System Permissions

Teradata

For a user to have read and write access to the target Teradata system, grant the following privileges to the target system user:

Grant select on DBC.ColumnsV to {User};
Grant select on DBC.AllRightsV to {User};
Grant select on DBC.UDTInfo to {User};
Grant select on DBC.TablesV to {User};
For the data field, Teradata supports CLOB, JSON, or VARCHAR. If you use VARCHAR and send a message larger than the preallocated column size, it is truncated.
Note
For Teradata version 14.10, send JSON messages as a VARCHAR or CLOB, but do not load data into a JSON column.

HDFS

You must have permission to create and modify files in HDFS for the defined data path. HDFS includes the following default configurations that are not adjustable:

ConfigurationValue
File Rotation Size 20 MB
File Rotation Time1 Day
Block Size128 MB
Buffer Size4 kb
Replication Factor3
File Naming Conventions/user/defined/path/[target_id]/file.seq
Compression CodeSequence
Before Listener can write data to an HDFS target for a Kerberized Hadoop instance, valid credentials for the following are required:
  • KDC
  • Principal
  • base64 encoded keytab file content
Listener 2.0 and later do not prevalidate the Kerberized HDFS target credentials provided by the end user.
The following example shows the fields where the credentials must be provided.
...
    "data_path": {
      "extension": "seq",
      "path": "/user/testuser/kerberos"
    },
    "properties":{
        "kdc":"ip-xxx-xx-xx-xxx.location.compute.internal:88",
        "principal":"testuser@ABC.LOCATION.COMPUTE.INTERNAL",
        "base64KeytabContent":"BQIAAABdAAE...F+zcAAAAB" 
}
 }' \
  -i \
  https://listener-app-services.teradata.com/v1/targets

HBase

You must have permission to access and write to the table and column family.

Aster

You must have permission to access and write data to the database and table.

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