Error 503 on Apache - Failed to connect to mod-mono-server after several attempts to spawn the process

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Error 503 on Apache - Failed to connect to mod-mono-server after several attempts to spawn the process

by g18c :: Rate this Message:

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Hi, I have a CentOS 5.2 box running Apache 2.2 (which is tested and serving plain html ok). I have tried to compile Mono from source, everything compiled ok and seemed to install into the right paths. However when i try and run the test scripts (copied from /opt/mono/lib/xsp/test to my httpd files directory /var/www/html/) i get the following error page when ever I access the webserver:

Error 503 - Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.


--------------------------------------------------------------------------------

Apache/2.2.3 (CentOS) Server at 192.168.2.50 Port 80


The apache error log is as follows:

#cat /var/log/http/error_log
[Tue Jul 15 15:18:08 2008] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Tue Jul 15 15:18:41 2008] [error] Failed to connect to mod-mono-server after several attempts to spawn the process.


To compile the source I performed the following steps:

cd ~

yum install httpd build-essential gcc bzip bison pkgconfig glib-devel glib2-devel \
   httpd-devel libpng-devel libX11-devel freetype fontconfig pango-devel ruby ruby-rdoc \
   gtkhtml38-devel wget

export PKG_CONFIG_PATH=/usr/lib/pkgconfig/:/opt/mono/lib/pkgconfig/:/usr/lib/

wget http://go-mono.com/sources/mono/mono-1.9.tar.bz2
wget http://go-mono.com/sources/libgdiplus/libgdiplus-1.9.tar.bz2
wget http://go-mono.com/sources/xsp/xsp-1.9.tar.bz2
wget http://go-mono.com/sources/mod_mono/mod_mono-1.9.tar.bz2

tar xf mono-1.9.tar.bz2
tar xf xsp-1.9.tar.bz2
tar xf mod_mono-1.2.4.tar.bz2
tar xf libgdiplus-1.9.tar.bz2

cd ~/mono-1.9
./configure --prefix=/opt/mono
make; make install

export PATH=/opt/mono/bin:$PATH
cd ~/xsp-1.9
./configure --prefix=/opt/mono
make; make install

cd ~/mod_mono-1.9
./configure --prefix=/opt/mono --with-mono-prefix=/opt/mono --with-apr-config=/usr/lib/httpd/modules
make; make install

cd ~/libgdiplus-1.9
./configure
make; make install


Directory contents are as follows:


[root@support httpd]# ls /opt/mono/bin/
al                    mono-api-info
al2                   mono-api-info2
asp-state             monodis
asp-state2            mono-find-provides
caspol                mono-find-requires
cert2spc              monograph
certmgr               monolinker
chktrust              monop
cilc                  monop2
dbsessmgr             mono-service
dbsessmgr2            mono-service2
disco                 mono-shlib-cop
dtd2rng               mono-test-install
dtd2xsd               mono-xmltool
fastcgi-mono-server   mozroots
fastcgi-mono-server2  nunit-console
gacutil               nunit-console2
genxs                 pedump
gmcs                  permview
httpcfg               prj2make
ilasm                 resgen
ilasm2                resgen2
installvst            secutil
jay                   setreg
macpack               sgen
makecert              signcode
mbas                  smcs
mconfig               sn
mcs                   soapsuds
mjs                   sqlsharp
mkbundle              wsdl
mkbundle2             wsdl2
mod-mono-server       xbuild
mod-mono-server2      xsd
mono                  xsp
mono-api-diff         xsp2

