important factors, as well as the future growth of
> the cluster and the expected size of any additional nodes.
>
>
>
>
>
> Sean Durity
>
>
>
> From: Jeff Jirsa [mailto:jji...@gmail.com]
> Sent: Thursday, August 17, 2017 4:20 PM
> To: cassandra
st 17, 2017 4:20 PM
To: cassandra
Subject: Re: Adding a new node with the double of disk space
If you really double the hardware in every way, it's PROBABLY reasonable to
double num_tokens. It won't be quite the same as doubling all-the-things,
because you still have a single
growth of the cluster
and the expected size of any additional nodes.
Sean Durity
From: Jeff Jirsa [mailto:jji...@gmail.com]
Sent: Thursday, August 17, 2017 4:20 PM
To: cassandra
Subject: Re: Adding a new node with the double of disk space
If you really double the hardware in every way, it&#
I would preferably spin 2 JVMs inside the same hardware (if you double
everything) than having to deal with what Jeff stated.
Also certain operations are not really found of a large number of vnodes
(eg. repair). There was a lot of improvements in the 3.x release cycle, but
I do still tend to redu
If you really double the hardware in every way, it's PROBABLY reasonable to
double num_tokens. It won't be quite the same as doubling all-the-things,
because you still have a single JVM, and you'll still have to deal with GC
as you're now reading twice as much and generating twice as much garbage,
Are you saying if a node had double the hardware capacity in every way it
would be a bad idea to up num_tokens? I thought that was the whole idea of
that setting though?
On Thu, Aug 17, 2017 at 9:52 AM, Carlos Rolo wrote:
> No.
>
> If you would double all the hardware on that node vs the others
No.
If you would double all the hardware on that node vs the others would still
be a bad idea.
Keep the cluster uniform vnodes wise.
Regards,
Carlos Juzarte Rolo
Cassandra Consultant / Datastax Certified Architect / Cassandra MVP
Pythian - Love your data
rolo@pythian | Twitter: @cjrolo | Skype
Hi all,
I need to add a new node to my cluster but this time the new node will
have the double of disk space comparing to the other nodes.
I'm using the default vnodes (num_tokens: 256). To fully use the disk
space in the new node I just have to configure num_tokens: 512?
Thanks in advance.
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