Wei-Chiu Chuang created HDFS-12485:
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Summary: expunge may not remove trash from non-home directory
encryption zone
Key: HDFS-12485
URL: https://issues.apache.org/jira/browse/HDFS-12485
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.0.0-alpha1, 2.8.0
Reporter: Wei-Chiu Chuang
Assignee: Wei-Chiu Chuang
If I log into Linux as root, and then login as the superuser h...@example.com
{noformat}
[root@nightly511-1 ~]# hdfs dfs -rm /scale/b
17/09/18 15:21:32 INFO fs.TrashPolicyDefault: Moved: 'hdfs://ns1/scale/b' to
trash at: hdfs://ns1/scale/.Trash/hdfs/Current/scale/b
[root@nightly511-1 ~]# hdfs dfs -expunge
17/09/18 15:21:59 INFO fs.TrashPolicyDefault:
TrashPolicyDefault#deleteCheckpoint for trashRoot: hdfs://ns1/user/hdfs/.Trash
17/09/18 15:21:59 INFO fs.TrashPolicyDefault:
TrashPolicyDefault#deleteCheckpoint for trashRoot: hdfs://ns1/user/hdfs/.Trash
17/09/18 15:21:59 INFO fs.TrashPolicyDefault: Deleted trash checkpoint:
/user/hdfs/.Trash/170918143916
17/09/18 15:21:59 INFO fs.TrashPolicyDefault:
TrashPolicyDefault#createCheckpoint for trashRoot: hdfs://ns1/user/hdfs/.Trash
[root@nightly511-1 ~]# hdfs dfs -ls hdfs://ns1/scale/.Trash/hdfs/Current/scale/b
-rw-r--r-- 3 hdfs systest 0 2017-09-18 15:21
hdfs://ns1/scale/.Trash/hdfs/Current/scale/b
{noformat}
expunge does not remove trash under /scale, because it does not know I am
'hdfs' user.
{code:title=DistributedFileSystem#getTrashRoots}
Path ezTrashRoot = new Path(it.next().getPath(),
FileSystem.TRASH_PREFIX);
if (!exists(ezTrashRoot)) {
continue;
}
if (allUsers) {
for (FileStatus candidate : listStatus(ezTrashRoot)) {
if (exists(candidate.getPath())) {
ret.add(candidate);
}
}
} else {
Path userTrash = new Path(ezTrashRoot, System.getProperty(
"user.name")); --> bug
try {
ret.add(getFileStatus(userTrash));
} catch (FileNotFoundException ignored) {
}
}
{code}
It should use UGI for user name, rather than system login user name.
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