Splitting this out from the other thread. It seems like there is broad
support for eventually moving towards UCS as our default compaction
strategy. What do we think needs to be completed ahead of that change. What
I've heard so far:
* Time / more reports of use in production - In particular for m
I think this would beneficial since we have a loose agreement that UCS is a
promising option as new default.
I plan to summarize the views expressed in this thread to propose a plan to
make compactions usability smoother to new users in Cassandra, if there are
any short term actions we can agree t
While we continue the discussion here on short term defaults do we all feel
it would be beneficial to start a new thread on what is required to get UCS
over the line as a default? So we can have both discussions going at once?
On Sun, Dec 8, 2024 at 8:44 AM Paulo Motta wrote:
>
> Hi Dave,
>
> I
Hi Dave,
I appreciate these performance/cost considerations and I believe these
should be taken into account when evaluating default changes.
I am trying to frame this as an usability issue with the database by
shipping with STCS by default.
I think it's possible to classify workloads into two t
…the analysis I describe would need to be weighted by table size. I have
several representative production cluster tablestats analyses that show r:w
ratio by table, including table size. I can check to see how this analysis
plays out on a few of these.
-Dave
David A. Herrington II
President and
Paulo,
I understand your perspective.
Short of waiting for UCS to prove itself out, I guess it comes down to the
assertion that a strong majority of Cassandra use cases would benefit from
using LCS vs. STCS.
The conventional wisdom is that workloads need to be read-heavy to make the
extra resour
Melissa,
I would be happy to help, as well.
Thanks,
Aaron
On Fri, Dec 6, 2024 at 11:56 PM Soheil Rahsaz
wrote:
> Hello Mellisa
>
> I am also eager to volunteer and excited to help. I have previously given
> talks about Cassandra.
>
> Regards,
> Soheil
>
> On Sat, Dec 7, 2024 at 1:11 AM Melis
> I feel it could be maddening to customers if LCS started showing up in
schemas after an upgrade just because the default changed.
Fwiw I’m not proposing changing the default for existing users or clusters,
but just for new tables in new clusters. Existing clusters would keep the
legacy default a
Hi Dave,
I'm also in the field and my experience is different.
I have seen new users shooting themselves in the foot with the default
compaction strategy STCS on a regular basis over the past few years and
have been recommending them to switch to LCS and they no longer encounter
issues after maki