[root@support httpd]# ls /opt/mono/lib/
libgdiplus.a             libmono-profiler-aot.so.0
libgdiplus.la            libmono-profiler-aot.so.0.0.0
libgdiplus.so            libmono-profiler-cov.a
libgdiplus.so.0          libmono-profiler-cov.la
libgdiplus.so.0.0.0      libmono-profiler-cov.so
libikvm-native.a         libmono-profiler-cov.so.0
libikvm-native.la        libmono-profiler-cov.so.0.0.0
libikvm-native.so        libmono.so
libmono.a                libmono.so.0
libmono.la               libmono.so.0.0.0
libMonoPosixHelper.a     libMonoSupportW.a
libMonoPosixHelper.la    libMonoSupportW.la
libMonoPosixHelper.so    libMonoSupportW.so
libmono-profiler-aot.a   mono
libmono-profiler-aot.la  pkgconfig
libmono-profiler-aot.so  xsp

[root@support conf]# ls /usr/lib/httpd/modules/
libphp5.so              mod_file_cache.so
mod_actions.so          mod_filter.so
mod_alias.so            mod_headers.so
mod_asis.so             mod_ident.so
mod_auth_basic.so       mod_imagemap.so
mod_auth_digest.so      mod_include.so
mod_authn_alias.so      mod_info.so
mod_authn_anon.so       mod_ldap.so
mod_authn_dbd.so        mod_log_config.so
mod_authn_dbm.so        mod_log_forensic.so
mod_authn_default.so    mod_logio.so
mod_authn_file.so       mod_mem_cache.so
mod_authnz_ldap.so      mod_mime_magic.so
mod_authz_dbm.so        mod_mime.so
mod_authz_default.so    mod_mono.so
mod_authz_groupfile.so  mod_mono.so.0.0.0
mod_authz_host.so       mod_negotiation.so
mod_authz_owner.so      mod_proxy_ajp.so
mod_authz_user.so       mod_proxy_balancer.so
mod_autoindex.so        mod_proxy_connect.so
mod_cache.so            mod_proxy_ftp.so
mod_cern_meta.so        mod_proxy_http.so
mod_cgid.so             mod_proxy.so
mod_cgi.so              mod_rewrite.so
mod_dav_fs.so           mod_setenvif.so
mod_dav.so              mod_speling.so
mod_dbd.so              mod_status.so
mod_deflate.so          mod_suexec.so
mod_dir.so              mod_unique_id.so
mod_disk_cache.so       mod_userdir.so
mod_dumpio.so           mod_usertrack.so
mod_env.so              mod_version.so
mod_expires.so          mod_vhost_alias.so
mod_ext_filter.so



And my configuration files are as follows:


[root@support httpd]# ls /etc/httpd/conf/mod_mono.conf
<IfModule !mod_mono.c>
    LoadModule mono_module /usr/lib/httpd/modules/mod_mono.so

    AddType application/x-asp-net .aspx
    AddType application/x-asp-net .asmx
    AddType application/x-asp-net .ashx
    AddType application/x-asp-net .asax
    AddType application/x-asp-net .ascx
    AddType application/x-asp-net .soap
    AddType application/x-asp-net .rem
    AddType application/x-asp-net .axd
    AddType application/x-asp-net .cs
    AddType application/x-asp-net .config
    AddType application/x-asp-net .Config
    AddType application/x-asp-net .dll
    DirectoryIndex index.aspx
    DirectoryIndex Default.aspx
    DirectoryIndex default.aspx
</IfModule>


[root@support httpd]# ls /etc/httpd/conf/httpd.conf
# This is the main Apache server configuration file.  It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.2/> for detailed information.
# In particular, see
# <URL:http://httpd.apache.org/docs/2.2/mod/directives.html>
# for a discussion of each configuration directive.
### Section 1: Global Environment

ServerTokens OS
ServerRoot "/etc/httpd"

PidFile run/httpd.pid
Timeout 120
KeepAlive Off
MaxKeepAliveRequests 100
KeepAliveTimeout 15

<IfModule prefork.c>
StartServers       8
MinSpareServers    5
MaxSpareServers   20
ServerLimit      256
MaxClients       256
MaxRequestsPerChild  4000
</IfModule>

<IfModule worker.c>
StartServers         2
MaxClients         150
MinSpareThreads     25
MaxSpareThreads     75
ThreadsPerChild     25
MaxRequestsPerChild  0
</IfModule>

