Distributed search has problem for facet

I use two shards in two different machines. Here is my URL http://machine1:8900/solr/select/?shards=machine1:8900/solr,machine2:8900/solr&q=body\::dell&start=0&rows=10&facet=true&facet.field=authorname This works great for 1.3.0 I just download the Solr 1.4 from trunk and it breaks. If I run the

missing jmx stats for num_docs and max_doc

nyone encounter this before? What should I do next to continue to troubleshoot this? Thanks, Zehua