-Re: Altering table column family attributes without disabling the table
You could always set hbase.online.schema.update.enable to true on your
master, restart it (but not the cluster), and you could do what you
are describing... but it's a risky feature to use before 0.96.0.
Did you also set hbase.replication to true? If not, you'll have to do
it on the region servers and the master via a rolling restart.