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From Yonik Seeley <yo...@lucidimagination.com>
Subject Re: Checksum and transactional safety for lucene indexes
Date Fri, 24 Sep 2010 15:18:07 GMT
On Tue, Sep 21, 2010 at 12:53 AM, Lance Norskog <goksron@gmail.com> wrote:
> If an index file is not completely written to disk, it never become
> available. Lucene has a file describing the current active index segments.
> It writes all new files to the disk, and changes the description file
> (segments.gen) only after that.

Right - but it's segments_<n>
segments.gen is actually optional (IIRC, solr doesn't even replicate
it to slaves).

-Yonik
http://lucenerevolution.org   Lucene/Solr Conference, Boston Oct 7-8

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