yahoo-eng-team team mailing list archive

[Markus Zoeller <mzoeller@xxxxxxxxxx>]

Public bug reported:

When doing a migration/resize to another host without having a shared
storage, the compute nodes need SSH access to each other[1], which is
not documented in the "admin guide" [2]. Right now one has to search for
blogs which describe how to solve this [3]. I think this should either
be documented in the OpenStack admin guide in the compute section or
there could be a solution where the SSH access to another compute host
is not necessary anymore.

References:
----------------
[1] OpenStack; Nova; libvirt driver; mkdir via SSH;
    https://github.com/openstack/nova/blob/2015.1.0/nova/virt/libvirt/driver.py#L6242
[2] OpenStack Cloud Admin Guide; Configure migrations;
    http://docs.openstack.org/admin-guide-cloud/content/section_configuring-compute-migrations.html
[3] Sebastien Han; 2015-01-06; "OpenStack Configure VM Migrate Nova SSH";
    http://www.sebastien-han.fr/blog/2015/01/06/openstack-configure-vm-migrate-nova-ssh/

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: documentation

** Tags added: documentation

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https://bugs.launchpad.net/bugs/1477296

Title:
  docs: admin guide doesn't mention SSH settings for migration/resize

Status in OpenStack Compute (nova):
  New

Bug description:
  When doing a migration/resize to another host without having a shared
  storage, the compute nodes need SSH access to each other[1], which is
  not documented in the "admin guide" [2]. Right now one has to search
  for blogs which describe how to solve this [3]. I think this should
  either be documented in the OpenStack admin guide in the compute
  section or there could be a solution where the SSH access to another
  compute host is not necessary anymore.

  References:
  ----------------
  [1] OpenStack; Nova; libvirt driver; mkdir via SSH;
      https://github.com/openstack/nova/blob/2015.1.0/nova/virt/libvirt/driver.py#L6242
  [2] OpenStack Cloud Admin Guide; Configure migrations;
      http://docs.openstack.org/admin-guide-cloud/content/section_configuring-compute-migrations.html
  [3] Sebastien Han; 2015-01-06; "OpenStack Configure VM Migrate Nova SSH";
      http://www.sebastien-han.fr/blog/2015/01/06/openstack-configure-vm-migrate-nova-ssh/

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