0.8.0 has just been released. You can download it here. This release includes several bug fixes and memory footprint improvements, and one major feature, Hadoop integration. This allows to use Hadoop HDFS as elasticsearch gateway storage, and enabling it is as simple as:
Installing the hadoop plugin using
bin/plugin -install hadoop.
Changing the configuration to include:
gateway: type: hdfs hdfs: uri: hdfs://host:port path: path/to/folder