Tobias, I would also recommend to turn off Cassandra for now and confirm that the bottleneck is not in Ignite.
— Denis > On Nov 13, 2017, at 7:48 AM, Mikhail <[email protected]> wrote: > > Hi Tobias, > > if you need to do an initial loading of a big amount of data, please read > the following section: > https://apacheignite.readme.io/docs/streaming--cep > > >> BUT when I add one more client to try to increased (scale horizontally) >> I clearly see that the INSERT speed decreases on the first client by a > magnitude >> (dropping about 7,500 inserts/second from it’s 19,000 !!!) > > you didn't scale it horizontally, you just added more load for one ignite > server, if you need to scale it, you need > to add more server nodes, you set backup==1, that means that you need to add > at least 2 more nodes that see that it scales horizontally and linearly. > >> Although the total speed increases to around ~25,000 INSERTs / second, this > is still not good, and does not scale very well. > > ignite scales pretty good, looks like *one* ignite server node reaches its > limit, check cpu loading on the server node, I believe there would be 100% > CPU utilization. So to scale it you need to add server nodes that will store > data, because with you set up there's only 1 node that tries to handle > traffic from 4 client nodes. > Also, you might be reach network IO limit, anyway in this case you also need > to add more server nodes to split network a traffic from 4 clients to > several server nodes. > > > > > -- > Sent from: http://apache-ignite-users.70518.x6.nabble.com/