Listen 80

LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule auth_digest_module modules/mod_auth_digest.so
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule authn_alias_module modules/mod_authn_alias.so
LoadModule authn_anon_module modules/mod_authn_anon.so
LoadModule authn_dbm_module modules/mod_authn_dbm.so
LoadModule authn_default_module modules/mod_authn_default.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule authz_owner_module modules/mod_authz_owner.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_dbm_module modules/mod_authz_dbm.so
LoadModule authz_default_module modules/mod_authz_default.so
LoadModule ldap_module modules/mod_ldap.so
LoadModule authnz_ldap_module modules/mod_authnz_ldap.so
LoadModule include_module modules/mod_include.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
LoadModule ext_filter_module modules/mod_ext_filter.so
LoadModule mime_magic_module modules/mod_mime_magic.so
LoadModule expires_module modules/mod_expires.so
LoadModule deflate_module modules/mod_deflate.so
LoadModule headers_module modules/mod_headers.so
LoadModule usertrack_module modules/mod_usertrack.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule mime_module modules/mod_mime.so
LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
LoadModule info_module modules/mod_info.so
LoadModule dav_fs_module modules/mod_dav_fs.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
LoadModule actions_module modules/mod_actions.so
LoadModule speling_module modules/mod_speling.so
LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule cache_module modules/mod_cache.so
LoadModule suexec_module modules/mod_suexec.so
LoadModule disk_cache_module modules/mod_disk_cache.so
LoadModule file_cache_module modules/mod_file_cache.so
LoadModule mem_cache_module modules/mod_mem_cache.so
LoadModule cgi_module modules/mod_cgi.so
LoadModule version_module modules/mod_version.so
#LoadModule cern_meta_module modules/mod_cern_meta.so
#LoadModule asis_module modules/mod_asis.so

# Load config files from the config directory "/etc/httpd/conf.d".
Include conf.d/*.conf
Include /etc/httpd/conf/mod_mono.conf

#ExtendedStatus On


User apache
Group apache

### Section 2: 'Main' server configuration

ServerAdmin root@localhost


ServerName support.mydomain.com:80

UseCanonicalName Off

DocumentRoot "/var/www/html"

<Directory />
    Options FollowSymLinks
    AllowOverride None
</Directory>

<Directory "/var/www/html">
    Options Indexes FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
</Directory>


<IfModule mod_userdir.c>
    UserDir public_html
</IfModule>


DirectoryIndex index.html index.html.var

AccessFileName .htaccess

<Files ~ "^\.ht">
    Order allow,deny
    Deny from all
</Files>


TypesConfig /etc/mime.types


DefaultType text/plain

<IfModule mod_mime_magic.c>
#   MIMEMagicFile /usr/share/magic.mime
    MIMEMagicFile conf/magic
</IfModule>


HostnameLookups Off

#EnableMMAP off
#EnableSendfile off
ErrorLog logs/error_log
LogLevel warn

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent


CustomLog logs/access_log combined

ServerSignature On

Alias /icons/ "/var/www/icons/"

<Directory "/var/www/icons">
    Options Indexes MultiViews
    AllowOverride None
    Order allow,deny
    Allow from all
</Directory>

#
# WebDAV module configuration section.
#
<IfModule mod_dav_fs.c>
    # Location of the WebDAV lock database.
    DAVLockDB /var/lib/dav/lockdb
</IfModule>

ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"

<Directory "/var/www/cgi-bin">
    AllowOverride None
    Options None
    Order allow,deny
    Allow from all
</Directory>

IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t

AddLanguage en .en
ForceLanguagePriority Prefer Fallback
AddDefaultCharset UTF-8


AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz


#AddHandler cgi-script .cgi
#AddHandler send-as-is asis
AddHandler type-map var
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml


Alias /error/ "/var/www/error/"

