Dear all, I have created an index with aprox. 1.1 billion of documents (around 500GB) running on Solr 1.4.1. (64 bit JVM).
I want to enable faceted navigation on am int field, which contains around 250 unique values. According to the wiki there are two methods: facet.method=fc which uses field cache. This method should use MaxDoc*4 bytes of memory which is around: 4.1GB. facet.method=enum which crated a bitset for each unique value. This method should use NumberOfUniqueValues * SizeOfBitSet which is around 32GB. Are my calculations correct? My memory settings in Tomcat (windows) are: Initial memory pool: 4096 MB Maximum memory pool: 8192 MB (total 12GB in my test machine) I have tried to run a query (...&facet=true&facet.field=PublisherId&facet.method=fc) but I am still getting OOM: HTTP Status 500 - Java heap space java.lang.OutOfMemoryError: Java heap space at org.apache.lucene.search.FieldCacheImpl$StringIndexCache.createValue(FieldCacheImpl.java:703) at org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:224) at org.apache.lucene.search.FieldCacheImpl.getStringIndex(FieldCacheImpl.java:692) at org.apache.solr.request.SimpleFacets.getFieldCacheCounts(SimpleFacets.java:350) at org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:255) at org.apache.solr.request.SimpleFacets.getFacetFieldCounts(SimpleFacets.java:283) at org.apache.solr.request.SimpleFacets.getFacetCounts(SimpleFacets.java:166) at org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:72) at ... Any idea what am I doing wrong, or have I miscalculated the memory requirements? Many thanks, Rok
