On 1/24/2013 8:42 AM, Ken Prows wrote:
I didn't see any mention of field compression in the release notes for
Solr 4.1. Did the ability to automatically compress fields end up
getting added to this release?
The concept of compressed fields (an option in schema.xml) that existed
in the 1.x versions of Solr (based on Lucene 2.9) was removed in Lucene
3.0. Because Lucene and Solr development were combined, the Solr
version after 1.4.1 is 3.1.0, there is no 1.5 or 2.x version of Solr.
Solr/Lucene 4.1 compresses all stored field data by default. I don't
think there's a way to turn it off at the moment, which is causing
performance problems for a small subset of Solr users. When it comes
out, Solr 4.2 will also have compressed term vectors.
The release note contains this text:
Stored fields are compressed. (See
http://blog.jpountz.net/post/33247161884/efficient-compressed-stored-fields-with-lucene)
It looks like the solr CHANGES.txt file fails to specifically mention
LUCENE-4226 <https://issues.apache.org/jira/browse/LUCENE-4226> which
implemented compressed stored fields.
Thanks,
Shawn
