On Thu, Nov 6, 2014 at 2:10 PM, Christopher Brodt
wrote:
> Yep. The "trouble" with FIOs is that they almost completely remove your
> disk throughput problems, so then you're constrained by CPU. Concurrent
> compactors and concurrent writes are two params that come to mind but there
> are likely o
This is definitely a first world problem.. having databases that are CPU
bound :-P
On Thu, Nov 6, 2014 at 1:05 PM, jeeyoung kim wrote:
> I've been running with FIOs and we've been CPU bound most of the time. But
> I'm not using native transport yet, and is hoping that it would make things
> fast
Yep. The "trouble" with FIOs is that they almost completely remove your
disk throughput problems, so then you're constrained by CPU. Concurrent
compactors and concurrent writes are two params that come to mind but there
are likely others.
@kevin. I hear you. 5TB is sort of a maximum that DataStax
I've been running with FIOs and we've been CPU bound most of the time. But
I'm not using native transport yet, and is hoping that it would make things
faster.
On Thu, Nov 6, 2014 at 12:54 PM, Christopher Brodt
wrote:
> You should get pretty great performance with those FusionIO cards. One
> thin
This was one of my biggest issues too. We were expecting to be at 5-10
nodes to start with and then 20-40 nodes in 60-90 days.
But this means we can run all of our database on 1 box :-P … but
realistically two.
Which means if one box goes offline then I’m at 50% capacity. That and I
don’t even
You should get pretty great performance with those FusionIO cards. One
thing I watch out for whenever scaling Cassandra vertically is compaction
times, which probably won't matter here. However, you have to take into
account that you lose some resiliency to failures with less nodes.
On Thu, Nov 6,
I've heard of people running dense nodes (8+ TB) using fusion I/O, but with
10GBe connections. I mean why buy a Ferrari and never leave first gear?
As far as saturating the network goes, I guess that all depends on your
workload, and how often you need to repair.
Sent from my iPhone
> On Nov 6
We’re looking at switching data centers and they’re offering pretty
aggressive pricing on boxes with fusion IO cards.
2x 1.2TB Fusion IO
128GB RAM
20 cores.
now.. this isn’t the typical cassandra box. Most people are running
multiple nodes to scale out vs scale vertically. But these boxes are
p
