instance creation fails with an error. libvirtError: Unable to add bridge

Solution Verified - Updated -

Issue

  • When we try booting an instances using shell script without any interval in between two commands, boot operation fails with following error:
"libvirtError: Unable to add bridge brqab505b5c-7a port tap359ef2da-27: Device or resource busy"
  • If we add some interval(say 10 sec) in between two commands then error occurs, but its rare.

Environment

  • Red Hat Open Stack

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