mirror of https://github.com/apache/lucene.git
upgrade to Lucene 2.1
git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@508806 13f79535-47bb-0310-9956-ffa450edef68
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CHANGES.txt
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CHANGES.txt
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@ -25,6 +25,23 @@ $Id$
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Upgrading from Solr 1.1
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-------------------------------------
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IMPORTANT UPGRADE NOTE: In a master/slave configuration, all searchers/slaves
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should be upgraded before the master! If the master were to be updated
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first, the older searchers would not be able to read the new index format.
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Older Apache Solr installations can be upgraded by replacing
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the relevant war file with the new version. No changes to configuration
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files should be needed.
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This version of Solr contains a new version of Lucene implementing
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an updated index format. This version of Solr/Lucene can still read
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and update indexes in the older formats, and will convert them to the new
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format on the first index change. One change in the new index format
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is that all "norms" are kept in a single file, greatly reducing the number
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of files per segment. Users of compound file indexes will want to consider
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converting to the non-compound format for faster indexing and slightly better
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search concurrency.
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The JSON response format for facets has changed to make it easier for
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clients to retain sorted order. Use json.nl=map explicitly in clients
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to get the old behavior, or add it as a default to the request handler
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@ -117,7 +134,7 @@ Bug Fixes
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were being ignored by all "out of the box" RequestHandlers. (hossman)
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Other Changes
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1.
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1. Updated to Lucene 2.1
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================== Release 1.1.0, 20061222 ==================
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Apache SVN contains full history.
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