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[Sean Dague <sean@xxxxxxxxx>]

** Changed in: nova/liberty
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1557498

Title:
  Using logging in the serial console worker blocks Nova

Status in OpenStack Compute (nova):
  Won't Fix
Status in OpenStack Compute (nova) liberty series:
  Fix Released
Status in os-win:
  Fix Released

Bug description:
  The worker used by Nova to log instance serial console output can log
  an exception message.

  The issue is that logging a message from a different thread causes
  Nova to hang. It seems that the logging file handler causes issues
  when greenthreads and multiple native threads are used at the same,
  and the native threads log messages.

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