A very high rate of indexing documents could cause heap usage to go high (all temporary objects getting created are in JVM memory and with very high rate heap utilization may go high)
Having Cache's not sized/set correctly would also return in high JVM usage since as searches are happening, it will keep filling cache's thus JVM. Other factors like sorting/faceting etc. would also require JVM memory and deep paging could even cause JVM to run out of memory/OOM. Thnx On Tue, May 1, 2018 at 6:18 PM, Greenhorn Techie <greenhorntec...@gmail.com> wrote: > Hi, > > Following the https://wiki.apache.org/solr/SolrPerformanceFactors article, > I understand that Garbage Collection might be triggered due to significant > increase in JVM heap usage unless a commit is performed. Given this > background, I am curious to understand the reasons / factors that > contribute to increased heap usage of Solr JVM, which would thus force a > Garbage Collection cycle. > > Especially, what are the factors that contribute to heap usage increase > during indexing time and what factors contribute during search/query time? > > Thanks >