That is true.
Good question on converting an already optimized index... I haven't
tested this, and it's somewhat roundabout, but you may be able to open
an IndexWriter, then call setUseCompoundFile with the opposite of what
your index presently has, run optimize, set that back, and run
optimize again. I think it should work.
You could also add and then delete a single doc, then call optimize.
Mike
An Hong wrote:
I've several existing indexes in 2.1 file format. If these indexes
have multiple segments and have not been optimized, a call to
IndexWriter.optimize() should create a newly merged segment of the
latest 2.4 file format. Is this true? And, is there a way to force
a file format upgrade on a 2.1 index that's already in optimized
state?
Thanks,
An
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