The default is 2.0, and higher values will more strongly favor merging segments with deletes.
I think 20.0 is likely way too high ... maybe try 3-5? Mike McCandless http://blog.mikemccandless.com On Tue, Jun 18, 2013 at 6:46 PM, Petersen, Robert <robert.peter...@mail.rakuten.com> wrote: > Hi > > In continuing a previous conversation, I am attempting to not have to do > optimizes on our continuously updated index in solr3.6.1 and I came across > the mention of the reclaimDeletesWeight setting in this blog: > http://blog.mikemccandless.com/2011/02/visualizing-lucenes-segment-merges.html > > We do a *lot* of deletes in our index so I want to make the merges be more > aggressive on reclaiming deletes, but I am having trouble finding much out > about this setting. Does anyone have experience with this setting? Would > the below accomplish what I want ie for it to go after deletes more > aggressively than normal? I got the impression 10.0 was the default from > looking at this code but I could be wrong: > https://builds.apache.org/job/Lucene-Solr-Clover-trunk/lastSuccessfulBuild/clover-report/org/apache/lucene/index/TieredMergePolicy.html?id=3085 > > <mergePolicy class="org.apache.lucene.index.TieredMergePolicy"> > <int name="maxMergeAtOnce">20</int> > <int name="segmentsPerTier">8</int> > <double name="reclaimDeletesWeight">20.0</double> > </mergePolicy> > > Thanks > > Robert (Robi) Petersen > Senior Software Engineer > Search Department >
