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Duplicate Messages from Razberry via Java

Posted: 15 Apr 2014 04:01
by ngarrett
Hello,

I'll preface this by saying I am not sure if this is a Razberry problem or not. I am running the Razberry with OpenHAB. What we're finding is that multiple messages are received from the Razberry (we think) for a single send. Here's an example:

It looks like the RPi (or something!) is returning multiple responses to a single request -:

For example, right at the beginning of the log, we send out this request -:

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2014-04-13 20:13:44 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveSendThread[:763]- Sending Message = 01 03 00 07 FB 
This is the only time that this request is sent, but the response comes in 4 times

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2014-04-13 20:13:44 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:46 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:49 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:50 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
The whole thread about this is here: https://groups.google.com/forum/#!topic ... Wh_iurrIIo. If you look at known issues, on this post, you'll see this listed again here, with no resolution: https://github.com/openhab/openhab/wiki/Z-Wave-Binding.

Z-Way seems to work perfectly. Any thoughts on whether this could be related to the Razberry?

Re: Duplicate Messages from Razberry via Java

Posted: 16 Apr 2014 23:20
by PoltoS
Looks like OpenHUB i not ACKing the packet, so the dongle sned it three times and abandon.

Re: Duplicate Messages from Razberry via Java

Posted: 21 Apr 2014 02:43
by ngarrett
Check out this post: viewtopic.php?f=3422&t=20333&start=10

Between this post and the discussion on the OpenHAB forums, we're wondering if it's feasible that an RPi under load can lose these packets, and thus cause network instability. Is this possible/feasible?

I am on 1.5.0-rc3 currently with 37 nodes in my network.

Re: Duplicate Messages from Razberry via Java

Posted: 26 Apr 2014 01:15
by PoltoS
I don't think it is possible. But indeed the log suggests this. Since OpenHAB and Z-Way do send ACK, it is probably lost by the Z-Wave chip. Can you try another board/