Open Stack

On Wed, Nov 14, 2012 at 3:48 AM, Jiang, Yunhong <yunhong.jiang at intel.com>wrote:

> > I uploaded a patch as https://review.openstack.org/#/c/15952/ for
> > discussion/review. Should be "git review -D", but that command failed on
> my
> > environment.
> >
> > There are two issues on the rpc api method as described in the
> > patch/comments. The nic/disk metadata possibly is available through
> > extending nova-compute rpc_api, but for the instance object, I didn't
> find a
> > clean solution.
>
> I updated new patchset.
> Thanks for Doug's patch for libvirt, which remind me that I don't need
> pass the real nova instance object, so I faked one. Considering we only
> depends on one interface from rpcapi, I think it's feasible for us to make
> sure this faked object is not broken.
>
> So the issue left is the metadata. Followed is the information we can got
> from get_diagnostics. Although it provide all the static information that's
> presented by current libvirt pollster, it does not include any information
> for the virtual block/nic devices ,like MAC, IP, filter, DHCPSERVER, while
> is provided by current libvirt pollster. Also I didn't find method to get
> such information, other than call nova libvirt driver directly.
>
> So my question is, should we create another rpcapi for this monitor
> specific purpose? I'd prefer to yes, since that will make life easier.
>

That would be a new RPC API call in nova, right? Asking the compute agent
seems like a cleaner way to collect this information than importing nova
code ourselves. That has caused headaches several times already.

Doug


>
> +------------------+------------+
> | Property         | Value      |
> +------------------+------------+
> | cpu0_time        | 7580000000 |
> | memory           | 524288     |
> | vda_errors       | -1         |
> | vda_read         | 262144     |
> | vda_read_req     | 112        |
> | vda_write        | 5606400    |
> | vda_write_req    | 367        |
> | vnet0_rx         | 1959353    |
> | vnet0_rx_drop    | 0          |
> | vnet0_rx_errors  | 0          |
> | vnet0_rx_packets | 17673      |
> | vnet0_tx         | 58983      |
> | vnet0_tx_drop    | 0          |
> | vnet0_tx_errors  | 0          |
> | vnet0_tx_packets | 263        |
> +------------------+------------
>
>
> Thanks
> --jyh
>
>
>
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