jtao15 commented on code in PR #10964:
URL: https://github.com/apache/pinot/pull/10964#discussion_r1243152915
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/lineage/LineageManager.java:
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@@ -70,4 +71,14 @@ void updateLineageForRevertReplaceSegments(TableConfig
tableConfig, String linea
*/
void updateLineageForRetention(TableConfig tableConfig, SegmentLineage
lineage, List<String> allSegments,
List<String> segmentsToDelete, Set<String> consumingSegments);
+
+ /**
+ * Get segment zk metadata groups for MergeRollupTask
+ * @param tableConfig
+ * @param lineage
+ * @param segments
+ * @return segment zk metadata groups
Review Comment:
This basically returns multiple Group/List of SegmentZkMetadata. Each
group/list have the segments that should be merged together, segments from
different groups should not be merged.
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