Connection refused when deleting Cinder volumes during many concurrent sessions

Solution In Progress - Updated -

Issue

  • Cinder client commands such as cinder delete $UUID return ERROR: [Errno 111] Connection refused
  • A test was conducted to create and delete 16 volumes at the same time twice; 32 volumes were created but the last 4 were not deleted.

Environment

  • Red Hat Enterprise Linux OpenStack Platform

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