Often blank page with SiteBuilder

[Dupont]

Plesk Sitebuilder 4.2.0 for Linux/Unix

As far as I'm concerned, publication works but I sometimes get a blank page when visiting the published site. Apache error logs say :

[Fri Jun 20 15:19:19 2008] [notice] child pid 68208 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:24 2008] [notice] child pid 68210 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:28 2008] [notice] child pid 68211 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:31 2008] [notice] child pid 68212 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:34 2008] [notice] child pid 68213 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:34 2008] [notice] child pid 68206 exit signal Segmentation fault (11)
[Fri Jun 20 15:26:30 2008] [notice] child pid 68207 exit signal Segmentation fault (11)

...even when the page is not blank. Tested with PHP 5.2.6 and PHP 5.2.4.

check.php :

ioncube=ok os= phpVersion=5.2.4 mbstring=ok zlib=ok session=ok dom=ok domxml_xslt=ok sqlite=2.8.17 sqliteEncoding=UTF-8 gd_png=ok gd_gif=ok gd_jpg=ok gd_wbmp=ok gd=2.0.34 safe_mode=ok mail=ok curl=ok serverApi=Apache Handler folder_permissions_data=fail

Any ideas ?

 

[swopedesign]

Any response?

I am getting problems "blank pages" in SB modules as well. Safari reports the server suddenly dropped the connection. In other browsers I just get a blank page. Does not happen all the time, but it happens often (about half the time or 3/4 the time). More often than my customers like.

 

[abezborodova]

Plesk Sitebuilder 4.2.0 for Linux/Unix

As far as I'm concerned, publication works but I sometimes get a blank page when visiting the published site. Apache error logs say :

[Fri Jun 20 15:19:19 2008] [notice] child pid 68208 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:24 2008] [notice] child pid 68210 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:28 2008] [notice] child pid 68211 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:31 2008] [notice] child pid 68212 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:34 2008] [notice] child pid 68213 exit signal Segmentation fault (11)
[Fri Jun 20 15:19:34 2008] [notice] child pid 68206 exit signal Segmentation fault (11)
[Fri Jun 20 15:26:30 2008] [notice] child pid 68207 exit signal Segmentation fault (11)

...even when the page is not blank. Tested with PHP 5.2.6 and PHP 5.2.4.

check.php :

ioncube=ok os= phpVersion=5.2.4 mbstring=ok zlib=ok session=ok dom=ok domxml_xslt=ok sqlite=2.8.17 sqliteEncoding=UTF-8 gd_png=ok gd_gif=ok gd_jpg=ok gd_wbmp=ok gd=2.0.34 safe_mode=ok mail=ok curl=ok serverApi=Apache Handler folder_permissions_data=fail

Any ideas ?

It may be that the error above that is show on the published site is not related to Sitebuilder at all but apache on the publishing server.

The error may be caused by lacking of file descriptors, it is 1024 of them are compiled by default and apache may exceed the limit and cause Segmentation fault error. Check number of used file descriptors by parent apache process:

~# ps axf | grep httpd | grep -v grep
30886 ? Ss 0:01 /usr/sbin/httpd
31051 ? S 0:00 \_ /usr/sbin/httpd
680 ? S 0:01 \_ /usr/sbin/httpd
748 ? S 0:00 \_ /usr/sbin/httpd
785 ? S 0:00 \_ /usr/sbin/httpd
~# ls /proc/30886/fd/ | wc -l
32
~#

If number of used file descriptors is about or more then 1024, you should recompile apache with increased number. Please refer to this Kb article for details about recompilation: http://kb.odin.com/en/260, it is related to apache on Plesk Control Panel server, but I hope it may help you.

By the way is there Plesk Control Panel running on the publishing server?

 

[abezborodova]

I am getting problems "blank pages" in SB modules as well. Safari reports the server suddenly dropped the connection. In other browsers I just get a blank page. Does not happen all the time, but it happens often (about half the time or 3/4 the time). More often than my customers like.

Please check number of file descriptors used on the publishing server and let us know what you get. Several Sitebuilder modules use PHP, and their execution may cause Segmentation fault (11) or blank pages. Try enabling display_errors in PHP configuration to see the error instead of the blank page.

 

[swopedesign]

Do not understand "# of file descriptors"

I do not understand the request to report the # of file descriptors. Please explain.

 

[swopedesign]

I wasn't clear

I wasn't clear. It may make a difference. Firefox, instead of loading a blank page in the modules, wants to DOWNLOAD the PHP page! The result is a blank file (empty).

 

[swopedesign]

PHP errors - none

I've turned on display_errors in a .htaccess file, but no errors are displayed. Even the downloaded file does not have errors listed. It is blank.

 

[abezborodova]

I do not understand the request to report the # of file descriptors. Please explain.

Please see my reply to Dupont provided earlier today.

 

[swopedesign]

File Descriptors OK

The File descriptors are fine at this time.
entered into VE 727
-bash-3.00# ps axf | grep httpd | grep -v grep
23923 ? Ss 0:20 /usr/sbin/httpd
25948 ? S 0:00 \_ /usr/sbin/httpd
23959 ? S 0:12 \_ /usr/sbin/httpd
24068 ? S 0:11 \_ /usr/sbin/httpd
24358 ? S 0:07 \_ /usr/sbin/httpd
24362 ? S 0:11 \_ /usr/sbin/httpd
24371 ? S 0:11 \_ /usr/sbin/httpd
24373 ? S 0:16 \_ /usr/sbin/httpd
26339 ? S 0:08 \_ /usr/sbin/httpd
1740 ? S 0:07 \_ /usr/sbin/httpd
1745 ? S 0:08 \_ /usr/sbin/httpd
-bash-3.00# ls /proc/23923/fd/ | wc -l
134

This is the response I received from my server admin.

We are indeed using Plesk. We are currently on PHP 5.0.4, and will be upgrading PHP 5.1.6 to try to solve this problem. Is this the correct next step?

 

[abezborodova]

I do not think PHP update may resolve the problem, however who knows..
I advise you to contact Parallels support (http://www.parallels.com/en/support/sitebuilder) to have them login to the server, investigate the problem and provide a solution.

 

[Mike Wendricks]

how to fix this?

Since day 1 our sitebuilder is doing the same thing and customers haven't been able to use the modules without crashing. Can someone at Parallels please contact me so we can have this resolved?

Thank you!

 

[JustinR]

See this KB article:
http://kb.odin.com/en/5244

After downloading the latest ioncube loader for my version of PHP, everything worked just fine for me.