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On 21/04, Jae Sang Lee wrote:
> Hello, cinder developers.
>
> What progress about cinder-volume HA A/A? In the release notes[1],
> cinder-volume HA A/A is still progress from Newton to Ocata and there is so
> many patches and progress on the feature page[2], but it doesn't look like
> up-to-date, It's difficult to understand the current situation.
>
> Is there any developer or know people about this feature? How's it going? I
> wait this feature from long ago and I want to help in any way.
>
> Thanks.
>
> [1] https://releases.openstack.org/teams/cinder.html
>
> [2] https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1583009

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Hi,

The HA A/A work can be thought of as having 2 different parts, one is
the core functionality in Cinder and the other is the part relative to
the drivers.

The BP for the feature has been tracking the core functionality, which
can be considered as done, now we need to start working on the
individual drivers to ensure that they support HA A/A operations.

For this we are going to write a list of tests to help vendors determine
the readiness state of their drivers and a guide explaining the
different kind of locks that are available for them to use and what
mutual exclusion cases are already covered by the cinder core
functionality.

Regards,
Gorka.