Why? What is the problem you're facing that you hope understanding more about these will help?
Here are two places to start: http://blog.mikemccandless.com/2011/02/visualizing-lucenes-segment-merges.html https://lucidworks.com/blog/2013/08/23/understanding-transaction-logs-softcommit-and-commit-in-sorlcloud/ In general every time you do a hard commit the Lucene index is checked to see if there are segments that should be merged. If so, then a background thread is kicked off to start merging selected segments. Which segments is decided by the MergePolicy in effect (TieredMergePolicy is the default). Best, Erick On Tue, Aug 16, 2016 at 10:47 AM, kshitij tyagi <kshitij.shopcl...@gmail.com> wrote: > I need to understand clearly that is there any relationship between solr > merging and solr commit? > > If there is then what is it? > > Also i need to understand how both of these affect indexing speed on the > core?
