Big sstables, long compactions, in major compaction you will need to have free disk space in the size of all the sstables (which you should have anyway).

Shimi

On Sun, May 1, 2011 at 2:03 PM, David Boxenhorn <david@taotown.com> wrote:
I'm having problems administering my cluster because I have too many CFs (~40).

I'm thinking of combining them all into one big CF. I would prefix the current CF name to the keys, repeat the CF name in a column, and index the column (so I can loop over all rows, which I have to do sometimes, for some CFs).

Can anyone think of any disadvantages to this approach?