As far as I know, those 75K nodes are not in a single cluster. If memory serves correctly (and this article seems to indicate that it does http://www.techrepublic.com/article/apples-secret-nosql-sauce-includes-a-hefty-dose-of-cassandra/ <http://www.techrepublic.com/article/apples-secret-nosql-sauce-includes-a-hefty-dose-of-cassandra/>), you’ll see clusters of 1,000 nodes.
Things start to get a little hairy once you go above a couple hundred nodes. I would rather run 5 100 node clusters than a single 500 node cluster. In theory, once you’ve built out the tooling to manage 2 clusters you should be able to apply it to manage 20 (reality always gets in the way though…) Jon > On Aug 21, 2017, at 9:15 AM, techpyaasa . <techpya...@gmail.com> wrote: > > Thanks lot for reply :) > > On Aug 21, 2017 6:44 PM, "Vladimir Yudovin" <vla...@winguzone.com > <mailto:vla...@winguzone.com>> wrote: > Actually there are clusters of thousandths nodes: Some of the largest > production deployments include Apple's, with over 75,000 nodes storing over > 10 PB of data <http://cassandra.apache.org/> > > Best regards, Vladimir Yudovin, > Winguzone <https://winguzone.com/?from=list> - Cloud Cassandra Hosting > > > ---- On Mon, 21 Aug 2017 08:35:37 -0400 techpyaasa . <techpya...@gmail.com > <mailto:techpya...@gmail.com>> wrote ---- > > Hi > > Is there any limit on having number of nodes in c* cluster. > Right now we have c*-2.1.17 cluster with 3 DCs each DC with 3 groups & each > group has 21 nodes. > > We wanted to increase the cluster capacity by adding 6 nodes per group as > many of nodes disk usage crossed 65%. > > So just wanted to clarify is there any limit/drawback having huge cluster/too > many nodes in a c* cluster > > Thanks in advance > TechPyaasa >
