dgarrett$balance-pool --all-boards cq 
Default max broken boards calculated to be 9 for cq pool
Traceback (most recent call last):
  File "/usr/local/bin/balance-pool", line 599, in <module>
    main(sys.argv)
  File "/usr/local/bin/balance-pool", line 576, in main
    if _too_many_broken_boards(inventory, pool, arguments):
  File "/usr/local/bin/balance-pool", line 446, in _too_many_broken_boards
    if counts.get_broken(pool) != 0]
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/site_utils/lab_inventory.py", line 345, in get_broken
    return self._count_pool(_PoolCounts.get_broken, pool)
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/site_utils/lab_inventory.py", line 292, in _count_pool
    return get_pool_count(self._pools[pool])
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/site_utils/lab_inventory.py", line 211, in get_broken
    return len(self.get_broken_list())
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/site_utils/lab_inventory.py", line 205, in get_broken_list
    if h.last_diagnosis()[0] == status_history.BROKEN]
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/server/lib/status_history.py", line 657, in last_diagnosis
    self._init_status_task()
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/server/lib/status_history.py", line 586, in _init_status_task
    self._afe, self._host.id, self.end_time)
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/server/lib/status_history.py", line 281, in get_status_task
    task = afe.get_host_status_task(host_id, query_end)
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/server/frontend.py", line 651, in get_host_status_task
    host_id=host_id, end_time=end_time)
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/server/frontend.py", line 107, in run
    result = utils.strip_unicode(rpc_call(**dargs))
  File "/usr/local/google/home/dgarrett/sand/clean/src/third_party/autotest/files/frontend/afe/json_rpc/proxy.py", line 123, in __call__
    raise BuildException(resp['error'])
autotest_lib.frontend.afe.json_rpc.proxy.JSONRPCException: HTTPError: HTTP Error 500: Internal Server Error
Traceback (most recent call last):
  File "/usr/local/autotest/frontend/afe/json_rpc/serviceHandler.py", line 120, in dispatchRequest
    results['result'] = self.invokeServiceEndpoint(meth, args)
  File "/usr/local/autotest/frontend/afe/json_rpc/serviceHandler.py", line 160, in invokeServiceEndpoint
    return meth(*args)
  File "/usr/local/autotest/frontend/afe/rpc_handler.py", line 270, in new_fn
    return f(*args, **keyword_args)
  File "/usr/local/autotest/frontend/afe/rpc_interface.py", line 1406, in get_host_status_task
    host_id=host_id, end_time=end_time)
  File "/usr/local/autotest/server/frontend.py", line 107, in run
    result = utils.strip_unicode(rpc_call(**dargs))
  File "/usr/local/autotest/frontend/afe/json_rpc/proxy.py", line 114, in __call__
    respdata = urllib2.urlopen(request).read()
  File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 410, in open
    response = meth(req, response)
  File "/usr/lib/python2.7/urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 500: Internal Server Error