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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2893) index upgrade tool for /dev-tools
Date Thu, 27 Jan 2011 01:39:44 GMT
index upgrade tool for /dev-tools
---------------------------------

                 Key: LUCENE-2893
                 URL: https://issues.apache.org/jira/browse/LUCENE-2893
             Project: Lucene - Java
          Issue Type: Task
            Reporter: Robert Muir


we change the index format from time to time, and people tracking trunk have to re-index.

I think we should put a (unsupported, scary) tool in /dev-tools that uses the PreflexRW Codec
to
serialize the index to a 3.0 index (with your old trunk version), you can then deserialize
it back 
with the newer trunk version, to the newest StandardCodec.

this won't prevent all reindexes, but would work for changes under codec control.

mainly though, I think we could somehow add undeleteAll + this tool + apply deletes to prevent
the painful reindexing of luceneutil benchmarking indexes :)


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