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From: Stuti Awasthi <stutiawasthi@hcl.com>
To: "hdfs-user@hadoop.apache.org" <hdfs-user@hadoop.apache.org>
Date: Thu, 19 Jan 2012 16:10:43 +0530
Subject: RE: Issues in fuse_dfs (Hadoop-1.0.0)
Thread-Topic: Issues in fuse_dfs (Hadoop-1.0.0)
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No, I have not set any security in conf/sites file. My sites file have just=
 basic entries to start the hdfs cluster.

-----Original Message-----
From: alo alt [mailto:wget.null@googlemail.com]=20
Sent: Thursday, January 19, 2012 4:05 PM
To: hdfs-user@hadoop.apache.org
Subject: Re: Issues in fuse_dfs (Hadoop-1.0.0)

Did ou have security enabled in your hadoop installation?


--
Alexander Lorenz
http://mapredit.blogspot.com

On Jan 19, 2012, at 10:02 AM, Stuti Awasthi wrote:

> Hi Kartheek,
> I am building fuse_dfs as a root user. I have also configured Hadoop as r=
oot user and it is working fine.
> =20
> From: kartheek muthyala [mailto:kartheek0274@gmail.com]
> Sent: Thursday, January 19, 2012 12:08 PM
> To: hdfs-user@hadoop.apache.org
> Subject: Re: Issues in fuse_dfs (Hadoop-1.0.0)
> =20
> Stuti: Did you by any chance created hadoop using non-root user??
> Thanks,
> Kartheek.
>=20
> On Thu, Jan 19, 2012 at 11:56 AM, Stuti Awasthi <stutiawasthi@hcl.com> wr=
ote:
> Any one has idea about why fuse_dfs of Hadoop-1.0.0 requires authenticati=
on for mount ??
> =20
> From: Stuti Awasthi
> Sent: Wednesday, January 18, 2012 4:33 PM
> To: hdfs-user@hadoop.apache.org
> Subject: Issues in fuse_dfs (Hadoop-1.0.0)
> =20
> Hi All,
> =20
> I am able to successfully built fuse_dfs shipped with Hadoop-1.0.0 but wh=
en I try to mount HDFS using fuse_dfs_wrapper.sh I get the following error =
.When I used fuse_dfs built from hadoop-0.20.2 , I do not get any such erro=
r and I am able to mount properly.
> Can anyone help me to fix this?
> =20
> [root@slave fuse-dfs]# ./fuse_dfs_wrapper.sh dfs://slave:54310 /mnt -d=20
> port=3D54310,server=3Dslave fuse-dfs didn't recognize /mnt,-2 fuse-dfs=20
> ignoring option -d FUSE library version: 2.8.3
> nullpath_ok: 0
> unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
> INIT: 7.13
> flags=3D0x0000007b
> max_readahead=3D0x00020000
>    INIT: 7.12
>    flags=3D0x00000011
>    max_readahead=3D0x00020000
>    max_write=3D0x00020000
>    unique: 1, success, outsize: 40
> unique: 2, opcode: STATFS (17), nodeid: 1, insize: 40 statfs /
>    unique: 2, success, outsize: 96
> unique: 3, opcode: GETATTR (3), nodeid: 1, insize: 56 getattr /=20
> Exception in thread "Thread-2" java.io.IOException: failure to login
>         at org.apache.hadoop.security.UserGroupInformation.getLoginUser(U=
serGroupInformation.java:452)
>         at org.apache.hadoop.security.UserGroupInformation.getCurrentUser=
(UserGroupInformation.java:414)
>         at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:111)
> Caused by: javax.security.auth.login.LoginException: unable to find Login=
Module class: org/apache/hadoop/security/UserGroupInformation$HadoopLoginMo=
dule
>         at javax.security.auth.login.LoginContext.invoke(LoginContext.jav=
a:823)
>         at javax.security.auth.login.LoginContext.access$000(LoginContext=
.java:203)
>         at javax.security.auth.login.LoginContext$5.run(LoginContext.java=
:721)
>         at javax.security.auth.login.LoginContext$5.run(LoginContext.java=
:719)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.login.LoginContext.invokeCreatorPriv(Login=
Context.java:718)
>         at javax.security.auth.login.LoginContext.login(LoginContext.java=
:590)
>         at org.apache.hadoop.security.UserGroupInformation.getLoginUser(U=
serGroupInformation.java:433)
>         ... 2 more
> Call to org.apache.hadoop.fs.Filesystem::get(URI, Configuration) failed!
>    unique: 3, error: -5 (Input/output error), outsize: 16
> =20
> Thanks
> =20
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