Tobe,
The BP for the feature that added replica_count is here -
https://github.com/openstack/trove-specs/blob/master/specs/kilo/replication-v2.rst
Your suggestion for changing the semantic of the API is interesting – I would
interested to know what others in the community thought about this as well.
Maybe you could file a BP and suggest this improvement?
Regards,
Doug
From: 陈迪豪 chendi...@unitedstack.commailto:chendi...@unitedstack.com
Reply-To: OpenStack List
openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org
Date: Thursday, August 13, 2015 at 4:12 AM
To: OpenStack List
openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org
Subject: Re: [openstack-dev] [trove]Implement the API to createmasterinstance
and slave instances with one request
We have read the code of replica_count and it's like what I thought.
We have an suggestion to extend this feature. When users set slave_of_id and
replica_count at the same time, we just create replica instances. If they use
replica_count without using slave_of_id, we should create an master
instance for them and some replica instances of it.
For example, trove create $name --replica-of $id --replica_count=2 will
create 2 replica instances. And trove create $name --replica_count=2 will
create 1 master instance and 2 replica instances.
What do you think Doug?
Regards,
tobe from UnitedStack
-- Original --
From: 陈迪豪chendi...@unitedstack.commailto:chendi...@unitedstack.com;
Date: Thu, Aug 13, 2015 12:25 PM
To:
openstack-dev@lists.openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org;
Subject: Re: [openstack-dev] [trove]Implement the API to createmasterinstance
and slave instances with one request
Thanks Doug.
It's really helpful and we need this feature as well. Can you point out the bp
or patch of this?
I think we will add --replica-count parameter within trove create request. So
trove-api will create trove instance(aync create nova instance) and then create
some replica trove instances(aync create nova instances). This is really useful
for web front-end developers to create master and replica instances in the same
time(they don't want to send multiple requests by themselves).
Regards,
tobe from UnitedStack
-- Original --
From: Doug Shelleyd...@tesora.commailto:d...@tesora.com;
Date: Wed, Aug 12, 2015 10:21 PM
To:
openstack-dev@lists.openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org;
Subject: Re: [openstack-dev] [trove]Implement the API to create masterinstance
and slave instances with one request
As of Kilo, you can add a —replica-count parameter to trove create —replica-of
to have it spin up multiple mysql slaves simultaneously. This same construct is
in the python/REST API as well. I realize that you still need to create a
master first, but thought I would point this out as it might be helpful to you.
Regards,
Doug
From: 陈迪豪 chendi...@unitedstack.commailto:chendi...@unitedstack.com
Reply-To: OpenStack List
openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org
Date: Tuesday, August 11, 2015 at 11:45 PM
To: OpenStack List
openstack-dev@lists.openstack.orgmailto:openstack-dev@lists.openstack.org
Subject: [openstack-dev] [trove]Implement the API to create master instance and
slave instances with one request
Now we can create mysql master instance and slave instance one by one.
It would be much better to allow user to create one master instance and
multiple slave instances with one request.
Any suggestion about this, the API design or the implementation?
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