[openstack-dev] [oslo][devstack][all] ZooKeeper vs etcd for Tooz/DLM

Mike Perez thingee at gmail.com
Sat Mar 18 23:48:44 UTC 2017

On 12:35 Mar 14, Jay Pipes wrote:
> On 03/14/2017 08:57 AM, Julien Danjou wrote:
> >On Tue, Mar 14 2017, Davanum Srinivas wrote:
> >
> >>Let's do it!! (etcd v2-v3 in tooz)
> >
> >Hehe. I'll move that higher in my priority list, I swear. But anyone is
> >free to beat me to it in the meantime. ;)
> A weekend experiment:
> https://github.com/jaypipes/os-lively
> Not tooz, because I'm not interested in a DLM nor leader election library
> (that's what the underlying etcd3 cluster handles for me), only a fast
> service liveness/healthcheck system, but it shows usage of etcd3 and Google
> Protocol Buffers implementing a simple API for liveness checking and host
> maintenance reporting.
> My plan is to push some proof-of-concept patches that replace Nova's
> servicegroup API with os-lively and eliminate Nova's use of an RDBMS for
> service liveness checking, which should dramatically reduce the amount of
> both DB traffic as well as conductor/MQ service update traffic.

As Monty has mentioned, I'd love for us to decide on one thing. As being
a moderator of that discussion I was trying not to be one-sided.

Whether or not a decision was made 1.5 years ago, the community that was
present at that time of the decision at the summit decided on an abstraction
layer to have options. Forcing an option on the community without gathering
feedback of what the community currently looks like is not a good idea.

I'd recommend if you want to make this base service, start the discussions in
somewhere other than the dev list, like the Forum.

Mike Perez
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170318/e03fa9f7/attachment.pgp>

More information about the OpenStack-dev mailing list