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From <>
Subject RE: Index merge question
Date Tue, 10 Aug 2010 18:16:09 GMT
Would it matter if an IndexReader was opened while an index merge is in


-----Original Message-----
From: Erick Erickson [] 
Sent: Tuesday, August 10, 2010 12:03 PM
Subject: Re: Index merge question

When you open an IndexReader, Lucene effectively takes
a "snapshot" of the index and searches it until you reopen
your reader. So the timing of when the merged index gets
used is up to you, so you should be fine.


On Tue, Aug 10, 2010 at 11:28 AM, <> wrote:

> Hello,
> Is there any point during a merge operation where the index cannot be
> searched or is unstable? We want to create a bunch of smaller indexes
> parallel and then merge them into a single index that may have
> running against it.
> Thanks,
> Ian Koelliker

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