Comment 2 for bug 1924652

Reviewed: https://review.opendev.org/c/openstack/os-brick/+/785818
Committed: https://opendev.org/openstack/os-brick/commit/1b2e2295421615847d86508dcd487ec51fa45f25
Submitter: "Zuul (22348)"
Branch: master

commit 1b2e2295421615847d86508dcd487ec51fa45f25
Author: Takashi Kajinami <email address hidden>
Date: Mon Apr 12 14:07:46 2021 +0900

    multipath/iscsi: remove devices from multipath monitoring

    Recent multipathd doesn't remove path devices timely when it receives
    burst of udev events but wait for a while to start actual removal.
    Because os-brick removes path devices in a short time during detaching
    a multipath device, it is likely to hit this burst limit and sometimes
    path devices are not removed before a subsequent operation is started.

    This change ensures that os-brick tells mutlipathd to remove path
    devices when the devices should be deleted, so that orphan paths are
    not left when starting a subsequent attach operation.

    Closes-Bug: #1924652
    Change-Id: I65204aa7495740dc1545bff2c5c485a8041e7930