<div>Hello list,</div><div><br></div><div>I've written a large map/reduce query using the Python bindings - basically it's an expanded version of the users/tags example in this post:</div><div><br></div><div><a href="http://basho.com/blog/technical/2010/04/14/practical-map-reduce:-forwarding-and-collecting/">http://basho.com/blog/technical/2010/04/14/practical-map-reduce:-forwarding-and-collecting/</a></div>

<div><br></div><div>When I run the query it fails with this error, with which I am unfamiliar.. Any thoughts on how to diagnose?</div><div><br></div><div>Exception: Error running MapReduce operation. Headers: {'date': 'Thu, 11 Oct 2012 03:57:39 GMT', 'content-length': '1211', 'content-type': 'application/json', 'http_code': 500, 'server': 'MochiWeb/1.1 WebMachine/1.9.0 (someone had painted it blue)'} Body: '{"phase":0,"error":"{noproc,{gen_server,call,[riak_kv_js_map,{reserve_vm,<0.23487.1151>},infinity]}}","input":"{ok,{r_object,<<\\"carts\\">>,<<\\"1284510f1d9013cf43d44cce3fde7847\\">>,[{r_content,{dict,6,16,16,8,80,48,{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]},{{[],[],[[<<\\"Links\\">>,{{<<\\"cart-products\\">>,<<\\"1284510f1d9013cf43d44cce3fde7847-0\\">>},<<\\"cart-products\\">>},{{<<\\"users\\">>,<<\\"1284510f1d9013cf43d44cce3fde7847\\">>},<<\\"user\\">>}]],[],[],[],[],[],[],[],[[<<\\"content-type\\">>,97,112,112,108,105,99,97,116,105,111,110,47,106,115,111,110],[<<\\"X-Riak-VT...\\">>,...]],...}}},...}],...},...}","type":"exit","stack":"[{gen_server,call,3,[{file,\\"gen_server.erl\\"},{line,188}]},{riak_kv_js_manager,blocking_dispatch,4,[{file,\\"src/riak_kv_js_manager.erl\\"},{line,250}]},{riak_kv_mrc_map,map_js,3,[{file,\\"src/riak_kv_mrc_map.erl\\"},{line,192}]},{riak_kv_mrc_map,process,3,[{file,\\"src/riak_kv_mrc_map.erl\\"},{line,140}]},{riak_pipe_vnode_worker,process_input,3,[{file,\\"src/riak_pipe_vnode_worker.erl\\"},{line,445}]},{riak_pipe_vnode_worker,wait_for_input,2,[{file,\\"src/riak_pipe_vnode_worker.erl\\"},{line,377}]},{gen_fsm,handle_msg,...},...]"}'</div>

<div><br></div><div>Thanks</div>