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https://issues.apache.org/jira/browse/HDFS-15667?focusedWorklogId=508345&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-508345
]
ASF GitHub Bot logged work on HDFS-15667:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Nov/20 03:16
Start Date: 06/Nov/20 03:16
Worklog Time Spent: 10m
Work Description: ferhui commented on a change in pull request #2437:
URL: https://github.com/apache/hadoop/pull/2437#discussion_r518500077
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLoggerWithCommands.java
##########
@@ -1205,6 +1205,18 @@ public void testGetDatanodeStorageReport() throws
Exception {
}
}
+ @Test
+ public void testDeleteRoot() throws Exception {
+ Path srcDir = new Path("/");
+ fileSys = DFSTestUtil.getFileSystemAs(user1, conf);
+ boolean result = fileSys.delete(srcDir, true);
+ fileSys.close();
+ assertTrue(result == false);
Review comment:
As CI reports, it could be more simple here, assertFalse(result)?
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Issue Time Tracking
-------------------
Worklog Id: (was: 508345)
Time Spent: 2h 50m (was: 2h 40m)
> Audit log record the unexpected allowed result when delete called
> -----------------------------------------------------------------
>
> Key: HDFS-15667
> URL: https://issues.apache.org/jira/browse/HDFS-15667
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.2.1, 3.4.0
> Reporter: Baolong Mao
> Assignee: Baolong Mao
> Priority: Major
> Labels: pull-request-available
> Attachments: screenshot-1.png, screenshot-2.png
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> I met this issue if rm root directory, for remove non-root and non-empty
> directory, toRemovedBlocks isn't null, its toDeleteList size is 0.
> !screenshot-1.png!
> when will return null?
> Through this screenshot, we can find that if fileRemoved = -1, then
> toRemovedBlocks = null
> !screenshot-2.png!
> And when deleteAllowed(iip) return false, fileRemoved can be -1,
> {code:java}
> private static boolean deleteAllowed(final INodesInPath iip) {
> if (iip.length() < 1 || iip.getLastINode() == null) {
> if (NameNode.stateChangeLog.isDebugEnabled()) {
> NameNode.stateChangeLog.debug(
> "DIR* FSDirectory.unprotectedDelete: failed to remove "
> + iip.getPath() + " because it does not exist");
> }
> return false;
> } else if (iip.length() == 1) { // src is the root
> NameNode.stateChangeLog.warn(
> "DIR* FSDirectory.unprotectedDelete: failed to remove " +
> iip.getPath() + " because the root is not allowed to be
> deleted");
> return false;
> }
> return true;
> }
> {code}
> Through the code of deleteAllowed, we can find that when src is the root, it
> can return false.
> So without this PR, when I execute *bin/hdfs dfs -rm -r /*
> I find the confusing auditlog line like following
> 2020-11-05 14:32:53,420 INFO FSNamesystem.audit
> (FSNamesystem.java:logAuditMessage(8102)) - allowed=true
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