xiangfu0 commented on code in PR #19580:
URL: https://github.com/apache/pinot/pull/19580#discussion_r4031571261


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/store/SegmentLocalFSDirectory.java:
##########
@@ -182,12 +182,8 @@ public long getDiskSizeBytes() {
 
     // check that v3 subdirectory exists since the format may not have been 
converted
     if (_segmentDirectory != null && _segmentDirectory.exists()) {
-      try {
-        return FileUtils.sizeOfDirectory(_segmentDirectory.toPath().toFile());
-      } catch (IllegalArgumentException e) {
-        LOGGER.error("Failed to read disk size for directory: {}", 
_segmentDirectory.getAbsolutePath());
-        return -1;
-      }
+      // A concurrent reload may be rewriting this directory in place, so use 
the delete-tolerant walk.
+      return 
org.apache.pinot.common.utils.FileUtils.sizeOfDirectory(_segmentDirectory);

Review Comment:
   Is this the only usage? shall we also banned the 
`org.apache.commons.io.FileUtils.sizeOfDirectory` usage from checkstyle?



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