Seek feedback: BMC console and debug info

[Zhenfei Tai]

Thanks a lot for the feedback and we're glad that it's something the
community is interested in!
We'll incorporate the advice and improve the patchset.

Jason - If you have time, could you share the findings of the
"AdditionalDataURI" schema change? I've only managed to find some slides
<https://www.dmtf.org/sites/default/files/Redfish_Diagnostic_Data_Logging_Proposal_05-2020-WIP_0.pdf>
from May.

Thanks,
Zhenfei

On Wed, Aug 26, 2020 at 1:00 PM Bills, Jason M <
jason.m.bills at linux.intel.com> wrote:

>
>
> On 8/25/2020 8:35 PM, Ed Tanous wrote:
> > Yes, this would be useful to others.  A number of commercial stacks
> > (including some I helped write) have this feature, and I had hoped
> > someone would tackle it at some point in the future.
> >
> > My only comment is I'd rather that we don't duplicate the endpoints in
> > Redfish, and have both a Console and a ConsoleDownload collection.  If
> > we need a mechanism to download the full log files, I'd recommend that
> > the Console endpoint obey an Accept header of "text/plain;
> > charset=utf-8" and an Accept-Encoding header of "gzip".  That way,
> > we're still meeting the intent of the HTTP and Redfish specs, even if
> > we're providing more data download options than they require.
> I still need to go dig into it, but I think the new Redfish schemas that
> were added to support the Dump service, added an "AdditionalDataURI"
> property that can provide a URI to download a larger set of additional
> dump data.  It may be what you need for the log file download.
>
> >
> > Other than that, yeah, sounds great, lets see the patchset.
> >
> > -Ed
> >
> > On Tue, Aug 25, 2020 at 8:24 PM Zhenfei Tai <ztai at google.com> wrote:
> >>
> >> Hi,
> >>
> >> We have worked with our vendor on a system that provides console and
> debug information, which can be useful in times of debugging BMC issues.
> >>
> >> On a high level, we use obmc-console and phosphor-debug-collector to
> collect data.
> >>
> >> obmc-console: We collect console inputs from the host and save to local
> log files (max 8 files of 1 MB size with rotation.)
> >> phosphor-debug-collector: We run this process on the BMC with no
> modification.
> >>
> >> For the interface, the data is exposed via bmcweb where there are a
> pair of URIs for console inputs and debug collector respectively.
> >> e.g.
> >>
> >> /redfish/v1/Systems/system/LogServices/Console -- Enable/disable
> console inputs data collection.
> >> /redfish/v1/Systems/system/LogServices/ConsoleDownload -- Download the
> log files in a zipped file.
> >>
> >> It will be great if we can get some feedback on whether the community
> finds such a system useful and advice to improve the design.
> >>
> >> Thanks,
> >> Zhenfei
>
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