Thanks a lot, Jordan, Jeff, Abe, guo and Jon! This is really helpful.
On Wed, Oct 9, 2024 at 8:59 AM Jon Haddad wrote:
> I've worked with a few hundred teams now, including the major ones that
> used single token (Apple, Netflix, Spotify), and pretty much all the rest
> used some form of vnodes.
I've worked with a few hundred teams now, including the major ones that
used single token (Apple, Netflix, Spotify), and pretty much all the rest
used some form of vnodes.
Jeff did a good job of summarizing the tradeoffs and I don't have anything
to add.
I would never, ever, recommend > 4 tokens.
You don’t have to double. You can add 1 node at a time - you just have to move every other token to stay balancedMost people don’t write the tooling to do that, but it’s not that complicatedCalculate the token positions with N nodesCalculate the token positions with N+1 nodes Bootstrap the new mach
I think cost is a very important point if you are going to use *single**
token i*f your cluster will be very large , because every time the cluster
is expanded, the nodes need to be doubled.100 -> 200, 200->400 ...
This is one of the reasons why we maintain many small clusters.
of course its avail
I’ll take a slightly different position - people who never expect to change the
cluster shouldn’t care which they’re using, people who want to grow by 10-20%
often should probably use vnodes, everyone else can probably figure out how to
get by with single token, with the caveat that they’ll prob
Here’s the best post I’m aware of:
https://jolynch.github.io/pdf/cassandra-availability-virtual.pdf
> On Oct 7, 2024, at 17:30, Long Pan wrote:
>
>
> Hi Cassandra Community,
>
> I’m currently exploring the use of single vnode (single token) per node in
> large-scale Cassandra deployments. I
Hi Long,
This is the best resource on understanding tokens per node and their impact
on operations / availability:
https://jolynch.github.io/pdf/cassandra-availability-virtual.pdf
I am one of those users that used a single token. It does make certain
operations simpler but it comes with a cost: c
Hi Cassandra Community,
I’m currently exploring the use of *single vnode* (single token) per node
in large-scale Cassandra deployments. I've come across discussions
suggesting that some heavy users like Apple and Netflix have opted for this
configuration to simplify operations and achieve more pre
