Fengdong Yu created HDFS-5670:
---------------------------------
Summary: FSPermission check is incorrect
Key: HDFS-5670
URL: https://issues.apache.org/jira/browse/HDFS-5670
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs-client, namenode
Affects Versions: 2.2.0, 3.0.0
Reporter: Fengdong Yu
Fix For: 3.0.0, 2.3.0
FSPermission check is incorrect after update in the trunk recently.
I submitted MR job using root, but the whole output directory must be owned by
root, otherwise, it throws Exception:
{code}
[root@10 ~]# hadoop fs -ls /
Found 1 items
drwxr-xr-x - hadoop supergroup 0 2013-12-15 10:04 /user
[root@10 ~]#
[root@10 ~]# hadoop fs -ls /user
Found 1 items
drwxr-xr-x - root root 0 2013-12-15 10:04 /user/root
{code}
{code}
[root@10 ~]# hadoop jar airui.jar /input /user/root/
Exception in thread "main" org.apache.hadoop.security.AccessControlException:
Permission denied: user=root, access=WRITE,
inode="/user":hadoop:supergroup:drwxr-xr-x
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:234)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:214)
at
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:161)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5410)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:3236)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInt(FSNamesystem.java:3190)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:3174)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.delete(NameNodeRpcServer.java:708)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.delete(ClientNamenodeProtocolServerSideTranslatorPB.java:514)
at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:605)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:932)
{code}
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