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https://issues.apache.org/jira/browse/HDFS-12485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206567#comment-16206567
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Hudson commented on HDFS-12485:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13091 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13091/])
HDFS-12485. expunge may fail to remove trash from encryption zone. (weichiu:
rev 8dbc8909c92d502d10a7f94d1de3171878a43b04)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestTrashWithSecureEncryptionZones.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java
> expunge may fail to remove trash from encryption zone
> -----------------------------------------------------
>
> Key: HDFS-12485
> URL: https://issues.apache.org/jira/browse/HDFS-12485
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.8.0, 3.0.0-alpha1
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Fix For: 2.9.0, 2.8.3, 3.0.0
>
> Attachments: HDFS-12485.001.patch
>
>
> This is related to HDFS-12484, but turns out that even if I have super user
> permission, -expunge may not remove trash either.
> 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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