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From Grant Ingersoll <gsing...@apache.org>
Subject Re: Lucene Merge failing on Open Files
Date Fri, 15 Apr 2011 16:02:55 GMT

On Apr 14, 2011, at 3:24 PM, Simon Willnauer wrote:

> On Wed, Apr 6, 2011 at 8:44 PM, Grant Ingersoll <gsingers@apache.org> wrote:
>> 
>> 
>> Begin forwarded message:
>> 
>> From: Michael McCandless <lucene@mikemccandless.com>
>> Date: April 5, 2011 5:46:13 AM EDT
>> To: simon.willnauer@gmail.com
>> Cc: Simon Willnauer <simon.willnauer@googlemail.com>,
>> java-user@lucene.apache.org, paul_t100@fastmail.fm
>> Subject: Re: Lucene Merge failing on Open Files
>> Reply-To: java-user@lucene.apache.org
>> 
>> 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)
> 
> grant, we can at least add some documentation no?
> 

Definitely!  Docs good. 


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