问HAWQ停止群集失败

EN

[hadoop@Master ~]$ hawq stop cluster 
20161217:19:59:31:004594 hawq_stop:Master:hadoop-[INFO]:-Prepare to do 'hawq stop'
20161217:19:59:31:004594 hawq_stop:Master:hadoop-[INFO]:-You can check log in /home/hadoop/hawqAdminLogs/hawq_stop_20161217.log
20161217:19:59:31:004594 hawq_stop:Master:hadoop-[INFO]:-Stop hawq with args: ['stop', 'cluster']

Continue with HAWQ service stop Yy|Nn (default=N):

20161217:19:59:38:004594 hawq_stop:Master:hadoop-[INFO]:-No standby host configured
20161217:19:59:38:004594 hawq_stop:Master:hadoop-[INFO]:-Stop hawq cluster
Traceback (most recent call last):
  File "/home/hadoop/hawq/bin/hawq_ctl", line 1276, in <module>
    stop_hawq(opts, hawq_dict)
  File "/home/hadoop/hawq/bin/hawq_ctl", line 1043, in stop_hawq
    instance.run()
  File "/home/hadoop/hawq/bin/hawq_ctl", line 891, in run
    check_return_code(self._stopAll())
  File "/home/hadoop/hawq/bin/hawq_ctl", line 816, in _stopAll
    master_result = self._stop_master()
  File "/home/hadoop/hawq/bin/hawq_ctl", line 760, in _stop_master
    self._stop_master_checks()
  File "/home/hadoop/hawq/bin/hawq_ctl", line 712, in _stop_master_checks
    self.conn = dbconn.connect(self.dburl, utility=True)
  File "/home/hadoop/hawq/lib/python/gppylib/db/dbconn.py", line 211, in connect
    cnx  = pgdb._connect_(cstr, dbhost, dbport, dbopt, dbtty, dbuser, dbpasswd)
AttributeError: 'module' object has no attribute '_connect_'

pg_ctl stop -D <master_data_dir>/<segment_data_dir>