On 08/11/2017 03:14 PM, Galder Zamarreño wrote: > Hi, > > Re: https://issues.jboss.org/browse/ISPN-8186 > > I've been looking at TRACE logs and what seems to happen is that is that > sometimes, when the client needs to create a new Socket, it sends using the > same localport as the Hot Rod server port. As a result, when the client sends > something to the server, it also receives it, hence it ends finding a request > instead of a response. Analysis of the logs linked in the JIRA can be found > in [1].
I've always assumed that a TCP connection is a two-end pipe, both being successfully connected to the remote side and looping back messages to the client sounds strange... have you googled if this is a bug or feature? Or is the client talking to itself only despite the server being successfully bound to listen on the port? > > What I'm not sure about is how to fix this... There are ways to potentially > pass a specific localport to a Socket [2] but this could be a bit messy: It'd > require us to generate a random local port and see if that works, making sure > that's not the server port... Clients use ephemeral ports that have limited range (32k+ on Linux?), what about making sure that the server port is out of this range? > However, I think the real problem we're having here is the fact that both the > server and client are bound to same IP address, 127.0.0.1. A simpler solution > could be a way to get the server to be in a different IP address to the > client, but what would that be that IP address and how to make sure it always > works? Bind the server to eth0? I don't think that having both on the same IP is a real problem. Testsuite should not listen on externally accessible ports, besides the fact that the computer may not have any ports (ok, that's rather theoretical nowadays) there's a security risk involved. And if the machine has firewall set to block connection to externally accessible ports (even from local addresses), the testsuite would fail. Radim > > Any other ideas? > > Cheers, > > [1] https://gist.github.com/galderz/b8549259ff65cb74505c9268eeec96a7 > [2] > http://docs.oracle.com/javase/6/docs/api/java/net/Socket.html#Socket(java.net.InetAddress,%20int,%20java.net.InetAddress,%20int) > -- > Galder Zamarreño > Infinispan, Red Hat > > > _______________________________________________ > infinispan-dev mailing list > infinispan-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/infinispan-dev -- Radim Vansa <rva...@redhat.com> JBoss Performance Team _______________________________________________ infinispan-dev mailing list infinispan-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev
