It is useful for parsing PDFs on a multi-processor machine. Also, if a
sub-entity does an outbound I/O call to a database, a file, or another
SOLR (SOLR-1499).
Anything where the pipeline time outweighs disk i/o time.
Threading happens on a per-document level- there is no concurrent
access inside
Mark,
I have the same question so I did a little research on this. Not a complete
answer but here is what I've found:
- "threads" was aded with SOLR-1352
(https://issues.apache.org/jira/browse/SOLR-1352).
- Also see
http://www.lucidimagination.com/search/document/a9b26ade46466ee/queries_rega
Anyone know how it works?
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