[jboss-user] [Clustering/JBoss] - Re: Network failure protection with JGroups/JBossCache

[bela@jboss.com]

// Is it possible to configure a redundant network route 
// for JGroups to fallback on?

No, not yet. We might be able to implement this with LogicalAddresses, in one of the next releases, e.g. 2.6.

However, you might be able to achieve this with help from the OS, e.g. IP Multipathing on Solaris or IP Bonding on Linux, where you have a logical NIC, which is backed up by 2 physical IP NICs, so traffic automatically uses the second NIC if the first fails. Every NIC can point to a separate network.

// Or is it possible to configure redundant multicast 
// JGroups for one JBossCache and somehow bind these 
// multicast address with different routes/nic?


You can bind to multiple NICs for incoming traffic:
- receive_on_all_interfaces="true" or
- receive_interfaces="eth0,192.168.0.2,hme2"

You can also send your traffic out over multiple NICs:
- send_on_all_interfaces
- send_interfaces="eth0,eth2"

This option doesn't load balance, but copies the *entire* traffic on every interface !

// Or is it possible to configure JGroups with two 
// physical network interfaces, so it can decide to use 
// either one of them. 

See above: use IP bonding, for example

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3975033#3975033

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3975033