Blur by default uses a SearchExecutor for IndexSearcher. I believe lucene helps searching segments of a single shard in parallel.
Our previous index was built on a lower version of lucene where such a feature was absent and we ran sequential search per shard only… What is the general recommendation for blur? Is it advisable to use the SearchExecutor? What will happen when there are many parallel queries for different shards. Will SearchExecutor become a bottle-neck? Any help is much appreciated... -- Ravi
