On Jun 14, 2010, at 10:57 AM, Russell Brown wrote: > I'm a new user of Hadoop. I have a Linux cluster with both gigabit ethernet > and InfiniBand communications interfaces. Could someone please tell me how > to switch IP communication from ethernet (the default) to InfiniBand? Thanks.
Hadoop will bind inbound connections via the interface settings in the various hadoop configuration files. Outbound connections are unbound and based solely on OS configuration. I filed a jira to fix this, but it is obviously low priority since few people run multi-nic boxes. Best bet is to down the ethernet and up the IB, changing routing, etc, as necessary.
