danny0405 commented on code in PR #9114:
URL: https://github.com/apache/hudi/pull/9114#discussion_r1251389097
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hudi-client/hudi-client-common/src/main/java/org/apache/hudi/metadata/HoodieBackedTableMetadataWriter.java:
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@@ -1159,10 +1161,27 @@ protected boolean
validateTimelineBeforeSchedulingCompaction(Option<String> inFl
* @param writeStatuses {@code WriteStatus} from the write operation
*/
private HoodieData<HoodieRecord>
getRecordIndexUpdates(HoodieData<WriteStatus> writeStatuses) {
- return writeStatuses.flatMap(writeStatus -> {
- List<HoodieRecord> recordList = new LinkedList<>();
- for (HoodieRecordDelegate recordDelegate :
writeStatus.getWrittenRecordDelegates()) {
- if (!writeStatus.isErrored(recordDelegate.getHoodieKey())) {
+ // 1. List<HoodieRecordDelegate>
+ // 2. Reduce by key: accept keys only when new location is not
+ return writeStatuses.map(writeStatus ->
writeStatus.getWrittenRecordDelegates().stream()
+ .map(recordDelegate -> Pair.of(recordDelegate.getRecordKey(),
recordDelegate)))
+ .flatMapToPair(Stream::iterator)
+ .reduceByKey((recordDelegate1, recordDelegate2) -> {
Review Comment:
Yeah, wondering whether we have better algorithm to tackle the deduplication
~
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