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Posted to solr-commits@lucene.apache.org by yo...@apache.org on 2010/03/16 04:07:46 UTC

svn commit: r923563 - /lucene/solr/branches/solr/CHANGES.txt

Author: yonik
Date: Tue Mar 16 03:07:45 2010
New Revision: 923563

URL: http://svn.apache.org/viewvc?rev=923563&view=rev
Log:
doc: add master/slave upgrade note

Modified:
    lucene/solr/branches/solr/CHANGES.txt

Modified: lucene/solr/branches/solr/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/solr/branches/solr/CHANGES.txt?rev=923563&r1=923562&r2=923563&view=diff
==============================================================================
--- lucene/solr/branches/solr/CHANGES.txt (original)
+++ lucene/solr/branches/solr/CHANGES.txt Tue Mar 16 03:07:45 2010
@@ -27,6 +27,9 @@ Upgrading from Solr 1.4
 
 * The Lucene index format has changed and as a result, once you upgrade, 
   previous versions of Solr will no longer be able to read your indices.
+  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.
 
 * The experimental ALIAS command has been removed (SOLR-1637)