Hi, Trying to solve query performance issue, we suspect on the number of index segments, which might slow the query (due to I/O seeks, happens for each term in the query, multiplied by number of segments). We are on Solr 4.3 (TieredMergePolicy with mergeFactor of 4).
We can reduce the number of segments by enlarging maxMergedSegmentMB, from the default 5GB to something bigger (10GB, 15GB?). What are the side effects, which should be considered when doing it? Did anyone changed this setting in PROD for a while?