The screenshot couldn??t be shown up. So far kylin doesn??t support customising mr configurations for each step. You can try to give the reducer more memory in conf/kylin_job_conf.xml as a workaround.
Besides, you need consider whether that ultra-high-cardinality column is meaningful as a dimension. If not, remove that; if yes and evening adding memory to the reducer still couldn??t work, then you can select ??dictionary" as No in the ??Advanced?? tab, and set a max-length for that column, Kylin will not use dictionary to encode that, just copying the value to rowkey. > On Jan 31, 2016, at 3:02 PM, ?????????? <[email protected]> wrote: > > ????fact??????????5000??????, ??build cube ????????????(Extact Fact Table > Distinct Columns), reduce??????????????1??, ??????????????????????1??, > ????????????????????????????,????????????job??????. > ????????????????????, ??????????????????mapreduce??????? > > > >
