klsince commented on a change in pull request #7969:
URL: https://github.com/apache/pinot/pull/7969#discussion_r780044650
##########
File path:
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/index/loader/LoaderUtils.java
##########
@@ -161,4 +160,36 @@ public static void reloadFailureRecovery(File indexDir)
FileUtils.forceDelete(segmentTempDir);
}
}
+
+ public static void createBackup(File indexDir)
+ throws IOException {
+ if (!indexDir.exists()) {
+ return;
+ }
+ File parentDir = indexDir.getParentFile();
+ File segmentBackupDir = new File(parentDir, indexDir.getName() +
CommonConstants.Segment.SEGMENT_BACKUP_DIR_SUFFIX);
+ // Rename index directory to segment backup directory (atomic)
+ Preconditions.checkState(indexDir.renameTo(segmentBackupDir),
+ "Failed to rename index directory: %s to segment backup directory:
%s", indexDir, segmentBackupDir);
+ // Copy the backup dir back to proceed.
+ FileUtils.copyDirectory(segmentBackupDir, indexDir);
Review comment:
The change has been reverted. Just that copying backup directory back is
done with SegmentDirectory.copyTo() now to decouple the logic with local
segment directory.
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