ayushtkn commented on a change in pull request #2793:
URL: https://github.com/apache/hive/pull/2793#discussion_r753953113
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File path: common/src/java/org/apache/hadoop/hive/common/FileUtils.java
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@@ -661,11 +663,50 @@ static boolean copy(FileSystem srcFS, Path src,
// is tried and it fails. We depend upon that behaviour in cases like
replication,
// wherein if distcp fails, there is good reason to not plod along with
a trivial
// implementation, and fail instead.
+ boolean shouldPreserveXAttrs = shouldPreserveXAttrs(conf, srcFS, dstFS);
+ Map<Path, Map<String, byte[]>> XAttrsToDestMapping = null;
+ if (shouldPreserveXAttrs) {
+ XAttrsToDestMapping = new HashMap<>();
+ fetchXAttrs(XAttrsToDestMapping, srcFS, srcFS.getFileStatus(src), dst);
+ }
copied = FileUtil.copy(srcFS, src, dstFS, dst, deleteSource, overwrite,
conf);
+ if (copied && shouldPreserveXAttrs) {
+ for (Map.Entry<Path, Map<String, byte[]>> xAttrs :
XAttrsToDestMapping.entrySet()) {
+ for (Map.Entry<String, byte[]> val : xAttrs.getValue().entrySet()) {
+ dstFS.setXAttr(xAttrs.getKey(), val.getKey(), val.getValue());
+ }
+ }
+ }
}
return copied;
}
+ public static void fetchXAttrs(Map<Path, Map<String, byte[]>> xAttrs,
FileSystem srcFS, FileStatus srcStatus, Path dst) throws IOException {
+ Path src = srcStatus.getPath();
+ Path dstFile = new Path(dst, src.getName());
Review comment:
Check the path resolution, It won't work in couple of cases like if src
is a file & /dst doesn't exist.
Can extract the logic for FileUtils.copy from hadoop & have a preserveXAttr
flag additional
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