Hi

 

I have an issue while inserting a composite column name to one of the Cassandra column families. Below is a detailed description of what I had done and stuck up at.

Please let me know where I had went wrong.

 

Requirement:

------------------

       Rowkey        ->     RowIdString

       Column name   ->     TEXT1 : value1 : TEXT2 : value2 : TEXT3

       Column value ->     value3

 

Column family definition:

-------------------------------

                create column family CompositeColumnNameTest

       WITH comparator='CompositeType(UTF8Type,UTF8Type,UTF8Type,UTF8Type,UTF8Type)'

       AND key_validation_class=UTF8Type

       WITH compression_options={sstable_compression:SnappyCompressor, chunk_length_kb:64};

 

Code:

--------

                String RowIdString = "1234";

 

       Composite composite = new Composite();

       composite.addComponent("TEXT1", StringSerializer.get());

       composite.addComponent("value1", StringSerializer.get());

       composite.addComponent("TEXT2", StringSerializer.get());

       composite.addComponent("value3", StringSerializer.get());

       composite.addComponent("TEXT3", StringSerializer.get());

      

       Column column = new Column(composite.serialize());

       column.setValue("value3".getBytes());

       column.setTimestamp(System.currentTimeMillis());

      

       // push data to cassandra

       batchMutate.addInsertion(RowIdString, "CompositeColumnNameTest", column);

       keyspaceServiceImpl.batchMutate(batchMutate);

               

Exception:

-------------

me.prettyprint.hector.api.exceptions.HInvalidRequestException: InvalidRequestException(why:Not enough bytes to read value of component 0)

       at me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:45)

       at me.prettyprint.cassandra.service.KeyspaceServiceImpl$1.execute(KeyspaceServiceImpl.java:97)

       at me.prettyprint.cassandra.service.KeyspaceServiceImpl$1.execute(KeyspaceServiceImpl.java:90)

       at me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:103)

       at me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:258)

       at me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:131)

 

 

Thanks in advance

-Anand




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