Think about future upgrade path [JIRA: RIAK-1589]

[rzezeski]

After Riak 2.0 goes out the door Yokozuna will be locked to a specific Solr version. What will the upgrade path look like in the future when the Solr version is changed?

• How do users typically upgrade single-node Solr clusters?
• Are there any official documents or policies for Solr upgrades in the Apache documentation.
• Will Solr distributed search work when spanning a group of shards consisting of two different Solr versions?
• If solrconfig.xml changes are required how do we deal with that?
• What about solr.xml?
• What about the schema?
• What about newer versions requiring upgrade to JVM?
• Etc.

[ghost]

Any thoughts on this issue? There's a couple of interesting features in the newer releases of SOLR that be'd nice to track.

[zeeshanlakhani]

@Boardom we've definitely discussed it and want to put some work into it, especially with SOLR 5's recent release. We're in the midst of getting some other fixes/updates out first however.

[zeeshanlakhani]

@Boardom, just wanted to check-in, but for discussions going on, which features would you like to take advantage of specifically?

[Vorticity-Flux]

DateRangeField would be very useful (added in Solr 5.0).
http://lucene.apache.org/solr/5_1_0/solr-core/org/apache/solr/schema/DateRangeField.html
Use cases and workaround for 4.7: https://people.apache.org/~hossman/spatial-for-non-spatial-meetup-20130117/