Bug 478454 - undefined symbol: proxy_module
Summary: undefined symbol: proxy_module
Alias: None
Product: Fedora
Classification: Fedora
Component: httpd
Version: 11
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Joe Orton
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2008-12-30 13:04 UTC by Jeroen van Meeuwen
Modified: 2010-06-28 11:03 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-06-28 11:03:01 UTC
Type: ---

Attachments (Terms of Use)

Description Jeroen van Meeuwen 2008-12-30 13:04:27 UTC
Description of problem:

proxy_module being loaded into httpd is a prerequisite for proxy_ajp to work. However, the /etc/httpd/conf.d/proxy_ajp.conf file does not check whether the proxy module has been loaded.

Not every setup needs the proxy_module to be loaded, along with maybe dozens of other modules that are loaded by default.

In managed environments, updated httpd packages will put back the /etc/httpd/conf.d/proxy_ajp.conf file, leaving httpd unable to restart if not also proxy_module is loaded:

Starting httpd: httpd: Syntax error on line 35 of /etc/httpd/conf/httpd.conf: Syntax error on line 2 of /etc/httpd/conf.d/proxy_ajp.conf: Cannot load /etc/httpd/modules/mod_proxy_ajp.so into server: /etc/httpd/modules/mod_proxy_ajp.so: undefined symbol: proxy_module

Version-Release number of selected component (if applicable):


How reproducible:

Steps to Reproduce:
1. Manage /etc/httpd/ with (for example) puppet
Actual results:

proxy_ajp.conf prevents httpd from restarting properly, if proxy_module isn't loaded into httpd.

Expected results:

Either one of two:

1) proxy_ajp.conf loads mod_proxy if not already loaded:

<IfModule !mod_proxy.c>
    LoadModule proxy_module modules/mod_proxy.so

LoadModule proxy_ajp_module modules/mod_proxy_ajp.so

2) mod_proxy_ajp.so is loaded only if proxy_module has been loaded:

<ifModule mod_proxy.c>
    LoadModule proxy_ajp_module modules/mod_proxy_ajp.so

Additional info:

Option 2) is only valid if and when the proxy_module has already been loaded by the time proxy_ajp.conf is parsed, so option 1) is the most feasible IMO.

Comment 1 Bug Zapper 2009-06-09 10:32:56 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle.
Changing version to '11'.

More information and reason for this action is here:

Comment 2 Bug Zapper 2010-04-27 12:39:39 UTC
This message is a reminder that Fedora 11 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 11.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '11'.

Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora version prior to Fedora 11's end of life.

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Comment 3 Bug Zapper 2010-06-28 11:03:01 UTC
Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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