Hi

I'm using Cassandra 1.1.0 from Datastax and attempting to build SST files to bulk load for a ColumnFamily with a single column with a Composite name.  For small inputs it seems to work and load correctly.  When I use larger dataset it is noticeably slower than code that isn't using a composite column.

Is there a problem using SSTableSimpleUnsortedWriter when a column has a composite name?  Am I doing it correctly?

I tried building the Composite outside the while loop and just copying it before adding components in each iteration but that didn't seem to help.

thanks
bri

Code based on bulk loading tutorial:

        List<AbstractType<?>> compositeList = new ArrayList<AbstractType<?>>();
        compositeList.add(UTF8Type.instance);
        compositeList.add(UTF8Type.instance);

        SSTableSimpleUnsortedWriter usersWriter = new SSTableSimpleUnsortedWriter(
                directory,
                new RandomPartitioner(),
                keyspace,
                columnFamily,
                CompositeType.getInstance(compositeList),
                null,
                32);

        String line;
        int lineNumber = 1;
        CsvEntry entry = new CsvEntry();
        // There is no reason not to use the same timestamp for every column in that example.
        long timestamp = System.currentTimeMillis() * 1000;
        while ((line = reader.readLine()) != null)
        {
            if (entry.parse(line, lineNumber))
            {
                if ( (lineNumber % 10000) == 0) {
                    System.out.println("Line "+lineNumber);
                }
                CompositeType.Builder builder = new CompositeType.Builder( CompositeType.getInstance(compositeList) );
                String siteKey = entry.key;
                usersWriter.newRow(bytes( siteKey ));
                builder.add(bytes(entry.part1));
                builder.add(bytes(entry.part2));
                usersWriter.addColumn(builder.build(), bytes(entry.date), timestamp);
            }
            lineNumber++;
        }