Also curious why such a large heap is required... If it's due to field caches being loaded I'd highly recommend MMapDirectory (if not using already) and turning on DocValues for all fields you plan to perform sort/facet/analytics on.
steve On Wed, Dec 21, 2016 at 9:25 AM Pushkar Raste <pushkar.ra...@gmail.com> wrote: > You should probably have as small a swap as possible. I still feel long GCs > are either due to swapping or thread contention. > > Did you try to remove all other G1GC tuning parameters except for the > ParallelRefProcEnabled? > > On Dec 19, 2016 1:39 AM, "forest_soup" <tanglin0...@gmail.com> wrote: > > > Sorry for my wrong memory. The swap is 16GB. > > > > > > > > -- > > View this message in context: http://lucene.472066.n3. > > nabble.com/Very-long-young-generation-stop-the-world-GC- > > pause-tp4308911p4310301.html > > Sent from the Solr - User mailing list archive at Nabble.com. > > >
