On Wed, Sep 14, 2016 at 1:49 PM, jerome wrote:
> I was curious if anyone had any kind of statistics or ballpark figures on
> how long it takes information to propagate through a cluster with Gossip?
> I'm particularly interested in how fast information about the liveness of a
> node spreads. For e
Gossip propagation is generally best modelled by epidemic algorithms.
Luckily for us Cassandra's gossip protocol is fairly simply.
Cassandra will perform one Gossip Task every second. Within each gossip
task it will randomly gossip with another available node in the cluster, it
will also possibly
> Is a minute a reasonable upper bound for most clusters?
I have no numbers and I'm sure this differs depending on how large your
cluster is. We have a small cluster of around 12 nodes and I statuses
generally propagate in under 5 seconds for sure. So, it will definitely be
less than 1 minute.
Ch
