My coworker Radovan wrote up a post on the relationship between gc grace
and hinted handoff:
https://thelastpickle.com/blog/2018/03/21/hinted-handoff-gc-grace-demystified.html
Jon
On Sat, Oct 26, 2019 at 6:45 AM Hossein Ghiyasi Mehr
wrote:
> It needs to change gc_grace_seconds carefully because
It needs to change gc_grace_seconds carefully because it has side effect on
hinted handoff.
On Fri, Oct 18, 2019 at 5:04 PM Paul Chandler wrote:
> Hi Adarsh,
>
> You will have problems if you manually delete data when using TWCS.
>
> To fully understand why, I recommend reading this The Last Pic
Hi Adarsh,
You will have problems if you manually delete data when using TWCS.
To fully understand why, I recommend reading this The Last Pickle post:
https://thelastpickle.com/blog/2016/12/08/TWCS-part1.html
And this post I wrote that dives deeper into the problems with deletes:
http://www.red
Thanks Jeff,
I just checked with business and we have differences in having TTL. So it
will be manula purging always. We do not want to use LCS due to high IOs.
So:
1. As the use case is of time series data model, TWCS will be give some
benefit (without TTL) and with frequent deleted data
Is everything in the table TTL’d?
Do you do explicit deletes before the data is expected to expire ?
Generally speaking, gcgs exists to prevent data resurrection. But ttl’d data
can’t be resurrected once it expires, so gcgs has no purpose unless you’re
deleting it before the ttl expires. If y
Hi,
We have a use case of time series data with TTL where we want to use
TimeWindowCompactionStrategy because of its better management for TTL and
tombstones. In this case, data we have is frequently deleted so we want to
reduce gc_grace_seconds to reduce the tombstones' life and reduce pressure
o
