klsince commented on code in PR #15178:
URL: https://github.com/apache/pinot/pull/15178#discussion_r1982207064


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/dedup/BasePartitionDedupMetadataManager.java:
##########
@@ -283,8 +283,13 @@ public void removeSegment(IndexSegment segment) {
       return;
     }
     try {
-      if (skipSegmentOutOfTTL(segment, false)) {
-        return;
+      // segment.getSegmentMetadata().getColumnMetadataMap() will be null when 
offloading a temporary segment data
+      // manager created in BaseTableDataManager.addSegment which caused 
replicas to go into BAD state when
+      // metadataTTL is set
+      if (segment.getSegmentMetadata() != null && 
segment.getSegmentMetadata().getColumnMetadataMap() != null) {

Review Comment:
   Also, it may help debug such issues in future to log more about the 
exceptions at this place in RealtimeSegmentDataManager: L895.
   ```      } catch (Throwable e) {
           if (_shouldStop) {
             _segmentLogger.info("Caught exception in consumer thread after 
stop() is invoked: {}, ignoring the exception",
                 e.toString());
   ...
   ```



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