<IfModule mod_negotiation.c>
<IfModule mod_include.c>
    <Directory "/var/www/error">
        AllowOverride None
        Options IncludesNoExec
        AddOutputFilter Includes html
        AddHandler type-map var
        Order allow,deny
        Allow from all
        LanguagePriority en es de fr
        ForceLanguagePriority Prefer Fallback
    </Directory>
</IfModule>
</IfModule>

# The following directives modify normal HTTP response behavior to
# handle known problems with browser implementations.
BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0
BrowserMatch "RealPlayer 4\.0" force-response-1.0
BrowserMatch "Java/1\.0" force-response-1.0
BrowserMatch "JDK/1\.0" force-response-1.0

BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
BrowserMatch "MS FrontPage" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully
BrowserMatch "^gnome-vfs/1.0" redirect-carefully
BrowserMatch "^XML Spy" redirect-carefully
BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully

### Section 3: Virtual Hosts
#NameVirtualHost *:80
#<VirtualHost *:80>
#    ServerAdmin webmaster@dummy-host.example.com
#    DocumentRoot /www/docs/dummy-host.example.com
#    ServerName dummy-host.example.com
#    ErrorLog logs/dummy-host.example.com-error_log
#    CustomLog logs/dummy-host.example.com-access_log common
#</VirtualHost>



I'm at a loss as to what i have done wrong, spent 4 hours on this and am pulling my hair out! Is there anything obvious I am missing?

Many thanks in advance,

Chris

PS Sorry for the long post

Re: Error 503 on Apache - Failed to connect to mod-mono-server after several attempts to spawn the process

by Marek Habersack-6 :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

On Tue, 15 Jul 2008 12:18:48 -0700 (PDT)
g18c <g18c@...> wrote:

Hello,

> Hi, I have a CentOS 5.2 box running Apache 2.2 (which is tested and serving
> plain html ok). I have tried to compile Mono from source, everything
> compiled ok and seemed to install into the right paths. However when i try
> and run the test scripts (copied from /opt/mono/lib/xsp/test to my httpd
> files directory /var/www/html/) i get the following error page when ever I
> access the webserver:
>
> Error 503 - Service Temporarily Unavailable
> The server is temporarily unable to service your request due to maintenance
> downtime or capacity problems. Please try again later.
[snip]
> I'm at a loss as to what i have done wrong, spent 4 hours on this and am
> pulling my hair out! Is there anything obvious I am missing?
Get the srpm for the mod_mono module, modify the spec file to configure the sources
with --enable-debug. Install the new rpm and run your app - the apache error log
should contain more information. Basically what's happening is that either the
mod-mono-server.exe backend isn't found or that it's failing at the start for some
reason (sigabrt, sigsegv etc). You might want to use the strace tool to attach to
the apache process and have it follow forks (-f or -ff if you want separate files)
to see if the mod-mono-server process is started at all.

best,

marek
_______________________________________________
Mono-list maillist  -  Mono-list@...
http://lists.ximian.com/mailman/listinfo/mono-list

Re: Error 503 on Apache - Failed to connect to mod-mono-server after several attempts to spawn the process

by g18c :: Rate this Message:

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Some parts of this message have been removed. Learn more about Nabble's security policy.
> Get the srpm for the mod_mono module, modify the spec file to configure the sources
> with --enable-debug. Install the new rpm and run your app - the apache error log
> should contain more information. Basically what's happening is that either the
> mod-mono-server.exe backend isn't found or that it's failing at the start for some
> reason (sigabrt, sigsegv etc). You might want to use the strace tool to attach to
> the apache process and have it follow forks (-f or -ff if you want separate files)
> to see if the mod-mono-server process is started at all.

