can't get rails app to run with lsapi

Discussion in 'Ruby/Rails' started by Shelby, Aug 6, 2006.

  1. Shelby

    Shelby New Member

    Hello. I am trying to get a rails app to run with lsapi as described in the litespeed wiki:
    http://litespeedtech.com/community/wiki/doku.php?id=litespeed_wiki:ruby_rails

    When I try to run the app, I continually get a 503 Service Unavailable error.

    Below I have listed everything I did in the install, and my configuration, as well as the errors from the log. I tried to follow the instructions precisely, but I cannot make it work. Can anyone help?

    Thanks, Shelby
    _________________________________________________

    I am running Litespeed 2.1.18 std on Linux. It serves static pages fine.
    I installed mysql, created the database, and set database.yaml in the rails app with the correct user name and password. I can use rake migrate successfully to create the tables, so I know that the database connection works.

    I have installed ruby and rails. I have installed litespeed ruby lsapi via
    gem install ruby-lsapi. I copied the dispatch.lsapi into my rails public directory and made it executable. All the files in the rails app are readable by the server. In order to try and keep it simple, I am setting it up to run only one rails app for this virtual host.

    I created a virtual host just for this web app. its config:
    virtual host root: /absolute/path/to/railsapp/ (note - directory above public)
    config file: /absolute/path/to/railsapp/config.xml
    enable script: yes
    restrained: no
    GENERAL TAB
    document root: /absolute/path/to/railsapp/public/
    enable gzip: yes
    customized error pages: 404 not found -- /dispatch.lsapi
    EXTERNAL APPS
    I created a lsapi app...
    name: RubyRailsLSAPI
    address: uds://tmp/lshttpd/rubyrailslsapi.sock
    max connections: 10
    environment:RAILS_ENV=production
    LSAPI_CHILDREN=10
    initial request timeout: 5
    retry timeout: 5
    persistent connection: yes
    response buffering: no
    command: /absolute/path/to/railsapp/public/dispatch.lsapi
    CONTEXT
    I created a LiteSpeedAPI context
    URI: /dispatch.lsapi
    LSAPI App: [VHostLevel] RubyRailsLSAPI

    other than these settings, I left everything else blank.
    I saved everything and restarted the server. I try to access the railsapp like this:
    http://test.virtualhostname.org/login/login
    and receive a 503 service unavailable error
    Here is what my log shows:

    2006-08-05 23:59:57.674 INFO [192.168.0.101:57801-0#mta_pmta] File not found [/absolute/path/to/railsapp/public/login/login]
    2006-08-05 23:59:57.675 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!
    2006-08-05 23:59:57.676 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!
    2006-08-05 23:59:57.676 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!

    It seems to be looking for an actual file at the URL, rather than executing the rails application at that controller and method.

    Note that this webapp does run fine on my development machine under webrick with the url:
    http://127.0.0.1/login/login
  2. mistwang

    mistwang LiteSpeed Staff

    Something wrong with the dispatch.lsapi, can you run it from command line?
  3. Shelby

    Shelby New Member

    dispatch.lsapi

    I tried to run dispatch.lsapi from the command line. The first thing I realized is that dispatch.lsapi expects ruby to be in /usr/local..., but mine is in /usr, so I fixed that.

    Then I ran it again, and I got this error, which I do not understand:
    /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require': no such file to load -- lsapi (MissingSourceFile)
    from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    from /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in `require'
    from ./dispatch.lsapi:8

    Pretty puzzled about what this means...

    Thanks for your help.
    Shelby
  4. Shelby

    Shelby New Member

    a bit of progress

    I installed the ruby-lsapi by hand - downloaded version 1.4 and installed the tar.gz file manually.

    Now when I run the dispatch.lsapi from the command line, the error in the above message is gone, and I see in the terminal:
    /usr/local/lib/site_ruby/1.8/i486-linux/lsapi.so: warning: already initialized constant ENV

    that looks better...

    However, after a server restart, I still get a 503 error page and this in the logs:

    2006-08-06 16:22:57.335 INFO [192.168.0.101:58535-0#mta_pmta] File not found [/absolute/path/to/railsapp/public/login/login]
    2006-08-06 16:22:57.335 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!
    2006-08-06 16:22:57.336 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!
    2006-08-06 16:22:57.336 INFO [uds://tmp/lshttpd/rubyrailslsapi.sock] Connection refused, restart!

    Still wondering what is wrong...

    Shelby
  5. mistwang

    mistwang LiteSpeed Staff

    At least, dispatch.lsapi works properly now. :)
    The "File not found" error is normal.
    Have you set "Auto Start" to "yes" for the "RubyRailsLSAPI" application?
    Your "initial request timeout" should be increased, maybe like "60".
    Please check if the file "/tmp/lshttpd/rubyrailslsapi.sock" exists, do "ps -ef | grep ruby", see if any ruby instance is running, you should see two at least.
  6. Shelby

    Shelby New Member

    partial success

    I think I did not know to turn on auto start. Now I can bring up the first web page of my site, which is a login page.

    I changed the Rails environment in the server to development, so I could see the error messages...

    There is some kind of problem with the routing of forms. When I submit a form, I get this:
    Routing Error
    Recognition failed for "/dispatch.lsapi"

    Regular links seem to work correctly. For example, the opening login form fails with the above Routing Error. However, if I "fake it" by submitting a URL with the form attributes in the URL, like...
    http://test.site.com/login/process_login?login=me&password=test
    then the login works fine. So something is wrong with form posts and the dispatch.lsapi. What could this be?

    Running the app on the same machine under webrick works fine...
    Thanks for your help...
    Shelby
  7. mistwang

    mistwang LiteSpeed Staff

    the 404 handler in lsws-2.1.18 cannot process post request properly, will be fixed in 2.1.19, please use rewrite rules to dispatch request to rails, for now.
  8. Shelby

    Shelby New Member

    success

    I removed the custom 404 handler, and added the rewrite rules, and it works. Thanks so much for all your help.

    Shelby

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