On Tuesday 15 September 2009 15:15:47 freenet wrote:
> Every few days my node just looses all it's connections.
> 
> Restarting the node does not solve the problem. Usually I have to shut  
> the node down completely for about two days. When I restart it, after  
> about 10 minutes it starts getting connections. One time I downloaded  
> a new seednodes.fref file and that seemed to get the connections  
> started again.
> 
> I think there is a bug where the node keeps trying to contact one or  
> two nodes on IP addresses that are no longer valid. For example, this  
> time I see the following two errors over and over and over and over  
> again in the logs:
> 
> Sep 15, 2009 04:10:05:527 (freenet.io.comm.UdpSocketHandler,  
> PacketSender thread for 60973, ERROR): Error while sending packet to  
> 128.222.3.103:18143: java.io.IOException: No route to host
> java.io.IOException: No route to host
>       at java.net.PlainDatagramSocketImpl.send(Native Method)
>       at java.net.DatagramSocket.send(DatagramSocket.java:612)
>       at freenet.io.comm.UdpSocketHandler.sendPacket(UdpSocketHandler.java: 
> 247)
>       at freenet.node.FNPPacketMangler.sendPacket(FNPPacketMangler.java:1794)
>       at freenet.node.FNPPacketMangler.sendAuthPacket(FNPPacketMangler.java: 
> 1781)
>       at  
> freenet.node.FNPPacketMangler.sendAnonAuthPacket(FNPPacketMangler.java: 
> 1739)
>       at  
> freenet.node.FNPPacketMangler.sendJFKMessage1(FNPPacketMangler.java:839)
>       at freenet.node.FNPPacketMangler.sendHandshake(FNPPacketMangler.java: 
> 2876)
>       at freenet.node.PacketSender.realRun(PacketSender.java:247)
>       at freenet.node.PacketSender.run(PacketSender.java:126)
>       at java.lang.Thread.run(Thread.java:637)
>       at freenet.support.io.NativeThread.run(NativeThread.java:100)
> Sep 15, 2009 04:10:10:555 (freenet.node.PeerManager, PacketSender  
> thread for 60973, NORMAL): Connected: 0  Routing Backed Off: 0  Too  
> New: 0  Too Old: 0 Disconnected: 14  Never Connected: 18  Disabled: 0   
> Bursting: 1  Listening: 0  Listen Only: 0  Clock Problem: 0   
> Connection Problem: 0  Disconnecting: 0
> Sep 15, 2009 04:10:13:471 (freenet.io.comm.UdpSocketHandler,  
> PacketSender thread for 60973, ERROR): Error while sending packet to  
> 5.4.174.104:60115: java.io.IOException: No route to host
> java.io.IOException: No route to host
>       at java.net.PlainDatagramSocketImpl.send(Native Method)
>       at java.net.DatagramSocket.send(DatagramSocket.java:612)
>       at freenet.io.comm.UdpSocketHandler.sendPacket(UdpSocketHandler.java: 
> 247)
>       at freenet.node.FNPPacketMangler.sendPacket(FNPPacketMangler.java:1794)
>       at freenet.node.FNPPacketMangler.sendAuthPacket(FNPPacketMangler.java: 
> 1781)
>       at  
> freenet.node.FNPPacketMangler.sendAnonAuthPacket(FNPPacketMangler.java: 
> 1739)
>       at  
> freenet.node.FNPPacketMangler.sendJFKMessage1(FNPPacketMangler.java:839)
>       at freenet.node.FNPPacketMangler.sendHandshake(FNPPacketMangler.java: 
> 2876)
>       at freenet.node.PacketSender.realRun(PacketSender.java:247)
>       at freenet.node.PacketSender.run(PacketSender.java:126)
>       at java.lang.Thread.run(Thread.java:637)
>       at freenet.support.io.NativeThread.run(NativeThread.java:100)
> 
> 
> My Internet connection is working fine. Those two IP addresses are not  
> reachable and the node is stuck in a loop trying to get to them. One  
> other temporary fix was to edit the seednodes.fref file and remove the  
> nodes with the unreachable IP addresses.
> 
> Freenet 0.7.5 Build #1233 build01233
> Freenet-ext Build #26 r23771
> 
> # Java Version: 1.6.0_15
> # JVM Vendor: Apple Inc.
> # JVM Version: 14.1-b02-92
> # OS Name: Mac OS X
> # OS Version: 10.5.8
> # OS Architecture: x86_64
> 
> Sure seems like a serious bug to me.

Sounds like a serious bug in your internet connection. We do indeed repeatedly 
send handshaking packets to all our peers' IP addresses and this is normal and 
expected behaviour if two of them have invalid addresses.

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