bshashikant edited a comment on pull request #3340:
URL: https://github.com/apache/hadoop/pull/3340#issuecomment-916599655
Thanks @cnauroth . The problem here seems to be very specific to
snapshotRoot.
`
@Test
public void testXattrOnFileWithSnapshotAndNNRestart() throws Exception {
FileSystem.mkdirs(hdfs, path, FsPermission.createImmutable((short)
0700));
Path file = new Path(path, "file1");
FileSystem.create(hdfs, file, FsPermission.createImmutable((short)
07777));
hdfs.setXAttr(file, name1, value1);
hdfs.allowSnapshot(path);
hdfs.createSnapshot(path, snapshotName);
SnapshotDiffReport report =
hdfs.getSnapshotDiffReport(path, snapshotName, "");
System.out.println(report);
Assert.assertEquals(0, report.getDiffList().size());
report =
hdfs.getSnapshotDiffReport(path, snapshotName, "");
System.out.println(report);
Assert.assertEquals(0, report.getDiffList().size());
hdfs.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_ENTER);
hdfs.saveNamespace();
hdfs.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_LEAVE);
cluster.restartNameNode(true);
report =
hdfs.getSnapshotDiffReport(path, snapshotName, "");
System.out.println(report);
Assert.assertEquals(0, report.getDiffList().size());
}`
The same test with xattrs set on file inside the snapshotRoot/SubDirecory
will just work with/without the patch.
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