swift上传大文件出现 Broken pipe，求思路，谢谢

异常日志：
proxy-server: ERROR with Object server 192.168.2.204:6003/part2 re:
Trying to write to /v1/AUTH_bd12b9b1d9294ada92281fa52422f246/test/512m_2: #012Traceback (most recent call last):#012  
File "/usr/lib/python2.6/site-packages/swift/proxy/controllers/obj.py", line 338, in _send_file#012    conn.send(chunk)#012  
File "/usr/lib64/python2.6/httplib.py", line 759, in send#012    self.sock.sendall(str)#012  
File "/usr/lib/python2.6/site-packages/eventlet/greenio.py", line 309, in sendall#012    tail = self.send(data, flags)#012  
File "/usr/lib/python2.6/site-packages/eventlet/greenio.py", line 295, in send#012   
    total_sent += fd.send(data[total_sent:], flags)
  #012error: [Errno 32] Broken pipe

望大家给点思路

Object server 192.168.2.204
这个Object server是否还正常，测试小文件是否可以