snleee edited a comment on pull request #6049:
URL: https://github.com/apache/incubator-pinot/pull/6049#issuecomment-696977822
When making a mistake on the column name for partition config, the
consumption would stop because it fails to generate the segment. Instead, we
should catch this during the validation and prevent the table from being
created.
```
2020/09/22 07:15:46.135 ERROR
[LLRealtimeSegmentDataManager_XXX__1__0__20200921T1905Z]
[XXXXXX__1__0__20200921T1905Z] [pinot-server] [] Coul
d not build segment
java.lang.NullPointerException: null
at
org.apache.pinot.core.realtime.converter.RealtimeSegmentConverter.build(RealtimeSegmentConverter.java:132)
~[pinot-core-0.5.0-dev-18617.jar:0.5.0-dev-18617-a31c06a9f773
14234190cdd77d4657bc373d4e89]
at
org.apache.pinot.core.data.manager.realtime.LLRealtimeSegmentDataManager.buildSegmentInternal(LLRealtimeSegmentDataManager.java:742)
[pinot-core-0.5.0-dev-18617.jar:0.5
.0-dev-18617-a31c06a9f77314234190cdd77d4657bc373d4e89]
at
org.apache.pinot.core.data.manager.realtime.LLRealtimeSegmentDataManager.buildSegmentForCommit(LLRealtimeSegmentDataManager.java:693)
[pinot-core-0.5.0-dev-18617.jar:0.
5.0-dev-18617-a31c06a9f77314234190cdd77d4657bc373d4e89]
at
org.apache.pinot.core.data.manager.realtime.LLRealtimeSegmentDataManager$PartitionConsumer.run(LLRealtimeSegmentDataManager.java:604)
[pinot-core-0.5.0-dev-18617.jar:0.
5.0-dev-18617-a31c06a9f77314234190cdd77d4657bc373d4e89]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
```
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