The direct answer to your question us to use this theoretical super-fast hard drive as Linux swap space.
The better answer is to use federation or another solution if your needs exceed those servable by a single NameNode. Cheers. Colin On Oct 11, 2012 9:00 PM, "Mark Kerzner" <mark.kerz...@shmsoft.com> wrote: > Hi, > > Imagine I have a very fast hard drive that I want to use for the NameNode. > That is, I want the NameNode to store its blocks information on this hard > drive instead of in memory. > > Why would I do it? Scalability (no federation needed), many files are not > a problem, and warm fail-over is automatic. What would I need to change in > the NameNode to tell it to use the hard drive? > > Thank you, > Mark >
