[HADOOP-10798] globStatus() should always return a sorted list of files

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Labels: BB2015-05-TBR
• Target Version/s: 2.8.0
• Assignee: Colin McCabe
• Reporter: Felix Borchers
• Created: 08/Jul/14 13:22
• Updated: 30/Aug/16 01:32
• Resolved: 30/Jun/15 23:43

Description

(FileSystem) globStatus() does not return a sorted file list anymore.

But the API says: " ... Results are sorted by their names."

Seems to be lost, when the Globber Object was introduced. Can't find a sort in actual code.

code to check this behavior:

        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(conf);
        Path path = new Path("/tmp/" + System.currentTimeMillis());
        fs.mkdirs(path);
        fs.deleteOnExit(path);
        fs.createNewFile(new Path(path, "2"));
        fs.createNewFile(new Path(path, "3"));
        fs.createNewFile(new Path(path, "1"));

        FileStatus[] status = fs.globStatus(new Path(path, "*"));
        Collection list = new ArrayList();
        for (FileStatus f: status) {
            list.add(f.getPath().toString());
            //System.out.println(f.getPath().toString());
        }
        boolean sorted = Ordering.natural().isOrdered(list);
        Assert.assertTrue(sorted);

Issue Links

• is related to: HADOOP-12177 [Umbrella] Update and extend filesystem specification