We pass ExecutorService to Lucene's IndexSearcher at Amazon (for customer
facing product search) and it's a big win on long-pole query latencies, but
hurts red-line QPS (cluster capacity) a bit, due to less efficient
collection across segments and thread context switching.
I'm surprised it's not a
It'd take some work to do that. Years ago I recall Etsy did a POC and
shared their experience at Lucene/Solr Revolution in Washington DC; I
attended the presentation with great interest. One of the major obstacles,
if I recall, was the Collector needs to support this mode of operation, and
in par
