I am trying to run a map-reduce and it is failing with the following error :
/usr/lib/ruby/gems/1.8/gems/mongo-1.4.0/lib/../lib/mongo/db.rb:520:in `command': Database command 'mapreduce' failed: (errmsg: 'assertion: assertion scripting/engine_spidermonkey.cpp:433'; ok: '0.0'). (Mongo::OperationFailure) from /usr/lib/ruby/gems/1.8/gems/mongo-1.4.0/lib/../lib/mongo/ collection.rb:618:in `map_reduce' from unique-sites.rb:164
The map reduce works okay if a smaller dataset is provided. Can someone please help ?
Thanks Pankaj
HEre are the map and reduce functions:
map = "function() { if ( this.sites ) " + "{ " + " var parent_deviceid=this.deviceid; "+ " var unique_total_dur = new Object(); " + " this.sites.forEach(function(site_entry) { " + " var validDur = 0; "+ " if ( site_entry.duration ) "+ " validDur = site_entry.duration; "+ " if ( site_entry.url in unique_total_dur ) " + " unique_total_dur[site_entry.url] += validDur; "+ " else { " + " unique_total_dur[site_entry.url] = 0; "+ " unique_total_dur[site_entry.url] += validDur; "+ "}}); " + " for( var visited_site in unique_total_dur ) { "
