I am getting the following error even though that file exists in hdfs

0: jdbc:drill:zk=local> select * from
hdfs.`/user/train/xd/tweets/tmp/tweets-0.txt`;
Oct 22, 2014 5:16:31 PM org.eigenbase.sql.validate.SqlValidatorException
<init>
SEVERE: org.eigenbase.sql.validate.SqlValidatorException: Table
'hdfs./user/train/xd/tweets/tmp/tweets-0.txt' not found
Oct 22, 2014 5:16:31 PM org.eigenbase.util.EigenbaseException <init>
SEVERE: org.eigenbase.util.EigenbaseContextException: From line 1, column
15 to line 1, column 18: Table
'hdfs./user/train/xd/tweets/tmp/tweets-0.txt' not found
Query failed: Failure while parsing sql. Table
'hdfs./user/train/xd/tweets/tmp/tweets-0.txt' not found
[7e1d5c73-0521-480e-b74b-a4fa50e3f4a7]
Error: exception while executing query: Failure while trying to get next
result batch. (state=,code=0)


I created new plugin called hdfs.

{
  "type": "file",
  "enabled": true,
  "connection": "hdfs://10.225.156.201:9000/",
  "workspaces": {
    "json": {
      "location": "/user/train/xd/tweets/tmp",
      "writable": false,
      "storageformat": "json"
    }
  },
  "formats": {
    "json": {
      "type": "json"
    }
  }
}