solr 之 缓存

1. fq + filterCache配合使用在13万条数据里面搜索，结果为4-5s，而不适用filterCache或者不使用fq（仅仅使用q），那么查询时间在9-10s左右！！

http://172.16.132.159:6602/sse/vod_media/select?sort=modified_time+desc&start=100&q=(category_name:*%E5%A8%B1%E4%B9%90*+OR+category_name:*%E7%BB%BC%E8%89%BA*)&wt=json&fq=media_deleted:0+AND+media_available:1+AND+media_online:1+AND+video_deleted:0+AND+video_available:1+AND+video_online:1+AND+asset_deleted:0+AND+asset_available:1+AND+asset_online:1&rows=50

<filterCache class="solr.FastLRUCache"
468 size="200"
469 initialSize="20"
470 autowarmCount="2000"/>