Hi David, Jason and Otis,
Thank you for the feedback on the question. It is very much appreciated.
To confirm what caches are being used, I will remove on of the Solr servers
from the cluster, restart it, note the status of the various Solr caches,
issue some MLT queries to it, and compare the st
This is correct, doc cache for previously read docs regardless of which
query read them and query cache for repeat query. Plus OS cache for actual
index files.
Otis
Solr & ElasticSearch Support
http://sematext.com/
On May 9, 2013 2:32 PM, "Jason Hellman"
wrote:
> Purely from empirical observati
Purely from empirical observation, both the DocumentCache and QueryResultCache
are being populated and reused in reloads of a simple MLT search. You can see
in the cache inserts how much extra-curricular activity is happening to
populate the MLT data by how many inserts and lookups occur on the
I'm not the expert here, but perhaps what you're noticing is actually the
OS's disk cache. The actual solr index isn't cached by solr, but as you read
the blocks off disk the OS disk cache probably did cache those blocks for
you. On the 2nd run the index blocks were read out of memory.
There was a
