CTTY commented on code in PR #8190:
URL: https://github.com/apache/hudi/pull/8190#discussion_r1183184527
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hudi-common/src/main/java/org/apache/hudi/metadata/FileSystemBackedTableMetadata.java:
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@@ -106,9 +106,9 @@ private List<String> getPartitionPathWithPathPrefix(String
relativePathPrefix) t
int listingParallelism = Math.min(DEFAULT_LISTING_PARALLELISM,
pathsToList.size());
// List all directories in parallel
- List<FileStatus> dirToFileListing = engineContext.flatMap(pathsToList,
path -> {
+ List<Pair<Path, Boolean>> dirToFileListing =
engineContext.flatMap(pathsToList, path -> {
FileSystem fileSystem = path.getFileSystem(hadoopConf.get());
- return Arrays.stream(fileSystem.listStatus(path));
+ return Arrays.stream(fileSystem.listStatus(path)).map(fileStatus ->
Pair.of(fileStatus.getPath(), fileStatus.isDirectory()));
}, listingParallelism);
Review Comment:
Yes, I'm from EMR and we reviewed EMRFS with its owner. It would be very
tricky to fix this on FS level and it would make more sense to fix this within
Hudi to make sure objects are serializable
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