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From Hinnerk Haardt <hinn...@randnotizen.de>
Subject Empty response on PUT
Date Thu, 18 Nov 2010 17:15:14 GMT
Hi,

sometimes my CouchApp based application gets confused because CouchDB
apparently returns an empty response on PUT.

I'm trying to save a changed document to the database using this call:

        db.saveDoc(newdoc, {
            success: function() {
                alert("Version " + newdoc._rev.split("-")[0] + "
erfolgreich gespeichert.");
            },
            error: function(e, f) {
                alert("\"" + newdoc._id + "\" nicht gespeichert!
Fehler " + e + ", " + f);
            }
        });

CouchDB responses with an empty reply and neither "success" nor
"alert" fire. Firebugs consoles reply tab displays an empty line and
Wiresharks "follow tcp stream" shows this:

--------------------------------------------------------------------------------
PUT /test_test/a46939051826ee4ea6428c5d5700092c HTTP/1.1
Host: localhost:5984
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; de;
rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12
Accept: application/json, text/javascript, */*
Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Content-Type: application/json; charset=UTF-8
X-Requested-With: XMLHttpRequest
Referer: http://localhost:5984/test_test/_design/CouchTest/index.html
Content-Length: 1293
Cookie: AuthSession=aGlubmVyazo0Q0REOEFDOTpyw3dBSwuCh0CMa0l3YRGz_JxTGw

{"_id":"a46939051826ee4ea6428c5d5700092c","_rev":"5-c6b28cd30a3aac9f1b6a9e04f45954f6","title":"Testeintrag","content":"yupp.
-- oder?","tags":[],"created_at":"2010-11-12T18:35:42.363Z","type":"entry","creator":"hinnerk","edited_at":"2010-11-12T18:48:39.776Z","editor":"hinnerk","_attachments":{"rev-1":{"content_type":"application/json","revpos":2,"length":272,"stub":true},"rev-2":{"content_type":"application/json","revpos":3,"length":427,"stub":true},"rev-3":{"content_type":"application/json","revpos":4,"length":507,"stub":true},"rev-5":{"content_type":"application/json","data":"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"}}}HTTP/1.1
201 Created
Server: CouchDB/1.0.1 (Erlang OTP/R14B)
Location: http://localhost:5984/test_test/a46939051826ee4ea6428c5d5700092c
Etag: "6-fd1d949fe9bd1f09b5d254a88c18ad0e"
Date: Fri, 12 Nov 2010 18:48:39 GMT
Content-Type: application/json
Content-Length: 95
Cache-Control: must-revalidate

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

There's nothing obviously wrong in the debug log (note: this debug log
is a bit newer than the above network dump):

[debug] [<0.6284.0>] 'GET'
/test_test/_design/CouchTest/_view/tags?group_level=1 {1,1} from
"127.0.0.1"
Headers: [{'Accept',"application/json, text/javascript, */*"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Content-Type',"application/json"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"61A4Y694CMIG602LZX6S6EUNF\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"},
          {"X-Requested-With","XMLHttpRequest"}]
[debug] [<0.6284.0>] OAuth Params: [{"group_level","1"}]
[debug] [<0.6284.0>] timeout 43200
[debug] [<0.6284.0>] Successful cookie auth as: "hinnerk"
[debug] [<0.6284.0>] request_group {Pid, Seq} {<0.201.0>,690}
[debug] [<0.6284.0>] request_group {Pid, Seq} {<0.201.0>,690}
[info] [<0.6284.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/_view/tags?group_level=1 304
[debug] [<0.6288.0>] 'PUT' /test_test/a46939051826ee4ea6428c5d5700092c
{1,1} from "127.0.0.1"
Headers: [{'Accept',"application/json, text/javascript, */*"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Content-Length',"4805"},
          {'Content-Type',"application/json; charset=UTF-8"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"},
          {"X-Requested-With","XMLHttpRequest"}]
[debug] [<0.6287.0>] 'GET' /test_test/_design/CouchTest/index.html
{1,1} from "127.0.0.1"
Headers: [{'Accept',"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"531-f6974bcc0c5d2d7836df7162fdf9507a\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"}]
[debug] [<0.6288.0>] OAuth Params: []
[debug] [<0.6287.0>] OAuth Params: []
[debug] [<0.6288.0>] timeout 43200
[debug] [<0.6287.0>] timeout 43200
[debug] [<0.6288.0>] Successful cookie auth as: "hinnerk"
[debug] [<0.6287.0>] Successful cookie auth as: "hinnerk"
[info] [<0.6288.0>] 127.0.0.1 - - 'PUT'
/test_test/a46939051826ee4ea6428c5d5700092c 201
[info] [<0.6287.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/index.html 304
[debug] [<0.6286.0>] 'GET'
/test_test/_design/CouchTest/style/ui-lightness/jquery-ui-1.8.6.custom.css
{1,

