+1; Kylin couldn’t differentiate whether the empty segment is expected or is something wrong; Input data quality should be ensured by user before building into cube; So, in my opinion, a warning message in the notification of build job is good;
On 8/6/15, 10:37 PM, "周千昊" <[email protected]> wrote: >I think the such flag like 'AllowEmptySegment' should not be mixed up with >cube or streaming metadata. >It makes sense kylin allow empty segment by default and inform the user >when it happens. >Anyway our users' thoughts will be more helpful. >Looking forward to seeing more comments > >Luke Han <[email protected]>于2015年8月6日周四 下午9:49写道： > >> Streaming & Batch are different behaviour, that's why we should leave >>this >> option to user >> to allow them choose which exactly result they want. >> >> Add one setting option for each cube/streaming say "AllowEmptySegment", >> default to be true >> >> Then when cubing engine could raise error when it set to false, and >> continue if true. >> >> Even in streaming case, some of them are ok to merge empty later but >>some >> need alert. >> >> Thanks. >> >> >> Best Regards! >> --------------------- >> >> Luke Han >> >> On Thu, Aug 6, 2015 at 9:08 PM, hongbin ma <[email protected]> wrote: >> >> > how about in the streaming case? even if we label a segment as >>warning, >> it >> > might get merged before we notice it. >> > >> > On Thu, Aug 6, 2015 at 5:51 PM, Li Yang <[email protected]> wrote: >> > >> > > Luke and me discussed this once. I remember the conclusion is let >>the >> > build >> > > pass, but leave a warn on GUI to remind user there might be error >>about >> > the >> > > input source. >> > > >> > > On Mon, Aug 3, 2015 at 11:59 AM, hongbin ma <[email protected]> >> > wrote: >> > > >> > > > Do we have any resolution on how to deal with segment with 0 >>records >> > now? >> > > > >> > > > I found a ticket https://issues.apache.org/jira/browse/KYLIN-345, >>it >> > is >> > > > closed now, >> > > > but i'm not aware of this by far. >> > > > >> > > > -- >> > > > Regards, >> > > > >> > > > *Bin Mahone | 马洪宾* >> > > > Apache Kylin: http://kylin.io >> > > > Github: https://github.com/binmahone >> > > > >> > > >> > >> > >> > >> > -- >> > Regards, >> > >> > *Bin Mahone | 马洪宾* >> > Apache Kylin: http://kylin.io >> > Github: https://github.com/binmahone >> > >> >-- >Best Regard >ZhouQianhao
