EMC Hawq安装问题，Greeplum安装问题

Hawq的安装遇到以下问题，谁能解答一下？？

20130527:10:00:05:213181 gpstart:bdp6:gpadmin-[ERROR]:-ExecutionError: 'non-zero rc: 1' occured.  Details: 'ssh -o 'StrictHostKeyChecking no' bdp7 ". /usr/local/hawq/./greenplum_path.sh; $GPHOME/sbin/gpoperation.py"'  cmd had rc=1 completed=True halted=False
  stdout=''
  stderr=''import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/usr/local/hawq/./sbin/gpoperation.py", line 3, in <module>
    import pickle
  File "/usr/local/hawq-1.0.0.0/sbin/pickle.py", line 34, in <module>
    import struct
  File "/usr/local/hawq-1.0.0.0/sbin/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
'
Traceback (most recent call last):
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 202, in run
    self.cmd.run()
  File "/usr/local/hawq/lib/python/gppylib/operations/__init__.py", line 49, in run
    self.ret = self.execute()
  File "/usr/local/hawq/lib/python/gppylib/operations/utils.py", line 48, in execute
    cmd.run(validateAfter=True)
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 693, in run
    self.validate()
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 728, in validate
    raise ExecutionError("non-zero rc: %d" % self.results.rc, self)
ExecutionError: ExecutionError: 'non-zero rc: 1' occured.  Details: 'ssh -o 'StrictHostKeyChecking no' bdp7 ". /usr/local/hawq/./greenplum_path.sh; $GPHOME/sbin/gpoperation.py"'  cmd had rc=1 completed=True halted=False
  stdout=''
  stderr=''import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/usr/local/hawq/./sbin/gpoperation.py", line 3, in <module>
    import pickle
  File "/usr/local/hawq-1.0.0.0/sbin/pickle.py", line 34, in <module>
    import struct
  File "/usr/local/hawq-1.0.0.0/sbin/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
'
20130527:10:00:06:213181 gpstart:bdp6:gpadmin-[ERROR]:-ExecutionError: 'non-zero rc: 1' occured.  Details: 'ssh -o 'StrictHostKeyChecking no' bdp7 ". /usr/local/hawq/./greenplum_path.sh; $GPHOME/sbin/gpoperation.py"'  cmd had rc=1 completed=True halted=False
  stdout=''
  stderr=''import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/usr/local/hawq/./sbin/gpoperation.py", line 3, in <module>
    import pickle
  File "/usr/local/hawq-1.0.0.0/sbin/pickle.py", line 34, in <module>
    import struct
  File "/usr/local/hawq-1.0.0.0/sbin/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
'
Traceback (most recent call last):
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 202, in run
    self.cmd.run()
  File "/usr/local/hawq/lib/python/gppylib/operations/__init__.py", line 49, in run
    self.ret = self.execute()
  File "/usr/local/hawq/lib/python/gppylib/operations/utils.py", line 48, in execute
    cmd.run(validateAfter=True)
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 693, in run
    self.validate()
  File "/usr/local/hawq/lib/python/gppylib/commands/base.py", line 728, in validate
    raise ExecutionError("non-zero rc: %d" % self.results.rc, self)
ExecutionError: ExecutionError: 'non-zero rc: 1' occured.  Details: 'ssh -o 'StrictHostKeyChecking no' bdp7 ". /usr/local/hawq/./greenplum_path.sh; $GPHOME/sbin/gpoperation.py"'  cmd had rc=1 completed=True halted=False
  stdout=''
  stderr=''import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/usr/local/hawq/./sbin/gpoperation.py", line 3, in <module>
    import pickle
  File "/usr/local/hawq-1.0.0.0/sbin/pickle.py", line 34, in <module>
    import struct
  File "/usr/local/hawq-1.0.0.0/sbin/struct.py", line 1, in <module>
    from _struct import *
ImportError: No module named _struct
'
20130527:10:00:06:213181 gpstart:bdp6:gpadmin-[ERROR]:-Invalid OID in flat file on host bdp7
20130527:10:00:06:213181 gpstart:bdp6:gpadmin-[ERROR]:-Filespaces are inconsistent. Abort Greenplum Database start.
20130527:10:00:06:213181 gpstart:bdp6:gpadmin-[INFO]:-Shutting down master