: I'm having trouble getting Solr to use more than one thread during index : optimizations. I have the following in my solrconfig.xml: : <mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler"> : <int name="maxThreadCount">6</int> : </mergeScheduler>
How many segments do you have? I'm not an expert on segment merging, but i'm pretty sure the number of threads it will use is limited based on the number of segments -- so even though you say "use up to 8" it only uses one if that's all htat it can use. -Hoss
