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From Apache Wiki <wikidi...@apache.org>
Subject [Solr Wiki] Update of "Solr1.4" by HossMan
Date Mon, 23 Nov 2009 19:16:44 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Solr Wiki" for change notification.

The "Solr1.4" page has been changed by HossMan.
The comment on this change is: add upgrading instructions.
http://wiki.apache.org/solr/Solr1.4?action=diff&rev1=19&rev2=20

--------------------------------------------------

  
  == Post Release Notes ==
  
-    * After the final release, it was noted that [[https://issues.apache.org/jira/browse/SOLR-1432|SOLR-1432]]
was not mentioned in the CHANGES.txt file.  This issue uncovered a bug in the way !FunctionQueries
were scored, and was exacerbated by changes made in Lucene 2.9 related to pushing scoring
down to a !SegmentReader level.  The fix for this issue resulted in some API additions to
the !ValueSource class.  All !ValueSource implementations provided by Solr were fixed to implement
this API, but third-party plugins may behave unexpectedly if they do not override this new
method.
+ === Upgrading from 1.3 ===
  
+ The following instructions were inadvertantly omited from the "Upgrading from Solr 1.3"
section of CHANGES.txt...
+ 
+ {{{
+ IMPORTANT UPGRADE NOTE: In a master/slave configuration, all searchers/slaves
+ should be upgraded before the master!  If the master were to be updated
+ first, the older searchers would not be able to read the new index format.
+ 
+         ...
+ 
+ Older Apache Solr installations can be upgraded by replacing
+ the relevant war file with the new version.  No changes to configuration
+ files should be needed.
+ 
+ This version of Solr contains a new version of Lucene implementing
+ an updated index format.  This version of Solr/Lucene can still read
+ and update indexes in the older formats, and will convert them to the new
+ format on the first index change.  Be sure to backup your index before
+ upgrading in case you need to downgrade.
+ }}}
+ 
+ === ValueSource API changes ===
+ 
+ After the final release, it was noted that [[https://issues.apache.org/jira/browse/SOLR-1432|SOLR-1432]]
was not mentioned in the CHANGES.txt file.  This issue uncovered a bug in the way !FunctionQueries
were scored, and was exacerbated by changes made in Lucene 2.9 related to pushing scoring
down to a !SegmentReader level.  The fix for this issue resulted in some API additions to
the !ValueSource class.  All !ValueSource implementations provided by Solr were fixed to implement
this API, but third-party plugins may behave unexpectedly if they do not override this new
method.
+ 

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