[Linaro-validation] visualizing lab status
michael.hudson at linaro.org
Wed Apr 4 00:50:04 UTC 2012
Thinking about various lab health and other issues has made me want to
see the current and historical state of a lab in a more sohpisticated
I've messed around in inkscape a bit to show the sort of thing I mean --
can you guess what the attached image is meant to represent? I hope
it's fairly obvious, or there isn't much point in all this.
To be clear:
* each board gets a horizontal line
* time increases along the x-axis
* at a given moment, the line being narrow for a board indicates no job
* a narrow green line means IDLE, a narrow grey line means OFFLINE
* a wider line means a job is running, or alternatively jobs are
represented by fatter blobs
* a red blob is a job that did not complete
* a green blob is a job that completed ok
Ideally, the view would support zooming and scrolling.
Mousing over a job should display a summary of the job, and clicking it
should go to the log page.
We could probably have a checkbox that would hide non-healthcheck jobs.
We might want a variant that has a line for each device type, and
somehow aggegrates the jobs running on different boards. Not sure how
this would work though.
I think we are storing all the information we need to create this view
(in the DeviceStateTransition table).
Do you guys think we should create this view? I would really like to
have it, but I don't have a clear intuition on how hard it would be. I
think it would make sense to mostly implement it in js, using some kind
of js library. I don't know of any library that would specifically help
(is there a name for this sort of visualization I can google for?) but
I'm sure it could be done with raphael (http://raphaeljs.com/) and maybe
d3 (http://mbostock.github.com/d3/) but I'm not really super up-to-date
on the latest whizzery in js visualization space.
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