[GitHub] [pinot] snleee commented on a change in pull request #8066: Improve the log message for lineage cleanup

[GitBox <gi...@apache.org>]

snleee commented on a change in pull request #8066:
URL: https://github.com/apache/pinot/pull/8066#discussion_r791221941



##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/retention/RetentionManager.java
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@@ -258,10 +258,11 @@ private void manageSegmentLineageCleanupForTable(TableConfig tableConfig) {
         if (SegmentLineageAccessHelper
             .writeSegmentLineage(_pinotHelixResourceManager.getPropertyStore(), segmentLineage, expectedVersion)) {
           // Delete segments based on the segment lineage
-          _pinotHelixResourceManager.deleteSegments(tableNameWithType, segmentsToDelete);
-          LOGGER.info("Finished cleaning up segment lineage for table: {}, deleted segments: {} in {}ms",
-              tableNameWithType, StringUtils.join(segmentsToDelete, ","),
-              (System.currentTimeMillis() - cleanupStartTime));
+          if (!segmentsToDelete.isEmpty()) {

Review comment:
       not really. We will have the following log anyway in case we successfully processed the table. If nothing is deleted, we don't need to add the log. (no log means no deletion happened)
   ```
       LOGGER.info("Segment lineage metadata clean-up is successfully processed for table: {}", tableNameWithType);
   ```




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