Hi, i rebuilt mod_mono with:
 
# make uninstall; make clean
# ./configure --prefix=/opt/mono --with-mono-prefix=/opt/mono --with-apr-config=/usr/lib/httpd/modules --enable-debug
# make; make install

I now get the following in the error log, however i cant see why it is failing:
 
[root@support httpd]# cat logs/error_log
[Wed Jul 16 03:15:30 2008] [notice] SELinux policy enabled; httpd running as context root:system_r:httpd_t:s0
[Wed Jul 16 03:15:30 2008] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed Jul 16 03:15:30 2008] [warn] creating mono server config
[Wed Jul 16 03:15:30 2008] [warn] Temporarily switching to target uid/gid
[Wed Jul 16 03:15:30 2008] [warn] creating dashboard mutex = /tmp/mod_mono_dashboard_XXGLOBAL_1.lock
[Wed Jul 16 03:15:30 2008] [warn] Requested locking mechanism name: (null)
[Wed Jul 16 03:15:30 2008] [warn] Setting mutex permissions for /tmp/mod_mono_dashboard_XXGLOBAL_1.lock
[Wed Jul 16 03:15:30 2008] [warn] removing dashboard file '/tmp/mod_mono_dashboard_XXGLOBAL_1'
[Wed Jul 16 03:15:30 2008] [warn] creating dashboard '/tmp/mod_mono_dashboard_XXGLOBAL_1'
[Wed Jul 16 03:15:30 2008] [warn] Switching back to root
[Wed Jul 16 03:15:30 2008] [warn] creating dir config for (null)
[Wed Jul 16 03:15:30 2008] [notice] Digest: generating secret for digest authentication ...
[Wed Jul 16 03:15:30 2008] [notice] Digest: done
[Wed Jul 16 03:15:30 2008] [warn] Initializing handler
[Wed Jul 16 03:15:30 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:15:30 2008] [warn] try_connect: -1
[Wed Jul 16 03:15:30 2008] [warn] forking XXGLOBAL
[Wed Jul 16 03:15:30 2008] [warn] Applications: (null)
[Wed Jul 16 03:15:30 2008] [warn] Config file: (null)
[Wed Jul 16 03:15:30 2008] [warn] Config dir.: (null)
[Wed Jul 16 03:15:30 2008] [warn] Listen port: (null)
[Wed Jul 16 03:15:30 2008] [warn] Listen address: (null)
[Wed Jul 16 03:15:30 2008] [warn] switching forked process group to 48
[Wed Jul 16 03:15:30 2008] [warn] switching forked process user to apache
[Wed Jul 16 03:15:30 2008] [warn] child started
[Wed Jul 16 03:15:30 2008] [warn] PATH: /sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:15:30 2008] [warn] serverdir: /opt/mono/bin
[Wed Jul 16 03:15:30 2008] [warn] PATH after: /opt/mono/bin:/sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:15:30 2008] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Wed Jul 16 03:16:05 2008] [warn] config = 0x99bd380
[Wed Jul 16 03:16:05 2008] [warn] dir_config = 0x99bd798
[Wed Jul 16 03:16:05 2008] [warn] idx = -1
[Wed Jul 16 03:16:05 2008] [warn] Alias not found. Checking for auto-applications.
[Wed Jul 16 03:16:05 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:05 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:05 2008] [warn] After setup_socket
[Wed Jul 16 03:16:05 2008] [warn] No backend found, will start a new copy.
[Wed Jul 16 03:16:05 2008] [warn] Acquiring the /tmp/mod_mono_dashboard_XXGLOBAL_1.lock lock for backend start
[Wed Jul 16 03:16:05 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:05 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:05 2008] [warn] forking XXGLOBAL
[Wed Jul 16 03:16:05 2008] [warn] Applications: (null)
[Wed Jul 16 03:16:05 2008] [warn] Config file: (null)
[Wed Jul 16 03:16:05 2008] [warn] Config dir.: (null)
[Wed Jul 16 03:16:05 2008] [warn] Listen port: (null)
[Wed Jul 16 03:16:05 2008] [warn] Listen address: (null)
[Wed Jul 16 03:16:05 2008] [warn] child started
[Wed Jul 16 03:16:05 2008] [warn] PATH: /sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:05 2008] [warn] serverdir: /opt/mono/bin
