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From "Fengdong Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5670) FSPermission check is incorrect
Date Sun, 15 Dec 2013 03:36:07 GMT
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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