[GitHub] davisp commented on issue #1142: fabric:query_view/4 fails if number of docs in the DB is more than 60

[GitBox]

davisp commented on issue #1142: fabric:query_view/4 fails if number of docs in 
the DB is more than 60
URL: https://github.com/apache/couchdb/issues/1142#issuecomment-371904385
 
 
   First guess is that you're mixing up the rexi message handling. The 
rexi_util:recv function isn't written to handle multiple nested calls and will 
end up chewing through and mixing up messages from RPC workers. A quick test is 
to use something of this nature to replace you fabric:query_view call:
   
   ```erlang
   do_query(DbName, VName, QArgs) ->
       {_, Ref} = spawn_monitor(fun() ->
           try
               Resp = fabric:query_view(<<"db1">>, DName, VName, QArgs)
               exit({xkcd_ok, Resp})
           catch T:R ->
               S = erlang:get_stacktrace(),
               exit({xkcd_error, T, R, S})
       end),
       receive
           {'DOWN', Ref, _, _, {xkcd_ok, Resp}} ->
               Resp
           {'DOWN', Ref, _, _, {xkcd_error, T, R, S}} ->
               erlang:raise(T, R, S)
       end.
   ```
   

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