LUCENE-1516 and near real time search

[Grant Ingersoll]

https://issues.apache.org/jira/browse/LUCENE-1516
Has anyone looked yet at how https://issues.apache.org/jira/browse/LUCENE-1516 
 might be used in Solr?  Seems like it might allow us to speed up  
searcher turnaround.

WDYT?