Nova compute driver init happens before conductor is ready

[Dan Smith]

In nova/service.py we poll for conductor readiness before we allow normal service startup behavior. The ironic driver does RPC to conductor in its _refresh_hash_ring() code, which may expect conductor be up before it's not. If so, we'll fail to start up because we called to conductor, waited a long time, and then timed out.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/497966

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/497966
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=361287debf7c2cd5751517cedda8c960c5b5eb66
Submitter: Jenkins
Branch: master

commit 361287debf7c2cd5751517cedda8c960c5b5eb66
Author: Dan Smith <email address hidden>
Date: Fri Aug 25 08:48:49 2017 -0700

    Move hash ring initialization to init_host() for ironic

    The hash ring initialization code requires calling to conductor over
    RPC. Nova's service startup initializes the manager and the virt
    driver, then goes into a polling loop waiting for a conductor to
    respond to make sure it is ready. Finally, it calls init_host()
    once things are expected to be working. That is where we should
    do our initialization that requires conductor to be up.

    This patch moves the initial refresh into the Ironic driver's
    init_host() routine.

    Change-Id: If92f4b1df061f91ffffa7900532a978649efb933
    Closes-Bug: #1713095

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/502082

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/502082
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=e53115da7fc10381c6f9cedcd909461e3c13c4ea
Submitter: Jenkins
Branch: stable/pike

commit e53115da7fc10381c6f9cedcd909461e3c13c4ea
Author: Dan Smith <email address hidden>
Date: Fri Aug 25 08:48:49 2017 -0700

    Move hash ring initialization to init_host() for ironic

    The hash ring initialization code requires calling to conductor over
    RPC. Nova's service startup initializes the manager and the virt
    driver, then goes into a polling loop waiting for a conductor to
    respond to make sure it is ready. Finally, it calls init_host()
    once things are expected to be working. That is where we should
    do our initialization that requires conductor to be up.

    This patch moves the initial refresh into the Ironic driver's
    init_host() routine.

    Change-Id: If92f4b1df061f91ffffa7900532a978649efb933
    Closes-Bug: #1713095
    (cherry picked from commit 361287debf7c2cd5751517cedda8c960c5b5eb66)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/nova 16.0.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/nova 17.0.0.0b1 development milestone.