一直困擾于 indexSearcher 的重新 new ,query filter 的cache 沒了。

重讀solr ，發現非常好。也許我應該考慮用 solr 了。


Caching

  • Configurable Query Result, Filter, and Document cache instances
  • Pluggable Cache implementations
  • Cache warming in background
    • When a new searcher is opened, configurable searches are run against it in order to warm it up to avoid slow first hits. During warming, the current searcher handles live requests.
  • Autowarming in background
    • The most recently accessed items in the caches of the current searcher are re-populated in the new searcher, enabing high cache hit rates across index/searcher changes.
  • Fast/small filter implementation
  • User level caching with autowarming support
9-26
  今天，我發現，我可以用不同的方式實現cache ，也許在我的情況下比solr 的方式更好。


西津渡