On Fri, Apr 26, 2019 at 3:27 AM asma zgolli <[email protected]> wrote:
> Hello, > > we're studying cost models in big data and while doing an experimental > measure of the io of workloads executed in hbase and workloads executed in > Phoenix on tables stored in hbase we found that the IO is always equal to > zero !!! > > What are you looking at? S > in our experiment, we are running hbase on file system (we re not using > hdfs). > > When we observed the cost of those queries (in Phoenix) we got a variable > result for the io. we found that the only dimension of the cost vector > returned by Phoenix that changes is the IO dimension (CPU and memory are > always equal to zero). > > we found that this result is unlogical and we wish to have a better > understanding of the reason why we' re having those values. > > thank you for ur help, > > yours sincerely, > Asma ZGOLLI > PhD student in data engineering - computer science >
