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Bug #45133 too many open files
Submitted: 2008-05-30 02:09 UTC Modified: 2008-07-19 01:00 UTC
Votes:10
Avg. Score:4.5 ± 0.8
Reproduced:7 of 8 (87.5%)
Same Version:4 (57.1%)
Same OS:2 (28.6%)
From: mckinneyseller at yahoo dot com Assigned:
Status: No Feedback Package: Scripting Engine problem
PHP Version: 5.2.6 OS: Centos
Private report: No CVE-ID: None
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From: mckinneyseller at yahoo dot com
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 [2008-05-30 02:09 UTC] mckinneyseller at yahoo dot com 
Description:
------------
'./configure' '--build=i686-redhat-linux-gnu' '--host=i686-redhat-linux-gnu' '--target=i386-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--cache-file=../config.cache' '--with-libdir=lib' '--with-config-file-path=/etc' '--with-config-file-scan-dir=/etc/php.d' '--disable-debug' '--with-pic' '--disable-rpath' '--without-pear' '--with-bz2' '--with-curl' '--with-exec-dir=/usr/bin' '--with-freetype-dir=/usr' '--with-png-dir=/usr' '--enable-gd-native-ttf' '--without-gdbm' '--with-gettext' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr' '--with-openssl' '--with-png' '--with-pspell' '--with-expat-dir=/usr' '--with-pcre-regex' '--with-zlib' '--with-layout=GNU' '--enable-exif' '--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-sysvmsg' '--enable-track-vars' '--enable-trans-sid' '--enable-yp' '--enable-wddx' '--with-kerberos' '--enable-ucd-snmp-hack' '--with-unixODBC=shared,/usr' '--enable-memory-limit' '--enable-shmop' '--enable-calendar' '--enable-dbx' '--enable-dio' '--without-mime-magic' '--without-sqlite' '--with-libxml-dir=/usr' '--with-xml' '--with-apxs2=/usr/sbin/apxs' '--without-mysql' '--without-gd' '--without-odbc' '--disable-dom' '--disable-dba' '--without-unixODBC' '--disable-pdo' '--disable-xmlreader' '--disable-xmlwriter' '--disable-json' '--with-mcrypt=/usr/local' '--with-mhash=/usr/local'

PHP Version 5.2.6
Apache Version 	Apache/2.2.3 (CentOS)
Apache API Version 	20051115 


Reproduce code:
---------------
All includes leave the .php file open.

I am running the magento e-commerce package.

The includes are standard.

This bug was reported as bug #43105 and the change log says it was
fixed for php 5.2.6 and that is what I am running per above phpinfo.


Expected result:
----------------
When I run lsof -u apache | grep magento I do not expect to see any
open .php files.



Actual result:
--------------
I have 1900 open files.  Many are multiple file handles for the same file.  I eventually get "too many open files" error.  Some example output from 
lsof -u apache | grep magento are:

httpd   15777 apache   31r   REG      0,211    28400   82674022 /var/www/vhosts/bubbleyou.com/httpdocs/magento/app/code/core/Mage/Core/Model/App.php
httpd   15777 apache   32r   REG      0,211     3704   82483264 /var/www/vhosts/bubbleyou.com/httpdocs/magento/lib/Varien/Event/Collection.php
httpd   15777 apache   33r   REG      0,211     2587   82483270 /var/www/vhosts/bubbleyou.com/httpdocs/magento/lib/Varien/Event/Observer/Collection.php
httpd   15777 apache   34r   REG      0,211    27056   82673926 /var/www/vhosts/bubbleyou.com/httpdocs/magento/app/code/core/Mage/Core/Model/Config.php
httpd   15777 apache   35r   REG      0,211     1300   82674010 /var/www/vhosts/bubbleyou.com/httpdocs/magento/app/code/core/Mage/Core/Model/Config/Base.php
httpd   15777 apache   36r   REG      0,211    14602   82483250 /var/www/vhosts/bubbleyou.com/httpdocs/magento/lib/Varien/Simplexml/Config.php
httpd   15777 apache   37r   REG      0,211    12798   82673982 /var/www/vhosts/bubbleyou.com/httpdocs/magento/app/code/core/Mage/Core/Model/Locale.php
httpd   15777 apache   38r   REG      0,211     4426   82674014 /var/www/vhosts/bubbleyou.com/httpdocs/magento/app/code/core/Mage/Core/Model/Config/Options.php
httpd   15777 apache   39r   REG      0,211    19181   82483316 /var/www/vhosts/bubbleyou.com/httpdocs/magento/lib/Varien/Object.php

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 [2008-05-30 16:57 UTC] mckinneyseller at yahoo dot com 
Here is reproducible source code:
<?php
echo '<br>';
echo 'this is test1.php';
echo '<br>';
echo '<br>now include include1.php';
include ('include1.php');
echo '<br>';
require_once('require1.php');
?>


The lsof output is:
httpd   22255 apache   28r   REG      0,211       63   81173388 /var/www/vhosts/bubbleyou.com/httpdocs/test2.php
httpd   22255 apache   29r   REG      0,211       65   81173382 /var/www/vhosts/bubbleyou.com/httpdocs/include1.php
httpd   22255 apache   30r   REG      0,211      169   81173386 /var/www/vhosts/bubbleyou.com/httpdocs/test1.php
httpd   22255 apache   31r   REG      0,211       65   81173382 /var/www/vhosts/bubbleyou.com/httpdocs/include1.php
httpd   22255 apache   33r   REG      0,211       63   81173388 /var/www/vhosts/bubbleyou.com/httpdocs/test2.php
httpd   22255 apache   34r   REG      0,211       63   81173388 /var/www/vhosts/bubbleyou.com/httpdocs/test2.php
httpd   22255 apache   36r   REG      0,211       65   81173382 /var/www/vhosts/bubbleyou.com/httpdocs/include1.php


And every time I rerun the above code I get more open file handles for these same files.
When I run under PHP 5.2.0, I don't get this result.
 [2008-05-30 17:10 UTC] mckinneyseller at yahoo dot com 
I did another test.  It is only the include that keeps the file handle open.  If I change to be include_once, it does not happen.

Unfortunately the magento ecommerce package uses include and there are thousands of files that would have to be changed to use include_once instead -- and it would probably break the ecommerce package.

This is a bug in PHP 5.2.6 and was in PHP 5.2.5 too.
 [2008-07-11 16:21 UTC] jani@php.net 
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.
 [2008-07-19 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 [2011-09-24 08:52 UTC] gongobot at yandex dot ru 
UBUNTU 10.04.3
PHP 5.3.2

for ($i=0; $i < 1000; $i++) include_once('/www/domain.com/config.inc.php');

Warning: include_once(/www/domain.com/config.inc.php): failed to open stream: Too many open files in test.php

lsof -u www-data | wc -l
And I have 7600 open files.
 
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