Hello Stefan, +1 Do we plan to release these changes? I am mostly interested in using 4.0, 4.1 :-)
On Tue, 26 Sept 2023 at 17:49, Miklosovic, Stefan <stefan.mikloso...@netapp.com> wrote: > > Hi list, > > there is CASSANDRA-18773 we want to merge to 4.0 up to trunk (hence it will > be in 5.0 (alpha2)) and I want to be sure we are all OK with that (especially > for that 5.0 alpha release). > > The patch is significantly speeding up the compaction throughput for cases > when you have a lot of SSTables in a key-value table without secondary index. > > My colleague Cameron Zemek has identified and fixed the issue together with > help of Branimir Lambov. > > It is a little bit hard to believe but for cases when your table contains > thousands of SSTables and it does not have any 2i's, (tested on around cca > 2500 SSTables), we saw the speedup of 50x (fifty times) on compaction > throughput for major compactions. It is also, reportedly, affecting > operations when switching from STCS to LCS. > > As mentioned, we plan to merge this to 4.0, 4.1, 5.0 and trunk. > > Any objections to that? > > Regards
