Thanks for your notice. I tested with JGroups sample. But, it worked with the current routing table. And, today I sent an email to the network administrator to check out the physical switch setting. As you said, it might filter UDP milticasting packets. Thanks anyway.
I am waiting from a reply from the admin. And, in the worst case, I have to setup tcpdump to trace all network stacks and routes. On Wed, Oct 22, 2008 at 10:55 AM, Emmanuel Cecchet <[EMAIL PROTECTED]>wrote: > Hi, > >> After showing this error, two controllers are partitioned. >> > Actually they never saw each other and they were never in a group. > Make sure that your switch supports UDP multicast. You can use the JGroups > demo and test your network config until the demo works. Once you have your > network settings right, you can try to use Sequoia. > If you are using Linux, make sure that your kernel supports IP multicast. > Use a tool like tcpdump or ethereal to check how packets are routed on your > machine. > > Hope this helps, > Emmanuel > > >> I am using Appia for UDP multicasting. When I type "enable <backend>" from >> the other controller, >> the prompt is stuck and the console shows a bunch of >> nakfifo.multicast.NakFifoMulticastSession nacked. >> And then, controllers are partitioned each other. They don't see each >> other finally. >> >> I was testing how to replicate a virtual database to two controllers. Each >> virtual database conf. was setup to use one backend of a different node, >> with RAIDb-1 type. >> >> First time, I tries to solve this problem by using 'JGroups'. But, jgroups >> also was stuck at 'enabling the backend'. >> So, I moved to 'Appia'. Appia seemed to work with TCP setup. Yes, it >> worked. But, it does not work with UDP multicasting. >> >> I turned off firewalls. So, this is not firewall problem. >> >> I added the entry in routing table, such as: >> /sbin/route add -net 224.0.0.0 <http://224.0.0.0> netmask 240.0.0.0 < >> http://240.0.0.0> dev eth2 >> >> Following is my routing table of a controller >> >> Kernel IP routing table >> Destination Gateway Genmask Flags Metric Ref Use >> Iface >> 10.60.10.0 <http://10.60.10.0> * 255.255.255.0 < >> http://255.255.255.0> U 0 0 0 eth0 >> 192.168.10.0 <http://192.168.10.0> * 255.255.255.0 < >> http://255.255.255.0> U 0 0 0 eth2 >> 224.0.0.0 <http://224.0.0.0> * 240.0.0.0 < >> http://240.0.0.0> U 0 0 0 eth2 >> default 10.60.10.1 <http://10.60.10.1> 0.0.0.0 < >> http://0.0.0.0> UG 0 0 0 eth0 >> >> Actually, I wanted to use gigabit ethernet for all products communication. >> So, I forwarded gossip and udp packets to eth2, gigbit ethernet. When I used >> TCP setup, it used eth0 wholly. What is the problem? >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Sequoia mailing list >> [email protected] >> https://forge.continuent.org/mailman/listinfo/sequoia >> > > > -- > Emmanuel Cecchet > FTO @ Frog Thinker Open Source Development & Consulting > -- > Web: http://www.frogthinker.org > email: [EMAIL PROTECTED] > Skype: emmanuel_cecchet > > _______________________________________________ > Sequoia mailing list > [email protected] > https://forge.continuent.org/mailman/listinfo/sequoia > -- 여호와는 네게 복을 주시고 너를 지키시기를 원하며 여호와는 그 얼굴을 네게 비추사 은혜 베푸시기를 원하며 여호와는 그 얼굴을 네게로 향하여 드사 평강 주시기를 원하노라 (민수기 6:24-26)
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