Hi, I have a sharded solr7 cluster and I am using an aggregator node (which has no data/index of its own) to distribute queries and aggregate results from the shards. I am puzzled that when I use solr7 on the aggregator node, then number of threads shoots up to 32000 on that host and then the process reaches its memory limits. However, when i use solr4 on the aggregator, then it all seems to work fine. The peak number of threads during my testing were around 4000 or so. The test load is same in both cases, except that it doesn't finish in case of solr7 (due to the memory / thread issue). The memory settings and Jetty threadpool setting (max=10000) are also consistent in both servers (solr 4 and solr 7).
Has anyone else been in similar circumstances? Thanks Nawab
