Shashikant Banerjee created HDFS-16132:
------------------------------------------
Summary: SnapshotDiff report fails with invalid path assertion
with external Attribute provider
Key: HDFS-16132
URL: https://issues.apache.org/jira/browse/HDFS-16132
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Shashikant Banerjee
Assignee: Shashikant Banerjee
The issue can be reproduced with the below unit test:
{code:java}
diff --git
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestINodeAttributeProvider.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestINodeAttributeProvider.java
index 512d1029835..27b80882766 100644 ---
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestINodeAttributeProvider.java
+++
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestINodeAttributeProvider.java
@@ -36,6 +36,7 @@ import org.apache.hadoop.hdfs.DistributedFileSystem; import
org.apache.hadoop.hdfs.HdfsConfiguration; import
org.apache.hadoop.hdfs.MiniDFSCluster; +import
org.apache.hadoop.hdfs.DFSTestUtil; import
org.apache.hadoop.security.AccessControlException; import
org.apache.hadoop.security.UserGroupInformation; import
org.apache.hadoop.util.Lists; @@ -89,7 +90,7 @@ public void
checkPermissionWithContext( AuthorizationContext authzContext)
throws AccessControlException { if (authzContext.getAncestorIndex() >
1 && authzContext.getInodes()[1].getLocalName().equals("user") -
&& authzContext.getInodes()[2].getLocalName().equals("acl")) { +
&& authzContext.getInodes()[2].getLocalName().equals("acl") ||
runPermissionCheck) {
this.ace.checkPermissionWithContext(authzContext); }
CALLED.add("checkPermission|" + authzContext.getAncestorAccess() @@ -598,6
+599,55 @@ public Void run() throws Exception { return null; }
}); + } + @Test + public void
testAttrProviderSeesResolvedSnapahotPaths1() throws Exception { +
runPermissionCheck = true; + FileSystem fs =
FileSystem.get(miniDFS.getConfiguration(0)); + DistributedFileSystem hdfs =
miniDFS.getFileSystem(); + final Path parent = new Path("/user"); +
hdfs.mkdirs(parent); + fs.setPermission(parent, new
FsPermission(HDFS_PERMISSION)); + final Path sub1 = new Path(parent,
"sub1"); + final Path sub1foo = new Path(sub1, "foo"); +
hdfs.mkdirs(sub1); + hdfs.mkdirs(sub1foo); + Path f = new Path(sub1foo,
"file0"); + DFSTestUtil.createFile(hdfs, f, 0, (short) 1, 0); +
hdfs.allowSnapshot(parent); + hdfs.createSnapshot(parent, "s0"); + + f =
new Path(sub1foo, "file1"); + DFSTestUtil.createFile(hdfs, f, 0, (short) 1,
0); + f = new Path(sub1foo, "file2"); + DFSTestUtil.createFile(hdfs, f,
0, (short) 1, 0); + + final Path sub2 = new Path(parent, "sub2"); +
hdfs.mkdirs(sub2); + final Path sub2foo = new Path(sub2, "foo"); + // mv
/parent/sub1/foo to /parent/sub2/foo + hdfs.rename(sub1foo, sub2foo); + +
hdfs.createSnapshot(parent, "s1"); + hdfs.createSnapshot(parent, "s2"); + +
final Path sub3 = new Path(parent, "sub3"); + hdfs.mkdirs(sub3); + //
mv /parent/sub2/foo to /parent/sub3/foo + hdfs.rename(sub2foo, sub3); + +
hdfs.delete(sub3, true); + UserGroupInformation ugi = +
UserGroupInformation.createUserForTesting("u1", new String[] { "g1" }); +
ugi.doAs(new PrivilegedExceptionAction<Void>() { + @Override + public
Void run() throws Exception { + FileSystem fs =
FileSystem.get(miniDFS.getConfiguration(0)); +
((DistributedFileSystem)fs).getSnapshotDiffReport(parent, "s1", "s2"); +
CALLED.clear(); + return null; + } + }); } }
{code}
It fails with the below error when executed:
{code:java}
org.apache.hadoop.ipc.RemoteException(java.lang.AssertionError): Absolute path
required, but got
'foo'org.apache.hadoop.ipc.RemoteException(java.lang.AssertionError): Absolute
path required, but got 'foo' at
org.apache.hadoop.hdfs.server.namenode.INode.checkAbsolutePath(INode.java:838)
at
org.apache.hadoop.hdfs.server.namenode.INode.getPathComponents(INode.java:813)
at
org.apache.hadoop.hdfs.server.namenode.INodesInPath.resolveFromRoot(INodesInPath.java:154)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.getINodeAttrs(FSPermissionChecker.java:447)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkSubAccess(FSPermissionChecker.java:507)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:403)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermissionWithContext(FSPermissionChecker.java:417)
at
org.apache.hadoop.hdfs.server.namenode.TestINodeAttributeProvider$MyAuthorizationProvider$MyAccessControlEnforcer.checkPermissionWithContext(TestINodeAttributeProvider.java:94)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:297)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1951)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1932)
at
org.apache.hadoop.hdfs.server.namenode.FSDirSnapshotOp.checkSubtreeReadPermission(FSDirSnapshotOp.java:317)
at
org.apache.hadoop.hdfs.server.namenode.FSDirSnapshotOp.getSnapshotDiffReportListing(FSDirSnapshotOp.java:208)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getSnapshotDiffReportListing(FSNamesystem.java:7238)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getSnapshotDiffReportListing(NameNodeRpcServer.java:2045){code}
This is a regression with https://issues.apache.org/jira/browse/HDFS-15372.
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