On Tue, Aug 02, 2011 at 05:56:25PM +0200, Steinar Midtskogen wrote:
> It's been discussed on the list before (a couple of years ago?). It
Ah, I guess I wasn't quite on the list then.
> got better, but is still there I think (I tried the latest version a
> couple of months ago). It seems quite timing dependent and related to
> frequent requests and big networks. I have a program using the C api
> which creates a lot of traffic to owserver. My problem has been that
> devices suddenly become unreadable and eventually owserver dies. I
> have weather stations at three different location, and have had the
> problem at all three locations. Eventually I've found a combination
> of owserver version and network topology that is stable for each
> location and managed.
>
> You probably need quite a few devices to get the problem.
> Unfortunately, my big 1-wire networks are all production systems, so I
> haven't been able to spend much time to debug this.
Understood, thanks for the info. In my case I only have about 20 devices, so
that's likely not enough to trigger the bug.
> > I know this also doesn't answer your question, but I recommend you go
> > wireless for your weather stuff.
>
> Yes, wireless is great for isolating the effects of lightnings, but I
> have a lot of custom sensors using 1-wire.
If they don't exist as wireless, you're indeed out of luck. You obviously
know what you're doing, while in the past I saw people with the same problem
using 1-wire devices that totally exist as wireless options and where
actually cheaper in a WMR-200 than as independent 1-wire sensors.
> It's only three years ago another lightning fried my 1-wire network
> and computers, so what I did after that was to add surge protection on
> every wire leaving the house, and to run owserver on a device
> connected to my network by wifi only.
> Now I've a lot of broken surge protectors and a dead wifi box, but at
> least some 1-wire devices survived (about 40 out of 60), my computers
> are ok and the house didn't burn down.
Ok, so you're been there, and you know what you're doing. Sorry that you
have to use 1-wire for your application and that you got hit again :( but
good to hear you were able to contain the damage somewhat.
And sorry that I asked effectively a stupid question since you fully knew
what you were doing :)
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
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