Thanks, both of you, for the feedback. I'm still troubleshooting and I'll focus on the zbeacon. I'll let you know as I make progress, and perhaps a patch. -Steve
-----Original Message----- From: zeromq-dev-boun...@lists.zeromq.org [mailto:zeromq-dev-boun...@lists.zeromq.org] On Behalf Of Arnaud Loonstra Sent: Friday, May 30, 2014 11:07 AM To: ZeroMQ development list Subject: Re: [zeromq-dev] Zyre Wi-Fi Rejoin Issue Indeed, this is a known problem. There's also the problem when using multiple NIC's. I did a very simple workaround in Pyre which tries on e more time to connect. This is not enough though but I haven't had situations yet where this was a real showstopper. Then again I'm not using it in production yet. A patch would be welcome :) I'm willing to think along Rg, Arnaud On 05/30/2014 10:00 AM, Pieter Hintjens wrote: > This is (I think) a known issue with Zyre or rather zbeacon. When a > device leaves and rejoins the wifi network, its interface can change, > and its address can change. zbeacon and or zyre_node does not detect > or handle this (yet). The best solution is IMO to detect the break and > then destroy and recreate the beacon. It should not be necessary to > take down the entire Zyre node, however it's possible commands will be > lost during the break. > > On Thu, May 29, 2014 at 10:21 PM, Steve Rasmussen > <steve.rasmus...@mvaero.com> wrote: >> I’m putting together a system that uses ZeroMQ to communicate >> between moving vehicles over Wi-Fi. I use Zyre to discover, make the >> connections, and send the information. >> >> >> >> This all works well, but when the Wi-Fi connection is broken and is >> reestablished the zyre entities, that were connected before the >> break, do not reestablish high level, i.e. whisper, communications. >> They do exchange beacons and act like they are connected, but the >> zyre commands, e.g. START, don’t get through. >> >> >> >> I’ve included some test results in the pastebin: >> >> http://pastebin.com/qYVHCEZP >> >> >> >> For the tests I modified the tools/zpinger program to continually >> send out pings. The source is included in the pastebin. I ran my >> modified zpinger on two laptops and a zlogger on one laptop. To break >> the connection, I moved one laptop away until the zyre entity exited >> and the Wi-Fi connection was broken. I then moved the laptop back in range >> to reestablish the connection. >> I’ve included logs in the pastebin. >> >> >> >> The two zyre entities did not reestablish high level communications. >> After one test, I started another modified zpinger, not in the logs, >> and it connected, exchanged pings, with both original zyre entities. >> >> >> >> I’ll stop now to keep this short. I anyone has any ideas or needs >> more information, please let me know. >> >> >> >> Thanks, >> >> >> >> Steve -- w: http://www.sphaero.org t: http://twitter.com/sphaero g: http://github.com/sphaero i: freenode: sphaero_z25 _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev
