bq: Do I have an incorrect understanding of how this works?
If I take "OS disk cache" to include the OS's memory available as a
result of MMapDirectory, you'r spot on.
I want to quibble a bit with (1) above. If you search on a
docValues=true indexed=false field it's terrible unless you have a
On 10/17/2017 2:09 AM, Julian Ohrt wrote:
The Solr 6.6 documentation states:
In cases where the query is returning only docValues fields performance may
improve since returning stored fields requires disk reads and decompression
whereas returning docValues fields in the fl list only requires
See: SOLR-8344 and the JIRAs linked for a pretty extensive discussion.
Note, you can force some of this in some other versions by specifying
useDocValuesAsStored (since 5.5).
How you'd verify I'm not quite sure. That kind of information isn't
put in the logs.
On Tue, Oct 17, 2017 at 1:09 AM,
