sadanand48 commented on code in PR #4273:
URL: https://github.com/apache/ozone/pull/4273#discussion_r1115700416
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hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/RocksDiffUtils.java:
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@@ -50,5 +62,48 @@ public static String constructBucketKey(String keyName) {
return builder.toString();
}
+ public static void filterRelevantSstFiles(Set<String> inputFiles,
+ Map<String, String> tableToPrefixMap) {
+ for (Iterator<String> fileIterator =
+ inputFiles.iterator(); fileIterator.hasNext();) {
+ String filepath = fileIterator.next();
+ if (!RocksDiffUtils.doesSstFileContainKeyRange(filepath,
+ tableToPrefixMap)) {
+ fileIterator.remove();
+ }
+ }
+ }
+
+ public static boolean doesSstFileContainKeyRange(String filepath,
+ Map<String, String> tableToPrefixMap) {
+ try (SstFileReader sstFileReader = new SstFileReader(new Options())) {
+ sstFileReader.open(filepath);
+ TableProperties properties = sstFileReader.getTableProperties();
+ String tableName = new String(properties.getColumnFamilyName(), UTF_8);
+ if (tableToPrefixMap.containsKey(tableName)) {
+ String prefix = tableToPrefixMap.get(tableName);
+ SstFileReaderIterator iterator =
+ sstFileReader.newIterator(new ReadOptions());
+ iterator.seekToFirst();
+ String firstKey = RocksDiffUtils.constructBucketKey(
+ new String(iterator.key(), UTF_8));
+ iterator.seekToLast();
+ String lastKey = RocksDiffUtils.constructBucketKey(
+ new String(iterator.key(), UTF_8));
+ boolean keyWithPrefixPresent =
+ RocksDiffUtils.isKeyWithPrefixPresent(prefix, firstKey, lastKey);
+ if (!keyWithPrefixPresent) {
+ return false;
+ }
+ } else {
+ // entry from other tables
+ return false;
+ }
+ } catch (RocksDBException e) {
+ e.printStackTrace();
Review Comment:
Done.
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