klsince commented on code in PR #13256:
URL: https://github.com/apache/pinot/pull/13256#discussion_r1638623922


##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeSegmentDataManager.java:
##########
@@ -1611,6 +1622,10 @@ public RealtimeSegmentDataManager(SegmentZKMetadata 
segmentZKMetadata, TableConf
       _segmentLogger
           .info("Starting consumption on realtime consuming segment {} 
maxRowCount {} maxEndTime {}", llcSegmentName,
               _segmentMaxRowCount, new DateTime(_consumeEndTime, 
DateTimeZone.UTC));
+      _allowPartialUpsertConsumptionDuringCommit =
+          _realtimeTableDataManager.isPartialUpsertEnabled() ? 
_tableConfig.getUpsertConfig() != null

Review Comment:
   the config name as `allowPartialUpsertConsumptionDuringCommit` or 
`default.allow.partial.upsert.consumption.during.commit` makes a lot sense and 
it's false by default.
   
   but this variable name `_allowPartialUpsertConsumptionDuringCommit` here 
might be a bit less readable. Here we had to set it true for 
non-paritial-upsert table. I'd call it `_allowConsumptionDuringCommit`, then 
it's more intuitive to leave it as true for non-paritial-upsert table
   
   ```
   _allowConsumptionDuringCommit = 
!_realtimeTableDataManager.isPartialUpsertEnabled()? true : 
_tableConfig.getUpsertConfig().isAllowPartialUpsertConsumptionDuringCommit() 
   // nit: no need to check getUpsertConfig() is not null as 
isPartialUpsertEnabled() is true already.
   ```



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