kfaraz commented on code in PR #14407:
URL: https://github.com/apache/druid/pull/14407#discussion_r1349828883
##########
indexing-service/src/main/java/org/apache/druid/indexing/common/task/KillUnusedSegmentsTask.java:
##########
@@ -218,7 +221,22 @@ public TaskStatus runTask(TaskToolbox toolbox) throws
Exception
// abandoned.
toolbox.getTaskActionClient().submit(new SegmentNukeAction(new
HashSet<>(unusedSegments)));
- toolbox.getDataSegmentKiller().kill(unusedSegments);
+
+ // Fetch the load specs of all segments overlapping with the given
interval
+ final Set<Map<String, Object>> usedSegmentLoadSpecs = toolbox
+ .getTaskActionClient()
+ .submit(new RetrieveUsedSegmentsAction(getDataSource(),
getInterval(), null, Segments.INCLUDING_OVERSHADOWED))
+ .stream()
+ .map(DataSegment::getLoadSpec)
+ .collect(Collectors.toSet());
+
+ // Kill segments from the deep storage only if their load specs are not
being used by any used segments
+ final List<DataSegment> segmentsToBeKilled = unusedSegments
+ .stream()
+ .filter(unusedSegment ->
!usedSegmentLoadSpecs.contains(unusedSegment.getLoadSpec()))
+ .collect(Collectors.toList());
+
+ toolbox.getDataSegmentKiller().kill(segmentsToBeKilled);
Review Comment:
Ah, sorry, I misinterpreted the comment to be just for the last line, rather
than this whole block of code.
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