chenboat opened a new issue #6174: URL: https://github.com/apache/incubator-pinot/issues/6174
When we are evaluating the schema update improvement ([PR4954](https://github.com/apache/incubator-pinot/pull/4954)), we found segment build error during sealing of the consuming segment after we add new columns to the schema. This in turn stopped the realtime ingestion entirely. Error stack: ``` java.lang.ClassCastException: org.apache.pinot.core.segment.index.readers.ConstantValueDoubleDictionary cannot be cast to org.apache.pinot.core.realtime.impl.dictionary.BaseMutableDictionary at o.a.p.c.r.c.s.RealtimeColumnStatistics.<init>(RealtimeColumnStatistics.java:46) at o.a.p.c.r.c.s.RealtimeSegmentStatsContainer.<init>(RealtimeSegmentStatsContainer.java:46) at o.a.p.c.r.c.s.RealtimeSegmentSegmentCreationDataSource.gatherStats(RealtimeSegmentSegmentCreationDataSource.java:51) at o.a.p.c.s.c.i.SegmentIndexCreationDriverImpl.init(SegmentIndexCreationDriverImpl.java:141) at o.a.p.c.r.c.RealtimeSegmentConverter.build(RealtimeSegmentConverter.java:140) at o.a.p.c.d.m.r.LLRealtimeSegmentDataManager.buildSegmentInternal(LLRealtimeSegmentDataManager.java:720) at o.a.p.c.d.m.r.LLRealtimeSegmentDataManager.buildSegmentForCommit(LLRealtimeSegmentDataManager.java:671) at o.a.p.c.d.m.r.LLRealtimeSegmentDataManager$PartitionConsumer.run(LLRealtimeSegmentDataManager.java:588) at jav... ``` To reproduce this issue, turn on ` pinot.server.instance.reload.consumingSegment=true ` and add a new column to the table schema. @Jackie-Jiang @mcvsubbu @haibow @yupeng9 @npawar ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org