RE: [EXTERNAL] Re: Data Node Density

2017-12-27 Thread Durity, Sean R
, but I resist. Sean Durity From: Amit Agrawal [mailto:amit.ku.agra...@gmail.com] Sent: Friday, December 15, 2017 9:38 AM To: user@cassandra.apache.org Subject: [EXTERNAL] Re: Data Node Density Thanks Nicholas. Am aware of the official recommendations. However, in the last project, we tried with

Re: Data Node Density

2017-12-15 Thread Jeff Jirsa
Typing this on a phone during my commute, please excuse the inevitable typos in what I expect will be a long email because there’s nothing else for me to do right now. There’s a few reasons people don’t typically recommend huge nodes, the biggest reason being expansion and replacement. This qu

Re: Data Node Density

2017-12-15 Thread Amit Agrawal
Thanks Nicholas. Am aware of the official recommendations. However, in the last project, we tried with 5 TB and it worked fine. So asking for expereinces around. Anybody knows anyone who provides a consultancy on open source cassandra. Datastax just does it for the enterprise version! On Fri, De

Re: Data Node Density

2017-12-15 Thread Nicolas Guyomar
Hi Amit, This is way too much data per node, official recommendation are to try to stay below 2Tb per node, I have seen nodes up to 4Tb but then maintenance gets really complicated (backup, boostrap, streaming for repair etc etc) Nicolas On 15 December 2017 at 15:01, Amit Agrawal wrote: > Hi,

Data Node Density

2017-12-15 Thread Amit Agrawal
Hi, We are trying to setup a 3 node cluster with 20 TB HD on each node. its a bare metal setup with 44 cores on each node. So in total 60 TB, 66 cores , 3 node cluster. The data velocity is very less, low access rates. has anyone tried with this configuration ? A bit urgent. Regards, -A