Sometimes DELETE of a row that was INSERT shortly before does not work

2018-12-10 Thread Oliver Herrmann
Hi, we are having an issue that sometimes a row is not deleted when it was inserted a short time before. The cluster has two datacenter each with 3 nodes running C* 3.11.3. The clients are using Datastax cpp driver 2.10.0 on RHEL-7 with consistency level quorum for INSERT, DELETE and SELECT. When

Re: AWS r5.xlarge vs i3.xlarge

2018-12-10 Thread Oleksandr Shulgin
On Mon, Dec 10, 2018 at 3:23 PM Riccardo Ferrari wrote: > > By "small" I mean that currently I have a 6x m1.xlarge instances running > Cassandra 3.0.17. Total amount of data is around 1.5TB spread across couple > of keypaces wih RF:3. > > Over time few things happened/became clear including: > >

Re: AWS r5.xlarge vs i3.xlarge

2018-12-10 Thread Riccardo Ferrari
Thanks for the feedback. By "small" I mean that currently I have a 6x m1.xlarge instances running Cassandra 3.0.17. Total amount of data is around 1.5TB spread across couple of keypaces wih RF:3. Over time few things happened/became clear including: - increase amount of ingested data - m1.

Re: AWS r5.xlarge vs i3.xlarge

2018-12-10 Thread Oleksandr Shulgin
On Mon, Dec 10, 2018 at 12:20 PM Riccardo Ferrari wrote: > I am wondering what instance type is best for a small cassandra cluster on > AWS. > Define "small" :-D > Actually I'd like to compare, or have your opinion about the following > instances: > >- r5*d*.xlarge (4vCPU, *19*ecu, 32GB ra

Re: AWS r5.xlarge vs i3.xlarge

2018-12-10 Thread Walker Rowe
I'm not really a hardware performance guy, still looking at that with cassandra. I use 2 t.large instances with reserved pricing, which saves about 80% on costs if you pay for 1 year. On Mon, Dec 10, 2018 at 12:20 PM Riccardo Ferrari wrote: > Hi list! > > I am wondering what instance type is be

AWS r5.xlarge vs i3.xlarge

2018-12-10 Thread Riccardo Ferrari
Hi list! I am wondering what instance type is best for a small cassandra cluster on AWS. Actually I'd like to compare, or have your opinion about the following instances: - r5*d*.xlarge (4vCPU, *19*ecu, 32GB ram and 1 NVMe instance store 150GB) - Need to attach a 600/900GB ESB - i3

broken link in documentation

2018-12-10 Thread Walker Rowe
This page . http://cassandra.apache.org/doc/latest/tools/cassandra_stress.html refers to this broken link http://cassandra.apache.org/doc/latest/_downloads/stress-example.yaml