Henning Kropp created CASSANDRA-7083:
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Summary: Authentication Support for CqlRecordWriter
Key: CASSANDRA-7083
URL: https://issues.apache.org/jira/browse/CASSANDRA-7083
Project: Cassandra
Issue Type: Bug
Components: Hadoop
Reporter: Henning Kropp
Attachments: auth_cql.patch
The {{CqlRecordWriter}} seems not to support authentication. When the keyspace
in Cassandra is to set to use authentication our Pig job fails with, when
credentials are provided using the URI ('cql://username:password...):
{code}
java.lang.RuntimeException: InvalidRequestException(why:You have not logged in)
at
org.apache.cassandra.hadoop.cql3.CqlRecordWriter.(CqlRecordWriter.java:123)
at
org.apache.cassandra.hadoop.cql3.CqlRecordWriter.(CqlRecordWriter.java:90)
at
org.apache.cassandra.hadoop.cql3.CqlOutputFormat.getRecordWriter(CqlOutputFormat.java:76)
at
org.apache.cassandra.hadoop.cql3.CqlOutputFormat.getRecordWriter(CqlOutputFormat.java:57)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.getRecordWriter(PigOutputFormat.java:84)
at
org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:553)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:408)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: InvalidRequestException(why:You have not logged in)
at
org.apache.cassandra.thrift.Cassandra$execute_cql3_query_result.read(Cassandra.java:38677)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
at
org.apache.cassandra.thrift.Cassandra$Client.recv_execute_cql3_query(Cassandra.java:1597)
at
org.apache.cassandra.thrift.Cassandra$Client.execute_cql3_query(Cassandra.java:1582)
at
org.apache.cassandra.hadoop.cql3.CqlRecordWriter.retrievePartitionKeyValidator(CqlRecordWriter.java:332)
at
org.apache.cassandra.hadoop.cql3.CqlRecordWriter.(CqlRecordWriter.java:108)
... 7 more
{code}
If not supplied in the URI but as a {{JobConf}} the exception:
{code}
Output Location Validation Failed for: 'cql://...' More info to follow:
InvalidRequestException(why:You have not logged in)
at org.apache.pig.newplan.logical.rules.InputOutputFileValidator$
{code}
Which let to the finding, that authentication is correctly supplied for
{{CqlStorage}} but not for the {{CqlRecordWriter}}.
May be it would make sense to put the authentication part into
{{ConfigHelper.getClientFromAddressList()}}? Then in {{CqlStorage} the username
and password in the conf would need to be set from the URI. If so the
{{ConfigHelper}} has all the information to authenticate and already returns
the client.
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