"Refresh" is almost the same as "build"; the only difference is "refresh" for an existing segment, "build" for a new segment.
2017-03-16 22:56 GMT+08:00 Sonny Heer <[email protected]>: > Can you describe the performance between "refresh", "build" and "merge"? > I'm assuming refresh is essentially the same as a full build of the same > cube, or is it doing something else to speed up processing? > > Thanks for all the clarifications. > > On Wed, Mar 15, 2017 at 2:09 PM, Billy Liu <[email protected]> wrote: > >> Kylin is the OLAP on Hadoop. OLAP is the read-only query engine. So we >> suppose there is no update/delete operator directly. Kylin support build >> incrementally. So if new data is ingested, you could build new one(new time >> range). If you want to update existing cube since the underline data >> changed, please click "Refresh" on the Cube. >> >> 2017-03-15 13:23 GMT-07:00 Sonny Heer <[email protected]>: >> >>> Thanks ShaoFeng, >>> >>> views is what we are doing now. How does kylin handle >>> new/updated/deleted records? I have a schema that i create a single view >>> from (denormalized). can you explain kylin's pattern to handle >>> new/updated/deleted data? >>> >>> On Tue, Mar 14, 2017 at 6:21 PM, ShaoFeng Shi <[email protected]> >>> wrote: >>> >>>> View might be slower, but it is flexible. This is a tradeoff. >>>> >>>> 2017-03-14 4:15 GMT+08:00 Sonny Heer <[email protected]>: >>>> >>>>> How about Hive view fed into kylin vs materialized table...performance >>>>> impact? >>>>> >>>>> On Fri, Mar 10, 2017 at 1:34 AM, ShaoFeng Shi <[email protected]> >>>>> wrote: >>>>> >>>>>> One Cube is one topic, all activities like build and ACL are managed >>>>>> by cube; one query should only hit one cube; acrossing cube query isn't >>>>>> suggested. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> >>>>> Pushpinder S. Heer >>>>> Senior Software Engineer >>>>> m: 360-434-4354 <(360)%20434-4354> h: 509-884-2574 <(509)%20884-2574> >>>>> >>>> >>>> >>>> >>>> -- >>>> Best regards, >>>> >>>> Shaofeng Shi 史少锋 >>>> >>>> >>> >>> >>> -- >>> >>> >>> Pushpinder S. Heer >>> Senior Software Engineer >>> m: 360-434-4354 <(360)%20434-4354> h: 509-884-2574 <(509)%20884-2574> >>> >> >> > > > -- > > > Pushpinder S. Heer > Senior Software Engineer > m: 360-434-4354 h: 509-884-2574 > -- Best regards, Shaofeng Shi 史少锋
