Re: yet another benchmark bottleneck

Apache-cassandra-3.11.1 Yes, i'm dosing a single host test Sent using Zoho Mail On Mon, 12 Mar 2018 09:24:04 +0330 Jeff Jirsa wrote Would help to know your version. 130 ops/second sounds like a ridiculously low rate. Are you doing a single host test?

Re: yet another benchmark bottleneck

Would help to know your version. 130 ops/second sounds like a ridiculously low rate. Are you doing a single host test? On Sun, Mar 11, 2018 at 10:44 PM, onmstester onmstester wrote: > I'm going to benchmark Cassandra's write throughput on a node with > following spec: > >- CPU: 20 Cores >

yet another benchmark bottleneck

I'm going to benchmark Cassandra's write throughput on a node with following spec: CPU: 20 Cores Memory: 128 GB (32 GB as Cassandra heap) Disk: 3 seprate disk for OS, data and commitlog Network: 10 Gb (test it with iperf) Os: Ubuntu 16 Running Cassandra-stress: cassandra-stress write n=100

Re: Self read throughput increased rapidly

We should find out more about the ongoing user. Thank you for your reponse > On 12 Mar 2018, at 11:43 AM, Jeff Jirsa wrote: > > Well it’s hard to say unless you’re more precise with what JMX emitted metric > you’re graphing, but yes, there are read metrics that will increase if people > read

Re: Self read throughput increased rapidly

Well it’s hard to say unless you’re more precise with what JMX emitted metric you’re graphing, but yes, there are read metrics that will increase if people read the data -- Jeff Jirsa > On Mar 11, 2018, at 7:38 PM, Eunsu Kim wrote: > > No I didn’t > > Do you mean that this read throughput

Re: Self read throughput increased rapidly

No I didn’t Do you mean that this read throughput value comes out because somebody actually reads the data? > On 12 Mar 2018, at 11:32 AM, Jeff Jirsa wrote: > > I presume you’re asking because you don’t think you’re doing reads. Did you > start doing counter writes? > > > -- > Jeff Jirsa

Re: Self read throughput increased rapidly

I presume you’re asking because you don’t think you’re doing reads. Did you start doing counter writes? -- Jeff Jirsa > On Mar 11, 2018, at 7:30 PM, Eunsu Kim wrote: > > We monitored the write/read throughput through the Cassandra cluster via JMX. > There was little read throughput before

RE: Adding new DC?

Hi Kenneth, Replies inline below. On 12-Mar-2018 3:40 AM, "Kenneth Brotman" wrote: Hi Kunal, That version of Cassandra is too far before me so I’ll let others answer. I was wonder why you wouldn’t want to end up on 3.0x if you’re going through all the trouble of migrating anyway? Applica

RE: Adding new DC?

Hi Kunal, That version of Cassandra is too far before me so I’ll let others answer. I was wonder why you wouldn’t want to end up on 3.0x if you’re going through all the trouble of migrating anyway? Are both data centers in the same region on AWS? Can you provide yaml file for us to s

Adding new DC?

Hi all, We currently have a cluster in GCE for one of the customers. They want it to be migrated to AWS. I have setup one node in AWS to join into the cluster by following: https://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html Will add more nodes once the f

Your Invitation to Participate in Fourteen Really Cool Really Important Projects

Here is my list of projects that I want to see through in the next seven to ten years. I could do any of them in that time frame easy enough but doing all of them in that time frame means I'll need lots of help. I'm sixty years old. I might already be half way through my life. Why do I nee

Re: system.size_estimates - safe to remove sstables?

Finally, got a chance to work on it over the weekend. It worked as advertised. :) Thanks a lot, Chris. Kunal On 8 March 2018 at 10:47, Kunal Gangakhedkar wrote: > Thanks a lot, Chris. > > Will try it today/tomorrow and update here. > > Thanks, > Kunal > > On 7 March 2018 at 00:25, Chris Lohfin