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From "Mark Hammond (JIRA)" <j...@apache.org>
Subject [jira] Created: (COUCHDB-452) couch logs an [error] record if a client disconnects
Date Wed, 05 Aug 2009 01:32:14 GMT
couch logs an [error] record if a client disconnects
----------------------------------------------------

                 Key: COUCHDB-452
                 URL: https://issues.apache.org/jira/browse/COUCHDB-452
             Project: CouchDB
          Issue Type: Improvement
            Reporter: Mark Hammond


If a client makes a request which returns multiple rows (eg, a query) but disconnects before
reading the response, couch logs:

[error] [<0.66.0>] Uncaught error in HTTP request: {exit,normal}
[info] [<0.66.0>] Stacktrace: [{mochiweb_request,send,2},
             {couch_httpd,send_chunk,2},
             {couch_httpd_view,send_json_view_row,5},
             {couch_httpd_view,'-make_view_fold_fun/6-fun-0-',12},
             {couch_view,fold_fun,4},
             {couch_btree,stream_kv_node2,7},
             {couch_btree,stream_kp_node,7},
             {couch_btree,fold,5}]

This could lead someone to conclude couch has an error which is not correct.  A simple [info]
record recording the premature normal exit is probably more appropriate.

FYI, the easiest way I found to repro this was to execute:

% python -c "import urllib; urllib.urlopen('http://127.0.0.1:5984/your_db/_design/your_design_doc/_view/your_view?reduce=false').close()"

which causes Python to open a connection and close it without reading anything.  I'll attach
a patch as suggested generally by jchris.

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