JChannel instantiation taking too long

[Fábio Anjos]

Hi,

I am a newbie with JGroup, so sorry if that's an obvious question.
I am trying to run the example (SimpleChat) in the tutorial. It works, but the problem is that the JChannel takes 2 minutes to be instantiated, and channel.connect(), one minute.
Do you have any idea about what's going on?
Thanks in advance!

[Bela Ban]

No, unless you provide more information, e.g.:
- Version
- Trace logs
- Config

[Fábio Anjos]

Hi Bela,
Thanks for answering!
Well, I am using jgroups-3.2.7.Final.jar with default udp configuration.

After connecting, this is printed on sdout:

-------------------------------------------------------------------
GMS: address=SWN005-63846, cluster=ChatCluster, physical address=2801:84:0:1055:3ca3:c2d5:269b:9244:57508
-------------------------------------------------------------------
** view: [SWN005-63846|0] [SWN005-63846]

Is there any way I can give you more information?
Thanks again!

[Bela Ban]

So the members don't find each other. That's ok, but it shouldn't take long. Did you change the default config ?
You're using IPv6, is your box configured for it ? If not, use IPv4 by setting -Djava.net.preferIPv4Stack=true

[Bela Ban]

If this still doesn't work, use TRACE logging for org.jgroups and post the 2 logs for me to download somewhere

[Fábio Anjos]

I didn't change the default configuration and the same thing happened with IPv4.
You can download trace log here.

Sorry, I don't know what you mean by 2 logs. I was able to get only one.

[Bela Ban]

Something's seriously wrong on your box: looking at your logs I can see that between reading the config file and setting the properties in UDP it takes 28 seconds ! Then another 20 seconds to start the stack, and this goes on.
This process is crawling, so no wonder does it not find anyone else, I guess the CPU is topping out at 100%.

[Fábio Anjos]

Ok Bela.
I am going to test it in another computer.
Thanks!