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Re: How to Create file in HDFS using java Client with Permission
As per the error below, the user trying to write/read the file does not
have appropriate permission.

File not found org.apache.hadoop.security.
AccessControlException: Permission denied: user=hadoop, access=WRITE,
inode="/user/dasmohap/samir_tmp":dasmohap:dasmohap:drwxr-xr-x

HTH,
Anil

On Fri, Mar 1, 2013 at 3:20 AM, samir das mohapatra <[EMAIL PROTECTED]
> wrote:

> Hi All,
>     I wanted to know to to create file in hdfs using java program.
>
>   I wrote some code it is working fine in dev cluster but I am getting
> error in other cluster.
>
> Error:
> Writing data into HDFS...................
> Creating file
> File not found org.apache.hadoop.security.AccessControlException:
> Permission denied: user=hadoop, access=WRITE,
> inode="/user/dasmohap/samir_tmp":dasmohap:dasmohap:drwxr-xr-x
>     at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:205)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:186)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:135)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:4547)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkAncestorAccess(FSNamesystem.java:4518)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:1755)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:1690)
>     at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:1669)
>     at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:409)
>     at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:205)
>     at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44068)
>     at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
>     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:898)
>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1693)
>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1689)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at javax.security.auth.Subject.doAs(Subject.java:396)
>     at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1332)
>     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1687)
>
>
> Regards,
> samir.
>

--
Thanks & Regards,
Anil Gupta