Begin forwarded message:

> From: Michael McCandless <[email protected]>
> Date: April 5, 2011 5:46:13 AM EDT
> To: [email protected]
> Cc: Simon Willnauer <[email protected]>, 
> [email protected], [email protected]
> Subject: Re: Lucene Merge failing on Open Files
> Reply-To: [email protected]
> 
> Yeah, that mergeFactor is way too high and will cause
> too-many-open-files (if the index has enough segments).

This is one of the things that has always bothered me about Merge Factor.  We 
state what the lower bound is, but we don't doc the upper bound.   Should we 
even allow higher values?  Of course, how does one pick the cutoff?  I've seen 
up to about 100 be effective.  But 3000 is a bit high (although, who knows what 
the future will hold)

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