I am aware of this work, in fact I reused a column (pci_stats) in the compute_nodes table to store a JSON blob. I track the resource in the resource_tracker and update the column and then use the blob in a filter. Maybe I should reformulate my question, How can I add a column to the table and use it in resource_tracker without breaking something ?
Best regards, 2013/12/2 <[email protected]> > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 02 Dec 2013 12:06:21 -0500 > From: Russell Bryant <[email protected]> > To: [email protected] > Subject: Re: [openstack-dev] [nova][database] Update compute_nodes > table > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > On 12/02/2013 11:47 AM, Abbass MAROUNI wrote: > > Hello, > > > > I'm looking for way to a add new attribute to the compute nodes by > > adding a column to the compute_nodes table in nova database in order to > > track a metric on the compute nodes and use later it in nova-scheduler. > > > > I checked the sqlalchemy/migrate_repo/versions and thought about adding > > my own upgrade then sync using nova-manage db sync. > > > > My question is : > > What is the process of upgrading a table in the database ? Do I have to > > modify or add a new variable in some class in order to associate the > > newly added column with a variable that I can use ? > > Don't add this. :-) > > There is work in progress to just have a column with a json blob in it > for additional metadata like this. > > https://blueprints.launchpad.net/nova/+spec/extensible-resource-tracking > https://wiki.openstack.org/wiki/ExtensibleResourceTracking > > -- > Russell Bryant >
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