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[Bug 1943977] Re: os_bricks fails to rerty "iscsiadm -m session" when iser_use_multipath and iscsi_use_multipath are set in nova.conf

 

** Project changed: cinder => nova

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https://bugs.launchpad.net/bugs/1943977

Title:
  os_bricks fails to rerty "iscsiadm -m session" when iser_use_multipath
  and iscsi_use_multipath are set in nova.conf

Status in OpenStack Compute (nova):
  New

Bug description:
  When attempting to live migrate and VM to a new compute node it fails
  and remains on the original compute node.

  Reviewing the logs I can see the iscsi session is currently not
  connected and needs to be brought up but it then fails with "ERROR
  oslo_messaging.rpc.server TargetPortalNotFound: Unable to find target
  portal 1.1.1.1:3260".

  With "iser_use_multipath" and "iscsi_use_multipath" set false in
  nova.conf I can see the initial os_bricks fails with "No Active
  sessions" as iscsid has yet to bring up the session but the second try
  from os_bricks then succeeds as by this time iscsid has brought the
  session up.

  With "iser_use_multipath" and "iscsi_use_multipath" set true in
  nova.conf I can see the initial os_bricks fails with "No Active
  sessions" as iscsid has yet to bring up the session but no second
  attempt from os_bricks leads to the "TargetPortalNotFound".

  I'm running "os_brick-2.5.10". should os_bricks retry when using
  multipath in nova.conf?

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