Apologies, 290gb was a typo on my end, it should read 29gb instead. I started with my 5.5 configurations of limiting the RAM to 15gb. But it started going down once it reached the 15gb ceiling. I tried bumping it up to 29gb since memory seemed to stabilize at 22gb after running for few hours, of course, it didn't help eventually. I did try the G1 collector. Though garbage collection was happening more efficiently compared to CMS, it brought the nodes down after a while.
The part I'm trying to understand is whether the memory footprint is higher for 6.6 and whether I need an instance with higher ram (>30gb in my case). I haven't added any post 5.5 feature to rule out the possibility of a memory leak. -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html