Hi,I have a SOLR installation in master-slave configuration. The slave is used only for reads and master for writes. I wanted to know if there is anything I can do to improve the performance of the readonly Slave instance? I am running SOLR 8.5 and Java 14. The JVM has 24GB of ram allocated. Server has 256 GB of RAM with about 50gb free (rest being used by other services on the server)The index is 15gb in size with about 2 million documents. We do a lot of queries where documents are fetched using filter queries and a few times all 2 million documents are read.My initial idea to speed up SOLR is that given the amount of memory available, SOLR should be able to keep the entire index on the heap (I know OS will also cache the disk blocks) My solrconfig has the following: <query> <maxBooleanClauses>200000</maxBooleanClauses> <filterCache class="solr.FastLRUCache" size="512" initialSize="512" autowarmCount="0" /> <queryResultCache class="solr.LRUCache" size="512" initialSize="512" autowarmCount="0" /> <documentCache class="solr.LRUCache" size="8192" initialSize="8192" autowarmCount="0" /> <cache name="perSegFilter" class="solr.search.LRUCache" size="10" initialSize="0" autowarmCount="10" regenerator="solr.NoOpRegenerator" /> <enableLazyFieldLoading>true</enableLazyFieldLoading> <queryResultWindowSize>20</queryResultWindowSize> <queryResultMaxDocsCached>200</queryResultMaxDocsCached> <useColdSearcher>false</useColdSearcher> <maxWarmingSearchers>2</maxWarmingSearchers> </query> I have modified the documentCache size to 8192 from 512 but it has not helped much. I know this question has probably been asked a few times and I have read everything I could find out about SOLR cache tuning. I am looking for some more ideas.
Any ideas? Tarun Jain-=-
