question Re: kudu is slower than parquet? in Support Questions

question Re: kudu is slower than parquet? in Support Questions https://community.cloudera.com/t5/Support-Questions/kudu-is-slower-than-parquet/m-p/56614#M14066 1, Make sure you run COMPUTE STATS: yes, we do this after loading data 2, What is the total size of your data set?impala tpc-ds tool create 9 dim tables and 1 fact table, which dim tables are small(record num from 1k to 4million+ according to the datasize generated),and the fact table is big, here is the 'data siez-->record num' of fact table:512g<-->4224587147256g<-->211228154964g<-->528071062 3, Can you also share how you partitioned your Kudu table?for the dim tables, we hash partition it into 2 partitions by their primary (no partition for parquet table),for the fact table, we range partition it into 60 partitions by its 'data field'(parquet partition into 1800+ partitions),for those tables create in kudu, their replication factor is 3. Wed, 28 Jun 2017 04:05:50 GMT lewiss 2017-06-28T04:05:50Z