Re: bind_addr different from mcast_recv_sock and mcast_send_sock

Well, I've tried it on JDK 1.5.0_07-b03, and it is working properly.
Unfortunately I cannot use this JDK on the specific hardware involved
in my project: there I only have a porting of JDK 1.3 ... and it looks
like that it contains a bug that prevent correct funtionality. Anyway,
thank you very much for your support.

marcos

On 9/4/06, Bela Ban <belaban@xxxxxxxxx> wrote:
> Looks like a bug in the JDK to me. Can you try with JDK 1.4 and 5
> nevertheless, just to see whether your network setup is correct ? If you
> have the same problem, then obviously it is not a JDK bug
>
> Marco Sbodio wrote:
> > On 7/29/06, Bela Ban <belaban@xxxxxxxxx> wrote:
> >
> >> Marco Sbodio wrote:
> >>
> >>> I've enabled trace for "org.jgroups" and I've tried to debug
> >>> org.jgroups.protocols.UDP.createSockets(). I modified it adding some
> >>> log as following:
> >>>
> >>> [[
> >>> // 3. Create socket for receiving IP multicast packets
> >>> if(ip_mcast) {
> >>> // 3a. Create mcast receiver socket
> >>> mcast_recv_sock=new MulticastSocket(mcast_port);
> >>> mcast_recv_sock.setTimeToLive(ip_ttl);
> >>> tmp_addr=InetAddress.getByName(mcast_addr_name);
> >>> mcast_addr=new IpAddress(tmp_addr, mcast_port);
> >>>
> >>> if(bind_addr != null) {
> >>> log.info("*** marcos ***" + bind_addr);
> >>> mcast_recv_sock.setInterface(bind_addr);
> >>> log.info("*** marcos ***" +
> >>> mcast_recv_sock.getInterface().getHostAddress());
> >>> }
> >>> else {
> >>> log.info("*** marcos *** else");
> >>> }
> >>>
> >>> //...
> >>> }
> >>> ]]
> >>>
> >>> I use
> >>>
> >>> [[
> >>> UDP(mcast_addr=228.8.8.8;bind_addr=192.168.1.2;mcast_port=45566;ip_ttl=32;mcast_send_buf_size=64000;mcast_recv_buf_size=64000)
> >>> ]]
> >>>
> >>> and here is what I get in the log:
> >>>
> >>> [[
> >>> 2005-06-19 12:28:42,256 [DownHandler (UDP)] INFO DownHandler (UDP)
> >>> org.jgroups.protocols.UDP - *** marcos ***qbic/192.168.1.2
> >>> 2005-06-19 12:28:42,364 [DownHandler (UDP)] INFO DownHandler (UDP)
> >>> org.jgroups.protocols.UDP - *** marcos ***88.231.3.0
> >>> ]]
> >>>
> >>> so it seems that "mcast_recv_sock.setInterface(bind_addr);" has no
> >>> effect. Have you ever seen something like this before? Any ideas?
> >>>
> >> Hmm, this is interesting, can you print just:
> >> mcast_recv_sock.getInterface() ? Rather than
> >> mcast_recv_sock.getInterface().getHostAddress() ?
> >>
> >> If setting the interface on a Multicast Socket doesn't work (btw: try
> >> McastSocket.setNetworkInterface() to see if that works !), then this
> >> looks like a bug in the JDK implementation for your OS. Have you
> >> searched for that bug ?
> >>
> >>
> >
> > (sorry for the late reply: I was out of office). I've tried
> > mcast_recv_sock.getInterface() instead of
> > mcast_recv_sock.getInterface().getHostAddress() and here is the
> > result:
> >
> > [[
> > [INFO] UDP - -*** marcos *** // QBIC-371AAF64/192.168.1.4
> > [INFO] UDP - -*** marcos *** // 200.231.3.0/200.231.3.0
> > ]]
> >
> > the above output is originated by:
> >
> > [[
> > if(bind_addr != null) {
> >   log.info("*** marcos *** // " + ind_addr);
> >   mcast_recv_sock.setInterface(bind_addr);
> >   log.info("*** marcos *** // " + mcast_recv_sock.getInterface());
> > }
> > ]]
> >
> > does this really look like a bug in the JVM we're using?
> >
> > thanks
> > marcos
> >
> > p.s. I cannot thest McastSocket.setNetworkInterface() because that
> > requires JDK 1.4+ and I have JDK 1.3.1
> >
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> >
> >
>
> --
> Bela Ban
> Lead JGroups / Manager JBoss Clustering Group
> JBoss - a division of Red Hat
>
>


-- 
Marco Sbodio
perl -e 'while(++$_){print$_,$/if("x"x$_)!~/^(xx+)\1+$/}'

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642