kite-sdk/kite — pull request #114 by rdblue (2014-06-23 20:29:12+00:00)
Title: CDK-492: Add DurableParquetAppender.

This appender wraps an AvroAppender and a ParquetAppender to provide
durability by writing to Avro in tandem with writing parquet files
directly. After the file is closed, the avro copy is removed in a new
cleanup phase in the appender. Any failure requires recovery using the
Avro files.