Hi, Manohar,
1. Does posting-list and term-list of the index reside in the memory? If
not, how to load this to memory. I don't want to load entire data, like using DocumentCache. Either I want to use RAMDirectoryFactory as the data will be lost if you restart
If you use MMapDirectory, Lucene will map the files into memory off heap and the OS's disk cache will cache the files in memory for you. Don't use RAMDirectory, it's not better than MMapDirectory for any use I'm aware of.
> 2. For FilterCache, there is a way to specify whether the filter should be cached or not in the query.
If you add {!cache=false} to your filter query, it will bypass the cache. I'm fairly certain it will not subsequently be cached.
> Similarly, Is there a way where I can specify the list of stored fields to be loaded to Document Cache?
If you have lazy loading enabled, the DocumentCache will only have the fields you asked for in it.
> 3. Similarly, Is there a way I can specify list of fields to be cached for FieldCache? Thanks, Manohar
You basically don't have much control over the FieldCache in Solr other than warming it with queries.
You should check out this wiki page, it will probably answer some questions: https://wiki.apache.org/solr/SolrCaching I hope that helps! Michael
