redis2hdfs is a command line tool to help you export Redis data to HDFS. It use SCAN related commands to iterate elements (no KEYS), so you can use in production safely.
NOTE: ensure WebHDFS is enabled.
$ pip install redis2hdfs
$ redis2hdfs --redis-key myzset --namenode-host namenode.example.com --hdfs-username hdfs --hdfs-path /tmp/myzset.lzo --compress-format lzo
redis2hdfs could compress file before copy to HDFS, through --compress-format option. Currently supported compress formats are: LZO.
If you want to use LZO format, you need install lzop first.
redis2hdfs supports Redis global-style key pattern, so you can specify --redis-key like *abc*. redis2hdfs will copy all matched keys' data to HDFS, at this time the --hdfs-path option will be the parent directory to store data.
For more information, just run redis2hdfs --help.
$ mkvirtualenv redis2hdfs $ python setup.py develop $ pip install -r tests-req.txt $ nosetests -v