[ https://issues.apache.org/jira/browse/HDFS-16187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang updated HDFS-16187: ----------------------------------- Fix Version/s: 3.3.2 > SnapshotDiff behaviour with Xattrs and Acls is not consistent across NN > restarts with checkpointing > --------------------------------------------------------------------------------------------------- > > Key: HDFS-16187 > URL: https://issues.apache.org/jira/browse/HDFS-16187 > Project: Hadoop HDFS > Issue Type: Bug > Components: snapshots > Reporter: Srinivasu Majeti > Assignee: Shashikant Banerjee > Priority: Major > Labels: pull-request-available > Fix For: 3.4.0, 3.3.2 > > Time Spent: 5h > Remaining Estimate: 0h > > The below test shows the snapshot diff between across snapshots is not > consistent with Xattr(EZ here settinh the Xattr) across NN restarts with > checkpointed FsImage. > {code:java} > @Test > public void testEncryptionZonesWithSnapshots() throws Exception { > final Path snapshottable = new Path("/zones"); > fsWrapper.mkdir(snapshottable, FsPermission.getDirDefault(), > true); > dfsAdmin.allowSnapshot(snapshottable); > dfsAdmin.createEncryptionZone(snapshottable, TEST_KEY, NO_TRASH); > fs.createSnapshot(snapshottable, "snap1"); > SnapshotDiffReport report = > fs.getSnapshotDiffReport(snapshottable, "snap1", ""); > Assert.assertEquals(0, report.getDiffList().size()); > report = > fs.getSnapshotDiffReport(snapshottable, "snap1", ""); > System.out.println(report); > Assert.assertEquals(0, report.getDiffList().size()); > fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER); > fs.saveNamespace(); > fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE); > cluster.restartNameNode(true); > report = > fs.getSnapshotDiffReport(snapshottable, "snap1", ""); > Assert.assertEquals(0, report.getDiffList().size()); > }{code} > {code:java} > Pre Restart: > Difference between snapshot snap1 and current directory under directory > /zones: > Post Restart: > Difference between snapshot snap1 and current directory under directory > /zones: > M .{code} > The side effect of this behavior is : distcp with snapshot diff would fail > with below error complaining that target cluster has some data changed . > {code:java} > WARN tools.DistCp: The target has been modified since snapshot xxxxx > {code} -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org