Seek feedback: BMC console and debug info

[Bills, Jason M]

On 8/29/2020 8:53 PM, Zhenfei Tai wrote:
> 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.
Sorry, I don't know much about it besides that the schema change is 
coming.  I checked on the DMTF website and it doesn't look like the new 
schema has been posted, yet.

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