[GitHub] [couchdb] nickva commented on issue #2219: function_clause in chttpd_db:update_doc/4

[GitBox <gi...@apache.org>]

nickva commented on issue #2219:
URL: https://github.com/apache/couchdb/issues/2219#issuecomment-1233753386

   You could try adding an extra function clause to `couch_mrview_http:view_cb/2` to log the error with `couch_log:error(...)`.
   
   ```erlang
   view_cb({row, Row}, #vacc{meta_sent=true}=Acc) ->
       % Adding another row
       Chunk = [prepend_val(Acc), row_to_json(Row)],
       maybe_flush_response(Acc#vacc{row_sent=true}, Chunk, iolist_size(Chunk));
   
   view_cb(Msg, Acc) ->
       couch_log:error("~p : xxxxx function_clause ~p ~p", [?MODULE, Msg, Acc]),
       error(function_clause).
   ```
   
   There is also a good chance it was fixed in 3.x series, so try to upgrade to 3.2.2 and see if it still happens.


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