:20:05 2006] [info] [client 193.52.109.12]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Fri Dec 22 14:21:36 2006] [info] [client 193.52.109.12]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Fri Dec 22 14:23:23 2006] [info] [client 193.52.109.12] Digest: user
arr: nonce expired (367.00 seconds old - max lifetime 300.00) -
sending new nonce
[Fri Dec 22 14:24:52 2006] [debug] proxy_util.c(1625): proxy: grabbed
scoreboard slot 0 in child 2588 for worker proxy:reverse
[Fri Dec 22 14:24:52 2006] [debug] proxy_util.c(1644): proxy: worker
proxy:reverse already initialized
[Fri Dec 22 14:24:52 2006] [debug] proxy_util.c(1724): proxy:
initialized single connection worker 0 in child 2588 for (*)
[Fri Dec 22 14:26:09 2006] [info] [client 193.52.109.12]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Fri Dec 22 14:27:10 2006] [info] [client 193.52.109.12]
(104)Connection reset by peer: core_output_filter: writing data to the
network
[Fri Dec 22 14:29:15 2006] [info] [client 193.52.109.12] Digest: user
arr: nonce expired (351.00 seconds old - max lifetime 300.00) -
sending new nonce, referer:
http://84.22.2.139:443/Stargate.Atlantis.S03E12.HDTV.XviD-MiNT/
[Fri Dec 22 14:30:34 2006] [warn] child process 3956 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:34 2006] [warn] child process 1348 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:34 2006] [warn] child process 1380 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:34 2006] [warn] child process 1784 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:34 2006] [warn] child process 1488 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:34 2006] [warn] child process 2588 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 3956 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 1348 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 1380 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 1784 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 1488 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:36 2006] [warn] child process 2588 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 3956 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 1348 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 1380 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 1784 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 1488 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:38 2006] [warn] child process 2588 still did not
exit, sending a SIGTERM
[Fri Dec 22 14:30:40 2006] [error] child process 3956 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:40 2006] [error] child process 1348 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:40 2006] [error] child process 1380 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:40 2006] [error] child process 1784 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:40 2006] [error] child process 1488 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:40 2006] [error] child process 2588 still did not
exit, sending a SIGKILL
[Fri Dec 22 14:30:41 2006] [info] removed PID file /var/run/httpd2.pid
(pid=540)
[Fri Dec 22 14:30:41 2006] [notice] caught SIGTERM, shutting down




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--
Furin Ongko

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