Happy Thanksgiving to you. Since handling regression isn't the goal of HBASE-18294, mind logging another JIRA ?
I applied patch v6 from HBASE-18294 on branch-2 and observed minor conflict (CellUtil.java). Meaning compaction / flush code is mostly the same between branch-2 and master. Over HBASE-19338, > 20% boost was reported with patch. However, that is not enough to bring performance back. Cheers On Thu, Nov 23, 2017 at 7:35 AM, Eshcar Hillel <esh...@oath.com.invalid> wrote: > Happy Thanksgiving all, > In recent benchmarks I ran in HBASE-18294 I discovered major performance > degradation of master code w.r.t 2-alpha-1 code.I am running write-only > workload (similar to the one reported in HBASE-16417). I am using the same > hardware and same configuration settings (specifically, I testes both basic > memstore compaction with optimal parameters, and no memsore > compaction).While in 2-alpha-1 code I see throughput of ~110Kops for basic > compaction and ~80Kops for no compaction, in the master code I get only > 60Kops and 55Kops, respectively. *This is almost 50% reduction in > performance*. > (1) Did anyone else noticed such degradation?(2) Do we have any systematic > automatic/semi-automatic method to track the sources of this performance > issue? > Thanks,Eshcar > > >
