Fwd: Upgrading master hardware

[Mark]

We will be adding more memory into our master node in the near future. 
We generally don't mind if our map/reduce jobs are unable to run for a 
short period but we are more concerned about the impact this may have on 
our HBase cluster. Will HBase continue to work will hadoops name-node 
and/or HMaster is down? If not where are some ways we could minimize our 
downtime? Thanks