you have to use multiple data centers to really deliver 4 or 5 9's of service
On Wed, Jun 22, 2011 at 7:09 PM, Edward Capriolo <edlinuxg...@gmail.com> wrote: > Committing to that many 9s is going to be impossible since as far as I > know no internet service provier will sla you more the 2 9s . You can > not have more uptime then your isp. > > On Wednesday, June 22, 2011, Chris Burroughs <chris.burrou...@gmail.com> > wrote: >> On 06/22/2011 05:33 PM, Les Hazlewood wrote: >>> Just to be clear: >>> >>> I understand that resources like [1] and [2] exist, and I've read them. I'm >>> just wondering if there are any 'gotchas' that might be missing from that >>> documentation that should be considered and if there are any recommendations >>> in addition to these documents. >>> >>> Thanks, >>> >>> Les >>> >>> [1] http://www.datastax.com/docs/0.8/operations/index >>> [2] http://wiki.apache.org/cassandra/Operations >>> >> >> Well if they new some secret gotcha the dutiful cassandra operators of >> the world would update the wiki. >> >> The closest thing to a 'gotcha' is that neither Cassandra nor any other >> technology is going to get you those nines. Humans will need to commit >> to reading the mailing lists, following JIRA, and understanding what the >> code is doing. And humans will need to commit to combine that >> understanding with monitoring and alerting to figure out all of the "it >> depends" for your particular case. >> >
