Allen Wittenauer wrote:
On 2/19/10 11:08 AM, "Edward Capriolo" <[email protected]> wrote:
Now, imagine if this was a 6 node hadoop systems with 8 disks a node,
and we had to do a firmware updates. Wow! this would be easy. We could
accomplish this with no system-wide outage, at our leisure. With a
file replication factor of 3 we could hot swap disks, or even safely
fail an entire node with no outage.
... except for the NN and JT nodes. :)
or DNS.
That plane crash in Palo Alto last week took out some of our wifi user
authentication stuff I needed in the UK to get my laptop on the network
in a meeting room, thus forcing me to pay attention instead.
Remember, there's always a SPOF.
-steve
