Greetings,
I'm looking for pointers on where to start when creating a
custom QueryCache.
Our usage patterns are possibly a bit unique, so let me explain the desired
use case:
Our Solr index is read-only except for dedicated periods where it is
updated and re-optimized.
On startup, I would like to create a specific QueryCache that would cache
the top ~20,000 (arbitrary but large) queries. This cache should never
evict entries, and, after the "warming process" to populate, should never
be added to either.
The warming process would be to run through the (externally determined)
list of anticipated top X (say 20,000) queries and cache these results.
This cache would then be used for the duration of the solr run-time (until
the period, perhaps daily, where the index is updated and re-optimized, at
which point the cache would be re-created)
Where should I begin looking to implement such a cache?
The reason for this somewhat different approach to caching is that we may
get any number of odd queries throughout the day for which performance
isn't important, and we don't want any of these being added to the cache or
evicting other entries from the cache. We need to ensure high performance
for this pre-determined list of queries only (while still handling other
arbitrary queries, if not as quickly)
Thanks,
Aaron
