0.11.x gives 500 - Internal Server Error

[2ge@…]

Hi,

we upgraded Trac from 0.10.x (worked OK) to 0.11.x and after some time we have on website "500 - Internal Server Error" - this happens on 2 of our webservers. Problem is, I cannot reproduce this and I don't know why it happens, after restarting webserver it works for some time. Here is the information:

Trac: 0.11.1 OS: FreeBSD 7.0-STABLE Webserver: lighttpd/1.4.19 Python: Python 2.5.2 DB: database = ​sqlite:db/trac.db

Setup of Trac is pretty usual, no hacks, no extra plugins. I also view access log, tried last functional URL before 500…I cannot reproduce problem.

Last lines from log:

2008-08-15 19:09:01,503 Trac[main] DEBUG: Dispatching <Request "GET u'/wiki/DevReadFirst'">
2008-08-15 19:09:01,511 Trac[chrome] DEBUG: Prepare chrome data for request
2008-08-15 19:09:01,512 Trac[perm] DEBUG: No policy allowed anonymous performing TICKET_CREATE on None
2008-08-15 19:09:01,512 Trac[perm] DEBUG: No policy allowed anonymous performing TRAC_ADMIN on None
2008-08-15 19:09:01,512 Trac[perm] DEBUG: No policy allowed anonymous performing PERMISSION_GRANT on None
2008-08-15 19:09:01,512 Trac[perm] DEBUG: No policy allowed anonymous performing PERMISSION_REVOKE on None
2008-08-15 19:09:01,513 Trac[perm] DEBUG: No policy allowed anonymous performing TICKET_ADMIN on None
2008-08-15 19:09:01,521 Trac[perm] DEBUG: No policy allowed anonymous performing EMAIL_VIEW on None
2008-08-15 19:09:01,630 Trac[perm] DEBUG: No policy allowed anonymous performing WIKI_DELETE on <Resource u'wiki:DevReadFirst@1'>
2008-08-15 19:09:01,678 Trac[main] DEBUG: 453 unreachable objects found.

Lighttpd config

# lighttpd

$HTTP["host"] =~ "^trac.opensubtitles.org" {

   server.errorlog = "/var/log/httpd/trac.opensubtitles.org-error.log"
   accesslog.filename = "/var/log/httpd/trac.opensubtitles.org-access.log"

   url.redirect = ( "^/trac" => "/projects",
         "^/$" => "/projects"
   )

   fastcgi.debug = 1

   fastcgi.server = ("/projects" =>
         ("opensubtitles" =>
          ("socket" => "/tmp/trac-fastcgi.sock",
           "bin-path" => "/usr/local/share/trac/cgi-bin/trac.fcgi",
           "check-local" => "disable",
           "bin-environment" =>
           (
            "TRAC_ENV_PARENT_DIR" => "/data/www/trac.opensubtitles.org/",
            "TRAC_ENV_INDEX_TEMPLATE" => "/data/www/trac.opensubtitles.org/index.html"
           )
          )
         )
    )

   auth.backend = "htpasswd"
   auth.backend.htpasswd.userfile = "/data/www/trac.opensubtitles.org/trac.pass"
   $HTTP["url"] =~ "^/projects/?.*/login$" {
      auth.require = ("/" =>
            (
             "method"  => "basic",
             "realm"   => "trac",
             "require" => "valid-user"
            )
      )
   }
}

[Noah Kantrowitz]

The important log would be the lighty error log, not Trac's.

[2ge@…]

lighttpd error log is empty:

-rw-r--r--  1 www   www          0 Jul 24 16:31 trac.opensubtitles.org-error.log

[2ge@…]

which information you need more, so somebody can help me, please?

[2ge@…]

it is _VERY_ important in which order are lighttpd modules loaded. Put modules in right order (lighttpd default). This helps me, so trac works now (it seems so).

server.modules              = (
                              "mod_rewrite",
                              "mod_redirect",
                               "mod_alias",
                                "mod_access",
#                               "mod_cml",
#                               "mod_trigger_b4_dl",
                                "mod_auth",
                               "mod_status",
                               "mod_setenv",
                               "mod_fastcgi",
#                               "mod_proxy",
#                               "mod_simple_vhost",
#                               "mod_evhost",
#                               "mod_userdir",
                               "mod_cgi",
                               "mod_compress",
#                               "mod_ssi",
#                               "mod_usertrack",
                               "mod_expire",
#                               "mod_secdownload",
                               "mod_rrdtool",
                                "mod_accesslog" )

[ebray]

This should probably be closed as 'worksforme' as there was no fault of Trac's here.