[jira] [Assigned] (CASSANDRA-6180) NPE in CqlRecordWriter: Related to AbstractCassandraStorage handling null values

["Alex Liu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-6180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alex Liu reassigned CASSANDRA-6180:
-----------------------------------

    Assignee: Alex Liu

> NPE in CqlRecordWriter: Related to AbstractCassandraStorage handling null values
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6180
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6180
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>         Environment: Pig, CqlStorage
>            Reporter: Henning Kropp
>            Assignee: Alex Liu
>         Attachments: null_test.pig, patch.txt, test_null.cql, test_null_data
>
>
> I encountered an issue with the {{CqlStorage}} and it's handling of null values. The {{CqlRecordWriter}} throws an NPE when a value is null. I found a related ticket CASSANDRA-5885 and applied the there stated fix to the {{AbstractCassandraStorage}}.
> Instead of converting {{null}} values to {{ByteBuffer.wrap(new byte[0])}} {{AbstractCassandraStorage}} returns {{(ByteBuffer)null}}
> This issue can be reproduced with the attached files: {{test_null.cql}}, {{test_null_data}}, {{null_test.pig}}
> A fix can be found in the attached patch.
> {code}
> java.io.IOException: java.lang.NullPointerException
> 	at org.apache.cassandra.hadoop.cql3.CqlRecordWriter$RangeClient.run(CqlRecordWriter.java:248)
> Caused by: java.lang.NullPointerException
> 	at org.apache.thrift.protocol.TBinaryProtocol.writeBinary(TBinaryProtocol.java:194)
> 	at org.apache.cassandra.thrift.Cassandra$execute_prepared_cql3_query_args.write(Cassandra.java:41253)
> 	at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:63)
> 	at org.apache.cassandra.thrift.Cassandra$Client.send_execute_prepared_cql3_query(Cassandra.java:1683)
> 	at org.apache.cassandra.thrift.Cassandra$Client.execute_prepared_cql3_query(Cassandra.java:1673)
> 	at org.apache.cassandra.hadoop.cql3.CqlRecordWriter$RangeClient.run(CqlRecordWriter.java:232)
> {code}



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