Thanks for clearing that up guys, I misspoke slightly. It's just that, in a running system, it's probably very rare that there is only a single segment for any meaningful length of time. Unless that merge-down-to-one occurs right when indexing stops there will almost always be a new (small) segment following immediately after the merge. It would be interesting to observe, over a long time, how often and for how long everything is merged down to a single segment.
Probably with a very low mergeFactor (2 or 3?) merges-to-one might occur often enough to make optimizing unnecessary. But I'm guessing that the merge-to-one happens so infrequently in most situations that optimizing is more important. -Jay On Mon, Feb 22, 2010 at 12:16 PM, Mark Miller <markrmil...@gmail.com> wrote: > Also, a mergefactor of 1 is actually invalid - 2 is the lowest you can go. > > > > -- > - Mark > > http://www.lucidimagination.com > > > >
