gistfile1.txt

I am performing a query that generally works correctly but sometimes get the following:

  File "/usr/local/lib/python2.6/dist-packages/pyes-0.15.0-py2.6.egg/pyes/es.py", line 735, in search
    return self._query_call("_search", body, indexes, doc_types, **query_params)
  File "/usr/local/lib/python2.6/dist-packages/pyes-0.15.0-py2.6.egg/pyes/es.py", line 248, in _query_call
    response = self._send_request('GET', path, body, querystring_args)
  File "/usr/local/lib/python2.6/dist-packages/pyes-0.15.0-py2.6.egg/pyes/es.py", line 218, in _send_request
    raise pyes.exceptions.ElasticSearchException(response.body, response.status, response.body)

Contrary to the comments in this section of es.py the request looks successful however removing the exception handling reveals an underlying json error:

 File "/usr/lib/python2.6/json/decoder.py", line 155, in JSONString
    return scanstring(match.string, match.end(), encoding, strict)
ValueError: Invalid \uXXXX escape: line 1 column 28831 (char 28831)

How can I be getting back responses that contain invalid escape sequences (I used pyes to index the data as well)