GO_Functional_Similarity--online notebook shows lots of errors

[pnrobinson]

http://nbviewer.jupyter.org/github/biolink/ontobio/blob/master/notebooks/GO_Functional_Similarity.ipynb

starting from cell 10 there are multiple stack traces such as

ERROR:pysolr:Connection to server 'http://golr.berkeleybop.org/select/?q=%2A%3A%2A&fq=document_category%3A%22annotation%22&fq=taxon_closure%3A%22NCBITaxon%3A7955%22&facet=off&facet.limit=0&facet.mincount=1&fl=bioentity%2Cbioentity_label%2Cqualifier%2Cannotation_class&rows=100000&wt=json' timed out: HTTPConnectionPool(host='golr.berkeleybop.org', port=80): Read timed out. (read timeout=4)
Traceback (most recent call last):
  File "/Users/cjm/repos/ontobio/venv/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
    six.raise_from(e, None)
(...)