On 10/29/2013 10:44 AM, eShard wrote:
Offhand, how do I control how much of the index is held in RAM? Can you point me in the right direction?
This is automatically handled by the operating system. For quite some time, Solr (Lucene) has by default used the MMap functionality provided by all modern operating systems to access the index files. The OS transparently handles caching with any available RAM, no configuration or limits required. If the memory is needed for other purposes, the OS gives it up and the cache gets smaller.
http://blog.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html Thanks, Shawn