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[Doug Hellmann <doug@xxxxxxxxxxxxxxxx>]

** Project changed: oslo-incubator => oslo.log

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https://bugs.launchpad.net/bugs/1101404

Title:
  nova syslog logging to /dev/log race condition in python 2.6

Status in OpenStack Identity (Keystone):
  Confirmed
Status in OpenStack Compute (Nova):
  Confirmed
Status in Logging configuration library for OpenStack:
  Confirmed

Bug description:
  
  running nova-api-ec2
  running rsyslog

  service rsyslog restart ; service nova-api-ec2 restart

  nova-api-ec2 consumes up to 100% of the available CPU (or at least a
  full core) and s not responsive.  /var/log/nova/nova-api-ec2.lgo
  states the socket is already in use.

  strace the process

  sendto(3, "<142>2013-01-18 20:00:22 24882 INFO nova.service [-] Caught
  SIGTERM, exiting\0", 77, 0, NULL, 0) = -1 ENOTCONN (Transport endpoint
  is not connected)

  service nova-api-ec2 restart fails as upstart already thinks the
  process has been terminated.

  The only way to recover is to pkill -9 nova-api-ec2 and then restart
  it with 'service nova-api-ec2 restart'.

  The same behavior has been seen in all nova-api services.

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