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[kio <1356925@xxxxxxxxxxxxxxxxxx>]

** This bug is no longer a duplicate of bug 871822
   nova-api crashed with input/output error

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https://bugs.launchpad.net/bugs/1356925

Title:
  keystone-all unexpected crash

Status in OpenStack Identity (Keystone):
  New

Bug description:
  I'm getting this traceback error on log when the keystone service
  crashes. I couldn't reproduce this error to analyse it, so I have no
  idea what is causing.

  (keystone): 2014-08-13 18:29:48,275 CRITICAL IOError: [Errno 5] Input/output error
  Traceback (most recent call last):
    File "/opt/keystone/virtualenv/bin/keystone-all", line 147, in <module>
      serve(*servers)
    File "/opt/keystone/virtualenv/bin/keystone-all", line 97, in serve
      server.wait()
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/keystone/common/environment/eventlet_server.py", line 110, in wait
      self.pool.waitall()
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/greenpool.py", line 117, in waitall
      self.no_coros_running.wait()
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/event.py", line 116, in wait
      return hubs.get_hub().switch()
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 187, in switch
      return self.greenlet.switch()
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 236, in run
      self.wait(sleep_time)
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/hubs/poll.py", line 109, in wait
      self.squelch_exception(fileno, sys.exc_info())
    File "/opt/keystone/virtualenv/lib/python2.7/site-packages/eventlet/hubs/hub.py", line 190, in squelch_exception
      traceback.print_exception(*exc_info)
    File "/opt/generic/python27/lib/python2.7/traceback.py", line 124, in print_exception
      _print(file, 'Traceback (most recent call last):')
    File "/opt/generic/python27/lib/python2.7/traceback.py", line 13, in _print
      file.write(str+terminator)
  IOError: [Errno 5] Input/output error

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