We have the same network topology of 6 hub nodes and 30+ leaf nodes. We also suffering from periodic network blockage and very high network usage of ~300mb per node a day (50mb of upload and 250 of download). This high traffic usage happens on idle network. We have 1.0.34 version on our nodes.
On Tue, Dec 11, 2018 at 12:52 PM Amit Lianson <[email protected]> wrote: > Hello, > We're suffering from sporadic network blockage(read: unable to ping > other nodes) with 1.1-pre17. Before upgrading to the 1.1-pre release, > the same network blockage also manifested itself in a pure 1.0.33 > network. > > The log shows that there are a lot of "Got ADD_EDGE from nodeX > (192.168.0.1 port 655) which does not match existing entry" and it > turns out that the mismatches were cuased by different weight received > by add_edge_h(). > > This network is consists of ~4 hub nodes and 50+ leaf nodes. Sample > hub config: > Name = hub1 > ConnectTo = hub2 > ConnectTo = hub3 > ConnectTo = hub4 > > Leaf looks like: > Name = node1 > ConnectTo = hub1 > ConnectTo = hub2 > ConnectTo = hub3 > ConnectTo = hub4 > > Back to the days of pure 1.0.33 nodes, if the network suddenly > fails(users will see tincd CPU usage goes 50%+ and unable to get ping > response from the other nodes), we can simply shutdown the hub nodes, > wait for a few minutes and then restart the hub nodes to get the > network back to normal; however, 1.1-pre release seems to autoconnect > to non-hub hosts based on the information found in /etc/tinc/hosts, which > means that the hub-restarting trick won't work. Additionally, apart > from high CPU usage, 1.1-pre tincd also starts hogging memory until > Linux OOM kills the process(memory leakage perhaps?). > > Given that many of our leaf nodes are behind NAT thus there's no > direct connection to them expect tinc tunnel, I'm wondering about if > there's any way to bring the network back to work without shutting > down all nodes? Moreover, is there any better way to pin-point the > offending nodes that introduced this symptom? > > Thanks, > A. > _______________________________________________ > tinc mailing list > [email protected] > https://www.tinc-vpn.org/cgi-bin/mailman/listinfo/tinc > -- *Vitaly Gorodetsky* Infrastructure Lead Mobile: +972-52-6420530 [email protected] 39 Haatzmaut St., 1st Floor, Haifa, 3303320, Israel
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