Fedora directory users - Mar 2009 - /usr/lib64/dirsrv/modules/mod_admserv.so will not load

I have successfully installed Fedora Directory server on an x86_64
machine running CentOS 5.  Everything works except for the Admin
Server.  When I attempt to start it the apache module fails to load:

/usr/lib64/dirsrv/modules/mod_admserv.so
[Mon Mar 23 16:06:44 2009] [error] This module only supports the threaded MPM

Can anyone shed some light on this error?  I googled and looked
through the mailing list archives but did not find anything to
specifically address this problem

Thanks

Sean

Edit /etc/sysconfig/httpd and find the line that says httpd.worker.
Uncomment that and then try and start the Admin server.

Apache by default uses prefork in Centos/RHEL/Fedora.

Beward that unless php (if you''re using it) was compiled for threads,
it
will not work with httpd.worker on Centos w/ Apache 2.0.x/2.2.x.

Ryan Manikowski | System Administrator


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Sean Carolan wrote:
> I have successfully installed Fedora Directory server on an x86_64
> machine running CentOS 5.  Everything works except for the Admin
> Server.  When I attempt to start it the apache module fails to load:
>
> /usr/lib64/dirsrv/modules/mod_admserv.so
> [Mon Mar 23 16:06:44 2009] [error] This module only supports the threaded
MPM
>
> Can anyone shed some light on this error?  I googled and looked
> through the mailing list archives but did not find anything to
> specifically address this problem
>
> Thanks
>
> Sean
>
> --
> Fedora-directory-users mailing list
> Fedora-directory-users@redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>
>
>

> Beward that unless php (if you''re using it) was compiled for
threads, it
> will not work with httpd.worker on Centos w/ Apache 2.0.x/2.2.x.
Indeed:

[Mon Mar 23 16:24:22 2009] [crit] Apache is running a threaded MPM,
but your PHP Module is not compiled to be threadsafe.  You need to
recompile PHP.
Pre-configuration failed

I tried removing PHP and unfortunately it still doesn''t work.  Running
httpd.worker from the command line produces this:

[root@newldap6 ~]# /usr/sbin/httpd.worker -k start -f
/etc/dirsrv/admin-serv/httpd.conf
Segmentation fault

Could this be because of the 64 bit OS?

Sean Carolan wrote:
>> Beward that unless php (if you''re using it) was compiled for
threads, it
>> will not work with httpd.worker on Centos w/ Apache 2.0.x/2.2.x.
>>     
>
> Indeed:
>
> [Mon Mar 23 16:24:22 2009] [crit] Apache is running a threaded MPM,
> but your PHP Module is not compiled to be threadsafe.  You need to
> recompile PHP.
> Pre-configuration failed
>
> I tried removing PHP and unfortunately it still doesn''t work. 
Running
> httpd.worker from the command line produces this:
>
> [root@newldap6 ~]# /usr/sbin/httpd.worker -k start -f
> /etc/dirsrv/admin-serv/httpd.conf
> Segmentation fault
>
> Could this be because of the 64 bit OS?
>   
No.  Fedora DS admin server will only work with httpd.worker.  It uses 
its own special httpd.conf file and other config files - it does not use 
/etc/httpd config files.
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> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>

> No.  Fedora DS admin server will only work with httpd.worker.  It uses its
> own special httpd.conf file and other config files - it does not use
> /etc/httpd config files.
Ok, I understand all that.  But the initialization script fails with
no useful error message, just an exit status of "1".  How can I
continue to troubleshoot this to find the problem?

Sean Carolan wrote:
>> No.  Fedora DS admin server will only work with httpd.worker.  It uses
its
>> own special httpd.conf file and other config files - it does not use
>> /etc/httpd config files.
>>     
>
> Ok, I understand all that.  But the initialization script fails with
> no useful error message, just an exit status of "1".  How can I
> continue to troubleshoot this to find the problem?
>   
You cannot run setup-ds-admin.pl again - you have to start with a 
completely clean system.
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> Fedora-directory-users@redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>

> You cannot run setup-ds-admin.pl again - you have to start with a
completely
> clean system.
I wasn''t talking about the setup-ds-admin.pl script.  I was referring
to /etc/init.d/dirsrv-admin, which simply fails with no error message.
 I followed the installation instructions here:

http://directory.fedoraproject.org/wiki/Download#Enterprise_Linux_5

As I mentioned before, the LDAP server is working great, but the
dirsrv-admin is not.

Sean Carolan wrote:
>> You cannot run setup-ds-admin.pl again - you have to start with a
completely
>> clean system.
>>     
>
> I wasn''t talking about the setup-ds-admin.pl script.  I was
referring
> to /etc/init.d/dirsrv-admin, which simply fails with no error message.
>  I followed the installation instructions here:
>
> http://directory.fedoraproject.org/wiki/Download#Enterprise_Linux_5
>
> As I mentioned before, the LDAP server is working great, but the
> dirsrv-admin is not.
>   
Does /usr/sbin/start-ds-admin work?
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> Fedora-directory-users@redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>

> Does /usr/sbin/start-ds-admin work?
>>
Nope:

[scarolan@newldap6 ~]$ sudo /usr/sbin/start-ds-admin
[scarolan@newldap6 ~]$ echo $?
1

Sean Carolan wrote:
>> Does /usr/sbin/start-ds-admin work?
>>     
>
> Nope:
>
> [scarolan@newldap6 ~]$ sudo /usr/sbin/start-ds-admin
> [scarolan@newldap6 ~]$ echo $?
>   
What''s in /var/log/dirsrv/admin-serv/error?
> 1
>
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> Fedora-directory-users@redhat.com
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>

> What''s in /var/log/dirsrv/admin-serv/error?
I get this:

[Wed Mar 25 14:41:21 2009] [crit] do_admserv_post_config(): unable to
create AdmldapInfo
Configuration Failed
[Wed Mar 25 14:41:21 2009] [error] NSS_Shutdown failed: -8038

Is it unable to create a file somewhere?

Sean Carolan wrote:
>> What''s in /var/log/dirsrv/admin-serv/error?
>>     
>
> I get this:
>
> [Wed Mar 25 14:41:21 2009] [crit] do_admserv_post_config(): unable to
> create AdmldapInfo
> Configuration Failed
> [Wed Mar 25 14:41:21 2009] [error] NSS_Shutdown failed: -8038
>
> Is it unable to create a file somewhere?
>   
grep \^User /etc/dirsrv/admin-serv/console.conf
ls -al /etc/dirsrv/admin-serv
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>

> grep \^User /etc/dirsrv/admin-serv/console.conf
> ls -al /etc/dirsrv/admin-serv
Ok, I think we are on the right track, thank you for pointing out this
config file.

[scarolan@newldap6 ~]$ grep \^User /etc/dirsrv/admin-serv/console.conf
User nobody
[scarolan@newldap6 ~]$ ls -al /etc/dirsrv/admin-serv
total 56
drwxr-xr-x 2 root root  4096 Mar 23 16:21 .
drwxrwxr-x 7 root ldap  4096 Mar 23 15:49 ..
-rw-r--r-- 1 root root  3984 Mar 23 15:29 adm.conf
-rw-r--r-- 1 root root  3984 Sep  4  2008 admserv.conf
-rw-r--r-- 1 root root  4033 Sep  4  2008 console.conf
-rw-r--r-- 1 root root 27000 Sep  4  2008 httpd.conf
-rw-r--r-- 1 root root  4548 Sep  4  2008 nss.conf

The username we used to install FDS was "ldap" instead of
"nobody".
What should the settings be to enable the server to start?

Sean Carolan wrote:
>> grep \^User /etc/dirsrv/admin-serv/console.conf
>> ls -al /etc/dirsrv/admin-serv
>>     
>
> Ok, I think we are on the right track, thank you for pointing out this
> config file.
>
> [scarolan@newldap6 ~]$ grep \^User /etc/dirsrv/admin-serv/console.conf
> User nobody
> [scarolan@newldap6 ~]$ ls -al /etc/dirsrv/admin-serv
> total 56
> drwxr-xr-x 2 root root  4096 Mar 23 16:21 .
> drwxrwxr-x 7 root ldap  4096 Mar 23 15:49 ..
> -rw-r--r-- 1 root root  3984 Mar 23 15:29 adm.conf
> -rw-r--r-- 1 root root  3984 Sep  4  2008 admserv.conf
> -rw-r--r-- 1 root root  4033 Sep  4  2008 console.conf
> -rw-r--r-- 1 root root 27000 Sep  4  2008 httpd.conf
> -rw-r--r-- 1 root root  4548 Sep  4  2008 nss.conf
>
> The username we used to install FDS was "ldap" instead of
"nobody".
>   
Did the user "ldap" exist before you ran the setup
script?
> What should the settings be to enable the server to start?
>   
Looks like something went wrong in setup, and it just ignored "ldap"
and
used the default "nobody".   The config is pretty well hosed now and 
you''re best off by just starting over.
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>