Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/3598#discussion_r107863788
--- Diff:
flink-core/src/main/java/org/apache/flink/core/fs/local/LocalFileSystem.java ---
@@ -262,8 +265,13 @@ public FSDataOutputStream create(
public boolean rename(final Path src, final Path dst) throws
IOException {
final File srcFile = pathToFile(src);
final File dstFile = pathToFile(dst);
-
- return srcFile.renameTo(dstFile);
+ //Files.move fails if the destination directory doesn't exist
+ if(dstFile.getParentFile()!= null &&
!dstFile.getParentFile().exists()){
+
Files.createDirectories(dstFile.getParentFile().toPath());
+ }
+ //this throws an IOException if any error occurs
+ Files.move(srcFile.toPath(), dstFile.toPath(),
StandardCopyOption.REPLACE_EXISTING);
--- End diff --
If we want to preserve the old semantics, we should catch the exception and
return `false` in that case.
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