On 2014-01-11 08:30, Tom Limoncelli wrote:
As far as what Andrew Hume pointed out... the unspoken bad news about cloud computing is that the networking aspects are not very mature and most hosting systems have unpredictable network quality. I would be interested if you could run the same test from EC2 and Google Compute Engine.
Yes! This was a huge eye opener for me. Back in the days of owning your computing space, network was the one problem that had been solved. It was redundant, fast, reliable.
One of my first job in the cloud was trying to use a database cluster product that was written with the assumption that the network was reliable (otherwise... how can a node know how the other nodes are doing?). We basically had to switch down to one node, we had a network glitch at the minimum every third day, and this particular product no longer trusted nodes from which it had been disconnected...
I noticed the newer generation of cluster (e.g.: ElasticSearch) are a lot more forgiving, both in terms of delay and repairing the cluster.
-- Yves. _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
