Hi, We have recently upgraded solr from version 6.5 to version 8.7. But opposite to our expectations, the response time increased by 40 %.
On solr 8.7 the difference between optimized and unoptimized index is also very huge. 350 ms on optimized and 650 ms on unoptimized. The difference is only 5 GB in size in cores of optimized and unoptimized. The segment count in the optimized index is 1 and 20 in the unoptimized index. I wanted to ask, Is this normal behavior on solr 8.7, or was there some setting that we forgot to add? Pleas also tell us how can we reduce the response time in unoptimzed core. *Specifications* We are using master slave architecture, Polling interval is 3 hours RAM- 96 GB CPU-14 Heap-30 GB Index Size-95 GB Segments size-20 Merge Policy : <mergePolicyFactory class="org.apache.solr.index.TieredMergePolicyFactory"> <int name="maxMergeAtOnce">5</int> <int name="segmentsPerTier">3</int> </ mergePolicyFactory> --
