aryangupta1998 commented on code in PR #8423:
URL: https://github.com/apache/ozone/pull/8423#discussion_r2085581487
##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/SnapshotDiffManager.java:
##########
@@ -1217,6 +1222,28 @@ Set<String> getDeltaFiles(OmSnapshot fromSnapshot,
toSnapshot.getSnapshotTableKey()));
}
+ private Set<String> getDiffFiles(OmSnapshot fromSnapshot, OmSnapshot
toSnapshot, List<String> tablesToLookUp) {
+ Set<String> diffFiles;
+ try {
+ Map<Object, String> fromSnapshotFiles =
getSSTFileMapForSnapshot(fromSnapshot, tablesToLookUp);
+ Map<Object, String> toSnapshotFiles =
getSSTFileMapForSnapshot(toSnapshot, tablesToLookUp);
+ diffFiles = Stream.concat(
+ fromSnapshotFiles.entrySet().stream()
+ .filter(e -> !toSnapshotFiles.containsKey(e.getKey())),
+ toSnapshotFiles.entrySet().stream()
+ .filter(e -> !fromSnapshotFiles.containsKey(e.getKey())))
+ .map(Map.Entry::getValue)
+ .collect(Collectors.toSet());
+ } catch (IOException e) {
+ // In case of exception during inode read use all files
+ LOG.error("Exception occurred while populating delta files for
snapDiff", e);
+ diffFiles = new HashSet<>();
+ diffFiles.addAll(getSSTFileListForSnapshot(fromSnapshot,
tablesToLookUp));
+ diffFiles.addAll(getSSTFileListForSnapshot(toSnapshot, tablesToLookUp));
Review Comment:
Let's add a warn message, maybe something like,
`LOG.warn("Falling back to full file list comparison, inode-based
optimization skipped.");`
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