CRASH REPORT Process <<"TypeError: reduce of empty array with no initial value">>},{<<"source">>,<<"unknown">>}]}

[David Montgomery]

2012-12-20 13:31:27.906 [error] <0.30794.1> CRASH REPORT Process
<0.30794.1> with 0 neighbours exited with reason:
{fitting_exited_abnormally,[{<<"lineno">>,3},{<<"message">>,<<"TypeError:
reduce of empty array with no initial
value">>},{<<"source">>,<<"unknown">>}]} in gen_fsm:terminate/7 line 611
2012-12-20 13:31:27.912 [error] <0.213.0> Supervisor riak_pipe_builder_sup
had child undefined started with {riak_pipe_builder,start_link,undefined}
at <0.30794.1> exit with reason
{fitting_exited_abnormally,[{<<"lineno">>,3},{<<"message">>,<<"TypeError:
reduce of empty array with no initial
value">>},{<<"source">>,<<"unknown">>}]} in context child_terminated


Hi,

The above is the crash report I get when I run the below script using the
api.  The api does not return an error.  I have to look at the logs on the
node running the query else will run till timeout is reached.

query.map('''
    function(value, keyData, arg) {
        var data = Riak.mapValuesJson(value)[0];
        if(data['adx']=='gdn'){
            try{
                var matches =
data['url'].match(/^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i);
                var alt_key = matches && matches[1];
            }
            catch(err){
                var alt_key = 'error';
            }
            obj[alt_key] = 1;
            return [ obj ];
        }else{
           return [];
        }
    }''')

query.reduce('''
    function(values, arg){
        return [ values.reduce( function(acc, item) {
            for (var state in item) {
                if (acc[state])
                    acc[state] += item[state];
                else
                    acc[state] = item[state];
            }
            return acc;
        })];
    }
    ''')

Thanks

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