shauryachats commented on code in PR #18467:
URL: https://github.com/apache/pinot/pull/18467#discussion_r3263658702
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pinot-server/src/main/java/org/apache/pinot/server/predownload/PredownloadSegmentInfo.java:
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@@ -172,9 +176,27 @@ public boolean hasSameCRC() {
}
}
- public void updateSegmentInfoFromLocal(@Nullable SegmentDirectory
segmentDirectory) {
- SegmentMetadataImpl segmentMetadata = (segmentDirectory == null) ? null :
segmentDirectory.getSegmentMetadata();
- _localCrc = (segmentMetadata == null) ? null : segmentMetadata.getCrc();
- _localSizeBytes = (segmentDirectory == null) ? 0 :
segmentDirectory.getDiskSizeBytes();
+ /**
+ * Populates local CRC and size from the segment directory on disk, avoiding
mmap of index files.
+ * Reads CRC from {@code creation.meta} (8 bytes) and computes size via
directory traversal.
+ * Sets {@code _localCrc} to null and {@code _localSizeBytes} to 0 if the
segment or its
+ * creation.meta does not exist.
+ */
+ public void updateSegmentInfoFromLocal(File segDir) {
+ if (!segDir.isDirectory()) {
+ LOGGER.warn("Segment path is not a directory: {}", segDir);
+ return;
+ }
+ File creationMeta = SegmentDirectoryPaths.findCreationMetaFile(segDir);
+ if (creationMeta == null || !creationMeta.exists()) {
+ return;
Review Comment:
Can we add a warning log for more information?
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