Parasitic Hadoop for backups
A while ago, i thought about about parasitic hadoop in order to use unused resources on systems not loaded. An hadoop node installed on machines used for different things and configured in a way, that it just uses the resources left over by the host (the application you’ve bought the server for). iIn my experience, the most unloaded system part are the boot disks (to big and often not loaded). Ben Rockwood of cuddletech.com had a great idea: Using the Hadoop Distributed File System to store ZFS dumps. Read more about it in his blog.