: Subject: Re: Where is upgrading documentation?
:
: CHANGES.txt contains information, but no instructions.
Hmmm.... i see what you mean. we typically have a nice boiler plate set of
instructions, and somehow those got removed from the 1.4 changes.
in a nutshell, the instructions are the same as 1.3...
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.
: http://wiki.apache.org/solr/Solr1.4
-Hoss
