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Date: Sun, 13 Dec 2009 22:45:18 +0000 (UTC)
From: "Markus (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Subject: [jira] Created: (COUCHDB-598) _show without docid returns 500
 instead of 404
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_show without docid returns 500 instead of 404
----------------------------------------------

                 Key: COUCHDB-598
                 URL: https://issues.apache.org/jira/browse/COUCHDB-598
             Project: CouchDB
          Issue Type: Bug
          Components: HTTP Interface
    Affects Versions: 0.10
         Environment: Ubuntu Karmic
            Reporter: Markus
            Priority: Minor


See also the thread on the mailing list::http://www.mail-archive.com/user@couchdb.apache.org/msg05633.html and especially the following quote from Chris Anderson :" The change would be simple, just remove a catch clause on couch_httpd_show.erl line 81."


Original message below:
------

According to
http://books.couchdb.org/relax/design-documents/shows#Querying%20Show%
20Functions i should receive an HTTP 404 Not Found response, instead i
get a HTTP 500 Internal Server Error. I am unsure as of yet whether i am
doing something wrong or if i should file a bug report for this one.

Here are my two documents in my test database named shows:

{
   "_id": "_design/test",
   "_rev": "1-21a6d69070ae4bec3e9f14fbb7f93201",
   "shows": {
       "summary": "function (doc, req) { return 
'<h1>'+doc.title+'</h1><p>'+doc.body+'</p>'; } "
   }
}

and

{

   "_id": "bd108c433aedaa1bd2def0ec85e59a0d",
   "_rev": "3-5a031adf97aabe4888b9bfb94ba28d13",
   "title": "title",
   "body": "body text"
}


I receive proper results using the following HTTP GET request
http://zealand:5984/shows/_design/test/_show/summary/bd108c433aedaa1bd2def0ec85e59a0d
- code : 200
- body : <h1>title</h1><p>body text</p>

Now consider querying the same show function with a non-existing
document id 
http://zealand:5984/shows/_design/test/_show/summary/404
- code 500
- body {"error":"normal","reason":"{gen_server,call,\n
[couch_query_servers,\n             {ret_proc,{proc,<0.1481.0>,<<
\"javascript\">>,\n
{couch_os_process,prompt},\n
{couch_os_process,set_timeout},\n
{couch_os_process,stop}}}]}"}



Here is the output in the couch.log file:

[Tue, 01 Dec 2009 10:31:37 GMT] [debug] [<0.1594.0>] OAuth Params: []

[Tue, 01 Dec 2009 10:31:37 GMT] [info] [<0.1726.0>] OS Process ::
function raised error: TypeError: doc is null

[Tue, 01 Dec 2009 10:31:37 GMT] [info] [<0.1726.0>] OS Process ::
stacktrace: (null,[object Object])@:0
runShow(function (doc, req) {return "<h1>" + doc.title + "</h1><p>" +
doc.body + "</p>";},null,[object Object],"function (doc, req) { return
'<h1>'+doc.title+'</h1><p>'+doc.body+'</p>'; }
")@/usr/share/couchdb/server/main.js:388
("function (doc, req) { return '<h1>'+doc.title+'</h1><p>'+doc.body
+'</p>'; } ",null,[object Object])@/usr/share/couchdb/server/main.js:358
@/usr/share/couchdb/server/main.js:842


[Tue, 01 Dec 2009 10:31:37 GMT] [error] [<0.1594.0>] OS Process Error ::
{render_error,{[{<<"body">>,
                                     <<"<html><body><h1>Render
Error</h1><p>JavaScript function raised error: TypeError: doc is
null</p><h2>Stacktrace:</h2><code><pre>(null,[object Object])@:0
\nrunShow(function (doc, req) {return \"&lt;h1&gt;\" + doc.title +
\"&lt;/h1&gt;&lt;p&gt;\" + doc.body + \"&lt;/p&gt;\";},null,[object
Object],\"function (doc, req) { return '&lt;h1&gt;'+doc.title
+'&lt;/h1&gt;&lt;p&gt;'+doc.body+'&lt;/p&gt;'; }
\")@/usr/share/couchdb/server/main.js:388\n(\"function (doc, req)
{ return '&lt;h1&gt;'+doc.title+'&lt;/h1&gt;&lt;p&gt;'+doc.body
+'&lt;/p&gt;'; } \",null,[object
Object])@/usr/share/couchdb/server/main.js:358
\n@/usr/share/couchdb/server/main.js:842\n</pre></code><h2>Function
source:</h2><code><pre>function (doc, req) { return
'&lt;h1&gt;'+doc.title+'&lt;/h1&gt;&lt;p&gt;'+doc.body+'&lt;/p&gt;'; }
</pre></code></body></html>">>}]}}

[Tue, 01 Dec 2009 10:31:37 GMT] [debug] [<0.1628.0>] Unknown linked
process died: <0.1726.0> (reason: normal)

[Tue, 01 Dec 2009 10:31:37 GMT] [error] [<0.53.0>]
{error_report,<0.24.0>,
              {<0.53.0>,supervisor_report,
               [{supervisor,{local,couch_secondary_services}},
                {errorContext,child_terminated},
                {reason,normal},
                {offender,[{pid,<0.1628.0>},
                           {name,query_servers},
                           {mfa,{couch_query_servers,start_link,[]}},
                           {restart_type,permanent},
                           {shutdown,brutal_kill},
                           {child_type,worker}]}]}}

[Tue, 01 Dec 2009 10:31:37 GMT] [error] [<0.1594.0>] Uncaught error in
HTTP request: {exit,
                                 {normal,
                                  {gen_server,call,
                                   [couch_query_servers,
                                    {ret_proc,
                                     {proc,<0.1726.0>,<<"javascript">>,
                                      {couch_os_process,prompt},
                                      {couch_os_process,set_timeout},
                                      {couch_os_process,stop}}}]}}}

[Tue, 01 Dec 2009 10:31:37 GMT] [info] [<0.1594.0>] Stacktrace:
[{gen_server,call,2},
             {couch_query_servers,ret_os_process,1},
             {couch_query_servers,render_doc_show,6},
             {couch_httpd_show,'-send_doc_show_response/6-fun-0-',6},
             {couch_httpd_db,do_db_req,2},
             {couch_httpd,handle_request,5},
             {mochiweb_http,headers,5},
             {proc_lib,init_p_do_apply,3}]

[Tue, 01 Dec 2009 10:31:37 GMT] [debug] [<0.1594.0>] httpd 500 error
response:
 {"error":"normal","reason":"{gen_server,call,\n
[couch_query_servers,\n             {ret_proc,{proc,<0.1726.0>,<<
\"javascript\">>,\n
{couch_os_process,prompt},\n
{couch_os_process,set_timeout},\n
{couch_os_process,stop}}}]}"}


[Tue, 01 Dec 2009 10:31:37 GMT] [info] [<0.1594.0>] 192.168.218.87 - -
'GET' /shows/_design/test/_show/summary/404 50



I am using CouchDB 0.10.0 from Ubuntu Karmic's repository. Any
assistance is much appreciated.


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