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Bug #31080 ftp_connect() fails on a system where there is a large number of open files.
Submitted: 2004-12-14 04:12 UTC Modified: 2005-04-24 15:56 UTC
Votes:3
Avg. Score:5.0 ± 0.0
Reproduced:3 of 3 (100.0%)
Same Version:2 (66.7%)
Same OS:2 (66.7%)
From: jon at destra dot com Assigned:
Status: Wont fix Package: FTP related
PHP Version: 4CVS-2005-03-21 OS: *
Private report: No CVE-ID: None
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 [2004-12-14 04:12 UTC] jon at destra dot com 
Description:
------------
ftp_connect fails on a server with a large number of open files.

Eg.  In a virtual hosting environment where Apache has 1000+ log files open.



Reproduce code:
---------------
$ftp1 = ftp_connect('127.0.0.1') or die("Couldn't connect to server");


Expected result:
----------------
Established connection with a handle via $ftp1.

Actual result:
--------------
The connection fails.

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 [2004-12-14 14:33 UTC] derick@php.net 
You just run out of filedescriptors. This is not something PHP can fix for you. You either need to cut down in the number of Open files, or adjust your kernel parameters.
 [2004-12-15 00:55 UTC] jon at destra dot com 
Ahh, no I didn't.  I have more then enough file descriptors but PHP is not using them.

[root@ozhlin01 root]# cat /proc/sys/fs/file-max
32768

I suspect it is hard coding it's max number of file handles?
 [2004-12-15 02:30 UTC] jon at destra dot com 
Please note I opened this ticket at the suggestion of Wez Furlong.  Please also take a look at the following:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=125258
 [2004-12-15 13:51 UTC] jorton@php.net 
We've just been using hacky workarounds for this which I doubt anyone really wants in the 4.3.x tree.  Wez has fixed all such problems properly in 5.0.3 so the proper solution lies there.
 [2004-12-17 02:59 UTC] sniper@php.net 
Assigning to Wez then, if he would be so nice to fix this in 4.3.x branch too. :)
 [2004-12-17 03:02 UTC] wez@php.net 
I don't have the time to back-port the patch, which is why I suggested opening up this bug report.
 [2005-04-24 15:56 UTC] sniper@php.net 
It works in PHP 5 so use PHP 5.
 
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