[emstar-design] Adding logfile snapshot feature

[Nithya Ramanathan]

last time i had a session with eric i  left with a long to-do list :)
however, i implemented most of his suggestions, and they ended up being
really good, useful features. so, i would say yes.

On Thu, 4 Aug 2005, Deborah Estrin wrote:

> This does sound quite useful
> Should we have a session with eric sometime
> I think the recent really cool NIMS field trip data collection to white
> mountains is a very good example of this and eric was there and would be
> able to articulate what they did and what he needs
>
>
> On 8/4/05 11:07 AM, "Nithya Ramanathan" <nithya at CS.UCLA.EDU> wrote:
>
> >
> >> Why not have processes write log data per default to a ring buffer and
> >> then when desired, redirect that data to a file. That way you have a
> >> nice, fixed memory buffer for logs, and you can easily use some
> >> mechanism such as a socket (or fusd for that matter) to access it....
> >>
> >
> >
> > this is actually what we do right now in emstar :)
> > however, what the original request was based on the need to capture
> > specific snapshot. for example, i was thinking about eric using the
> > web-server, and if he was experiencing a bug in a feature, i thought it
> > would be convenient if he could do: "start snapshot", try out whatever
> > he's trying to do, and then "stop snapshot", and then have some easy
> > way for him to send us all of the logs he captured. and maybe the "start
> > snapshot" also ups the log-level temporarily...
> >
> >
> >> Just a thought.
> >>
> >> --
> >> John Ewart
> >> PGP: 0xF820E604
> >> "Quis custodiet ipsos custodes?"
> >>
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> >>
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>
> Prof. Deborah Estrin
> Jon Postel Chair in Computer Networks
> Computer Science Department, UCLA
> Director, Center for Embedded Networked Sensing (CENS)
> 3531H Boelter Hall
> Los Angeles, CA 90095
> http://cens.ucla.edu/Estrin
> Fax: 3102063053
>
>
>