deemoliu commented on code in PR #10047:
URL: https://github.com/apache/pinot/pull/10047#discussion_r1198137711
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeTableDataManager.java:
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@@ -526,6 +529,32 @@ private void handleUpsert(ImmutableSegment
immutableSegment) {
_tableNameWithType));
PartitionUpsertMetadataManager partitionUpsertMetadataManager =
_tableUpsertMetadataManager.getOrCreatePartitionManager(partitionId);
+ return partitionUpsertMetadataManager;
+ }
+
+ /**
+ * Handle Upsert TTL during segment state change from CONSUMING to ONLINE.
+ *
+ * When a new segments commit, we will remove primary key indexes from heap
that has timestamp < (eventTime - TTL).
+ * For all segments sealed before (eventTime-TTL), their validDocIds won't
get updated. We do an one-time persistance.
Review Comment:
Only segments that haven't been persisted before will do snapshot
persistence.
We have a PQ to keep track all the segments that snapshot not have been
persisted.
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