klsince commented on code in PR #15268:
URL: https://github.com/apache/pinot/pull/15268#discussion_r1996097154
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeSegmentDataManager.java:
##########
@@ -1725,6 +1723,19 @@ public RealtimeSegmentDataManager(SegmentZKMetadata
segmentZKMetadata, TableConf
}
}
+ // Consumption while downloading and replacing the slow replicas is not
allowed for the following use cases:
+ // 1. Partial Upserts
+ // 2. Dedup Tables
+ // For the above table types, we would be looking into the metadata
information when inserting a new record,
+ // so it is not ideal to allow consumption when downloading and replacing
the consuming segment as we might see
+ // unusual behaviour of duplicates in dedup tables and inconsistent entries
compared to lead replicas for partial
+ // upsert tables.
+ private boolean isConsumptionAllowedDuringCommit() {
+ return (!_realtimeTableDataManager.isPartialUpsertEnabled() &&
!_realtimeTableDataManager.isDedupEnabled()) || (
+ _tableConfig.getUpsertConfig() != null &&
_tableConfig.getUpsertConfig()
+ .isAllowPartialUpsertConsumptionDuringCommit());
Review Comment:
maybe this? so it's more clear that
isAllowPartialUpsertConsumptionDuringCommit is only used for upsert table.
```
return !_realtimeTableDataManager.isDedupEnabled() &&
(!_realtimeTableDataManager.isPartialUpsertEnabled() ||
_tableConfig.getUpsertConfig().isAllowPartialUpsertConsumptionDuringCommit())
```
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeSegmentDataManager.java:
##########
@@ -1725,6 +1723,19 @@ public RealtimeSegmentDataManager(SegmentZKMetadata
segmentZKMetadata, TableConf
}
}
+ // Consumption while downloading and replacing the slow replicas is not
allowed for the following use cases:
+ // 1. Partial Upserts
+ // 2. Dedup Tables
+ // For the above table types, we would be looking into the metadata
information when inserting a new record,
+ // so it is not ideal to allow consumption when downloading and replacing
the consuming segment as we might see
+ // unusual behaviour of duplicates in dedup tables and inconsistent entries
compared to lead replicas for partial
+ // upsert tables.
Review Comment:
nit: Consumption while downloading and replacing the `consuming segment` on
slow replicas ...
nit: ... so it's not right to allow consumption .. as we might see
duplicates in dedup tables or inconsistent entries in partial upsert table
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