Re: [openstack-dev] [nova] Migration progress

Hi, In case of live-migration reporting I'd rather go with real-time stats, queried from compute, instead of reporting this data to db first. While amount of of rpc requests/db updates is relatively small, total number of such requests depends on amount of active migrations. While realtime data

Re: [openstack-dev] [nova] Migration progress

On 02/04/2016 11:02 PM, Bhandaru, Malini K wrote: Another thought, for such ephemeral/changing data, such as progress, why not save the information in the cache (and flush to database at a lower rate), and retrieve for display to active listeners/UI from the cache. Once complete or aborted, of

Re: [openstack-dev] [nova] Migration progress

I think we can add a config option for this and set a theoretical proper default value, we also add help messages to inform the the user about how inappropriate value of this config option will effect the performance. On Wed, Feb 3, 2016 at 7:45 PM, Daniel P. Berrange

Re: [openstack-dev] [nova] Migration progress

ilto:berra...@redhat.com] Sent: Wednesday, February 03, 2016 11:46 AM To: Paul Carlton <paul.carlt...@hpe.com> Cc: Feng, Shaohe <shaohe.f...@intel.com>; OpenStack Development Mailing List (not for usage questions) <openstack-dev@lists.openstack.org> Subject: Re: [openstack-de

Re: [openstack-dev] [nova] Migration progress

On 2016年02月05日 12:02, Bhandaru, Malini K wrote: I agree with Daniel, keep the periods consistent 5 - 5 . Another thought, for such ephemeral/changing data, such as progress, why not save the information in the cache (and flush to database at a lower rate), and retrieve for display to

Re: [openstack-dev] [nova] Migration progress

On Wed, Feb 03, 2016 at 10:44:36AM +, Daniel P. Berrange wrote: > On Wed, Feb 03, 2016 at 10:37:24AM +, Koniszewski, Pawel wrote: > > Hello everyone, > > > > On the yesterday's live migration meeting we had concerns that interval of > > writing migration progress to the database is too

Re: [openstack-dev] [nova] Migration progress

On Wed, Feb 03, 2016 at 10:37:24AM +, Koniszewski, Pawel wrote: > Hello everyone, > > On the yesterday's live migration meeting we had concerns that interval of > writing migration progress to the database is too short. > > Information about migration progress will be stored in the database

[openstack-dev] [nova] Migration progress

Hello everyone, On the yesterday's live migration meeting we had concerns that interval of writing migration progress to the database is too short. Information about migration progress will be stored in the database and exposed through the API (/servers//migrations/). In current proposition [1]

Re: [openstack-dev] [nova] Migration progress

> -Original Message- > From: Daniel P. Berrange [mailto:berra...@redhat.com] > Sent: 03 February 2016 10:49 > To: OpenStack Development Mailing List (not for usage questions) > Cc: Feng, Shaohe > Subject: Re: [openstack-dev] [nova] Migration progress > > On We

Re: [openstack-dev] [nova] Migration progress

On 03/02/16 10:49, Daniel P. Berrange wrote: On Wed, Feb 03, 2016 at 10:44:36AM +, Daniel P. Berrange wrote: On Wed, Feb 03, 2016 at 10:37:24AM +, Koniszewski, Pawel wrote: Hello everyone, On the yesterday's live migration meeting we had concerns that interval of writing migration

Re: [openstack-dev] [nova] Migration progress

On Wed, Feb 03, 2016 at 11:27:16AM +, Paul Carlton wrote: > On 03/02/16 10:49, Daniel P. Berrange wrote: > >On Wed, Feb 03, 2016 at 10:44:36AM +, Daniel P. Berrange wrote: > >>On Wed, Feb 03, 2016 at 10:37:24AM +, Koniszewski, Pawel wrote: > >>>Hello everyone, > >>> > >>>On the

Re: [openstack-dev] [nova] Migration progress

Hi Paul, Comments inline: 2015-11-23 16:36 GMT+08:00 Paul Carlton : > John > > At the live migration sub team meeting I undertook to look at the issue > of progress reporting. > > The use cases I'm envisaging are... > > As a user I want to know how much longer my instance

Re: [openstack-dev] [nova] Migration progress

On 23 November 2015 at 08:36, Paul Carlton wrote: > John > > At the live migration sub team meeting I undertook to look at the issue > of progress reporting. > > The use cases I'm envisaging are... > > As a user I want to know how much longer my instance will be migrating >

Re: [openstack-dev] [nova] Migration progress

On 23/11/15 11:02, John Garbutt wrote: On 23 November 2015 at 08:36, Paul Carlton wrote: John At the live migration sub team meeting I undertook to look at the issue of progress reporting. The use cases I'm envisaging are... As a user I want to know how much longer

Re: [openstack-dev] [nova] Migration progress

On Mon, Nov 23, 2015 at 08:36:32AM +, Paul Carlton wrote: > John > > At the live migration sub team meeting I undertook to look at the issue > of progress reporting. > > The use cases I'm envisaging are... > > As a user I want to know how much longer my instance will be migrating > for. >

[openstack-dev] [nova] Migration progress

John At the live migration sub team meeting I undertook to look at the issue of progress reporting. The use cases I'm envisaging are... As a user I want to know how much longer my instance will be migrating for. As an operator I want to identify any migration that are making slow progress so