On Mon, Feb 22, 2010 at 7:23 AM, Steve Loughran <[email protected]> wrote: > 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 >
Sure there is SPOF's all over depending on your paranoia level. I was looking at the virtues of decentralized storage (hdfs) vs big disk array. I just thought I would give a funny update. The manufacturer now tells us if we do not upgrade the firmware we void our warranty. Also we tried to smart fail one of the disks out and the management console locked up. HDFS +2 :)
