Caches are only valid as long as the Index Searcher is valid. So, if you make a commit with opening a new searcher then caches will be invalidated. However, in this scenario you can configure your caches so that the new searcher will keep a certain number of cache entries from the previous one (autowarmCount). That's the only cache "persistence" Solr can offer. On restarting/crash you can't reuse caches.
Why do you need to persist caches in case of a crash? What's your usage scenario? Do you have problems with performance after startup? You can read more at http://wiki.apache.org/solr/SolrCaching#Overview ----- Thanks, Michael -- View this message in context: http://lucene.472066.n3.nabble.com/Persist-solr-cache-tp4103463p4103469.html Sent from the Solr - User mailing list archive at Nabble.com.