[Wed Jul 16 03:16:05 2008] [warn] PATH after: /opt/mono/bin:/sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:05 2008] [warn] Started new backend, sleeping 2s to let it configure
[Wed Jul 16 03:16:07 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:07 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:07 2008] [warn] After setup_socket
[Wed Jul 16 03:16:07 2008] [warn] No backend found, will start a new copy.
[Wed Jul 16 03:16:07 2008] [warn] Acquiring the /tmp/mod_mono_dashboard_XXGLOBAL_1.lock lock for backend start
[Wed Jul 16 03:16:07 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:07 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:07 2008] [warn] forking XXGLOBAL
[Wed Jul 16 03:16:07 2008] [warn] Applications: (null)
[Wed Jul 16 03:16:07 2008] [warn] Config file: (null)
[Wed Jul 16 03:16:07 2008] [warn] Config dir.: (null)
[Wed Jul 16 03:16:07 2008] [warn] Listen port: (null)
[Wed Jul 16 03:16:07 2008] [warn] Listen address: (null)
[Wed Jul 16 03:16:07 2008] [warn] child started
[Wed Jul 16 03:16:07 2008] [warn] PATH: /sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:07 2008] [warn] serverdir: /opt/mono/bin
[Wed Jul 16 03:16:07 2008] [warn] PATH after: /opt/mono/bin:/sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:07 2008] [warn] Started new backend, sleeping 2s to let it configure
[Wed Jul 16 03:16:09 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:09 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:09 2008] [warn] After setup_socket
[Wed Jul 16 03:16:09 2008] [warn] No backend found, will start a new copy.
[Wed Jul 16 03:16:09 2008] [warn] Acquiring the /tmp/mod_mono_dashboard_XXGLOBAL_1.lock lock for backend start
[Wed Jul 16 03:16:09 2008] [warn] Socket file name /tmp/mod_mono_server_global
[Wed Jul 16 03:16:09 2008] [warn] try_connect: -1
[Wed Jul 16 03:16:09 2008] [warn] forking XXGLOBAL
[Wed Jul 16 03:16:09 2008] [warn] Applications: (null)
[Wed Jul 16 03:16:09 2008] [warn] Config file: (null)
[Wed Jul 16 03:16:09 2008] [warn] Config dir.: (null)
[Wed Jul 16 03:16:09 2008] [warn] Listen port: (null)
[Wed Jul 16 03:16:09 2008] [warn] Listen address: (null)
[Wed Jul 16 03:16:09 2008] [warn] child started
[Wed Jul 16 03:16:09 2008] [warn] PATH: /sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:09 2008] [warn] serverdir: /opt/mono/bin
[Wed Jul 16 03:16:09 2008] [warn] PATH after: /opt/mono/bin:/sbin:/usr/sbin:/bin:/usr/bin
[Wed Jul 16 03:16:09 2008] [warn] Started new backend, sleeping 2s to let it configure
[Wed Jul 16 03:16:11 2008] [error] Failed to connect to mod-mono-server after several attempts to spawn the process.

Any ideas anyone?
 
Many thanks,
 
Chris


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Re: Error 503 on Apache - Failed to connect to mod-mono-server after several attempts to spawn the process

by Angel Marin-2 :: Rate this Message:

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Chris Morley wrote:

> Hi, i rebuilt mod_mono with:
>  
> # make uninstall; make clean
> # ./configure --prefix=/opt/mono --with-mono-prefix=/opt/mono
> --with-apr-config=/usr/lib/httpd/modules --enable-debug
> # make; make install
>
> I now get the following in the error log, however i cant see why it is
> failing:
>  
> [root@support httpd]# cat logs/error_log
> [Wed Jul 16 03:15:30 2008] [notice] SELinux policy enabled; httpd
> running as context root:system_r:httpd_t:s0

mod_mono & SELinux do not play together with the policy shipped by
CentOS/RHEL 5. Try disabling SELinux before further testing.

--
Angel Marin
http://anmar.eu.org/

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