           1} from "127.0.0.1"
Headers: [{'Accept',"text/css,*/*;q=0.1"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"531-f6974bcc0c5d2d7836df7162fdf9507a\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"}]
[debug] [<0.6285.0>] 'GET' /test_test/_design/CouchTest/style/main.css
{1,1} from "127.0.0.1"
Headers: [{'Accept',"text/css,*/*;q=0.1"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"531-f6974bcc0c5d2d7836df7162fdf9507a\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"}]
[debug] [<0.6284.0>] 'GET'
/test_test/_design/CouchTest/vendor/couchapp/loader.js {1,1} from
"127.0.0.1"
Headers: [{'Accept',"*/*"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"531-f6974bcc0c5d2d7836df7162fdf9507a\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"}]
[debug] [<0.6286.0>] OAuth Params: []
[debug] [<0.6285.0>] OAuth Params: []
[debug] [<0.6284.0>] OAuth Params: []
[debug] [<0.6286.0>] timeout 43200
[debug] [<0.6285.0>] timeout 43200
[debug] [<0.6284.0>] timeout 43200
[debug] [<0.6286.0>] Successful cookie auth as: "hinnerk"
[debug] [<0.6285.0>] Successful cookie auth as: "hinnerk"
[debug] [<0.6284.0>] Successful cookie auth as: "hinnerk"
[info] [<0.6286.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/style/ui-lightness/jquery-ui-1.8.6.custom.css
304
[info] [<0.6285.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/style/main.css 304
[info] [<0.6284.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/vendor/couchapp/loader.js 304
[debug] [<0.6287.0>] 'GET'
/test_test/_design/CouchTest/scripts/jquery-ui-1.8.6.custom.min.js
{1,1} from "127.0.0.1"
Headers: [{'Accept',"*/*"},
          {'Accept-Charset',"ISO-8859-1,utf-8;q=0.7,*;q=0.7"},
          {'Accept-Encoding',"gzip,deflate"},
          {'Accept-Language',"de-de,de;q=0.8,en-us;q=0.5,en;q=0.3"},
          {'Connection',"keep-alive"},
          {'Cookie',"AuthSession=aGlubmVyazo0Q0U1NDY2NzrZKVt02Z_znPZtFnXDlNvXr9nw1Q"},
          {'Host',"localhost:5984"},
          {'If-None-Match',"\"531-f6974bcc0c5d2d7836df7162fdf9507a\""},
          {'Keep-Alive',"115"},
          {'Referer',"http://localhost:5984/test_test/_design/CouchTest/index.html"},
          {'User-Agent',"Mozilla/5.0 (Macintosh; U; Intel Mac OS X
10.6; de; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"}]
[debug] [<0.6287.0>] OAuth Params: []
[debug] [<0.6287.0>] timeout 43200
[debug] [<0.6287.0>] Successful cookie auth as: "hinnerk"
[info] [<0.6287.0>] 127.0.0.1 - - 'GET'
/test_test/_design/CouchTest/scripts/jquery-ui-1.8.6.custom.min.js 304


I've tried to reproduce it on different versions (1.0.1, svn-1036440)
and platforms (Mac/Intel, Linux/Intel). It seems setting [log]
level=debug makes it work in 1.0.1 but not in the current svn revision
(1036440). Setting [log] level=info seems to always expose this
behavior.

Has anyone seen anything similar? Any ideas?

If not I'll try do extract a minimal design doc reproducing it and
create a database that I can share.


Hinnerk

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