[hbase] UnicodeDecodeError: 'utf8' codec can't decode byte 0xb6 in position 8: invalid start byte

[27/Nov/2015 05:46:03 -0800] access INFO 172.21.7.77 hdfs - "GET /hbase/ HTTP/1.1"
[27/Nov/2015 05:46:04 -0800] access INFO 172.21.7.77 hdfs - "POST /hbase/api/getClusters HTTP/1.1"
[27/Nov/2015 05:46:04 -0800] access INFO 172.21.7.77 hdfs - "GET /jobbrowser/ HTTP/1.1"
[27/Nov/2015 05:46:04 -0800] access INFO 172.21.7.77 hdfs - "POST /hbase/api/getTableList/HBase HTTP/1.1"
[27/Nov/2015 05:46:11 -0800] access INFO 172.21.7.77 hdfs - "POST /hbase/api/getColumnDescriptors/HBase/VK_VI. HTTP/1.1"
[27/Nov/2015 05:46:11 -0800] access INFO 172.21.7.77 hdfs - "POST /hbase/api/getRowQuerySet/HBase/VK_VI./[]/[

{"row_key":"null","scan_length":10,"columns":[],"prefix":"false","filter":null,"editing":true}

] HTTP/1.1"
[27/Nov/2015 05:46:11 -0800] middleware INFO Processing exception: 'utf8' codec can't decode byte 0xb6 in position 8: invalid start byte: Traceback (most recent call last):
File "/opt/cloudera/parcels/CDH-5.4.5-1.cdh5.4.5.p0.7/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/core/handlers/base.py", line 112, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/cloudera/parcels/CDH-5.4.5-1.cdh5.4.5.p0.7/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/db/transaction.py", line 371, in inner
return func(*args, **kwargs)
File "/opt/cloudera/parcels/CDH-5.4.5-1.cdh5.4.5.p0.7/lib/hue/apps/hbase/src/hbase/views.py", line 76, in api_router
return api_dump(HbaseApi(request.user).query(*url_params))
File "/opt/cloudera/parcels/CDH-5.4.5-1.cdh5.4.5.p0.7/lib/hue/apps/hbase/src/hbase/views.py", line 124, in api_dump
'limit': trunc_limit,
File "/opt/cloudera/parcels/CDH-5.4.5-1.cdh5.4.5.p0.7/lib/hue/desktop/core/src/desktop/lib/django_util.py", line 470, in _init_
data = json.dumps(data, cls=encoder)
File "/usr/lib64/python2.6/json/_init_.py", line 237, in dumps
**kw).encode(obj)
File "/usr/lib64/python2.6/json/encoder.py", line 367, in encode
chunks = list(self.iterencode(o))
File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode
for chunk in self._iterencode_dict(o, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict
for chunk in self._iterencode(value, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 306, in _iterencode
for chunk in self._iterencode_list(o, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 204, in _iterencode_list
for chunk in self._iterencode(value, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode
for chunk in self._iterencode_dict(o, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 275, in _iterencode_dict
for chunk in self._iterencode(value, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 309, in _iterencode
for chunk in self._iterencode_dict(o, markers):
File "/usr/lib64/python2.6/json/encoder.py", line 273, in _iterencode_dict
yield encoder(key)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xb6 in position 8: invalid start byte