: It looks like this is a good starting point: : : http://wiki.apache.org/solr/SolrConfigXml#codecFactory
The default "SchemaCodecFactory" already supports defining a diff posting format per fieldType - but there isn't much in solr to let you "tweak" individual options on specific posting formats via configuration. So what you'd need to do is write a small subclass of Lucene41PostingsFormat that called "super(yourMin, yourMax)" in it's constructor. : On 01/12/2015 03:37 PM, Tom Burton-West wrote: : > Hello all, : > : > Our indexes have around 3 billion unique terms, so for Solr 3, we set : > TermIndexInterval to about 8 times the default. The net effect of this is : > to reduce the size of the in-memory index by about 1/8th. (For background : > see for : > http://www.hathitrust.org/blogs/large-scale-search/too-many-words-again, ) : > : > We would like to do something similar for Solr4. T : > : > he Lucene 4.10.2 JavaDoc for setTermIndexInterval suggests how this can be : > done by setting the minimum and maximum size for a block in Lucene code ( : > http://lucene.apache.org/core/4_10_2/core/org/apache/lucene/index/IndexWriterConfig.html#setTermIndexInterval%28int%29 : > ) : > "For example, Lucene41PostingsFormat : > <http://lucene.apache.org/core/4_10_2/core/org/apache/lucene/codecs/lucene41/Lucene41PostingsFormat.html> : > implements the term index instead based upon how terms share prefixes. To : > configure its parameters (the minimum and maximum size for a block), you : > would instead use Lucene41PostingsFormat.Lucene41PostingsFormat(int, int) : > <http://lucene.apache.org/core/4_10_2/core/org/apache/lucene/codecs/lucene41/Lucene41PostingsFormat.html#Lucene41PostingsFormat%28int,%20int%29>. : > which can also be configured on a per-field basis" : > : > How can we configure Solr to use different (i.e. non-default) mimum and : > maximum block sizes? : > : > Tom : > : : -Hoss http://www.lucidworks.com/
