Elasticsearch 2.X with heap bigger then 32 GB

We use Elasticsearch 2.4 with Java 8 + Grafana 3.11 for dashboards used in average by ~500 users, in peaks 1000+ users. And we have (2018/2) ~2,5G documents with total size ~460GB. I do not know if those are big numbers or not. (Old versions are used due to...

Elasticsearch 2.X – notes to tunning

still in //TODO Useful links: A Useful Elasticsearch Cheat Sheet in Times of Trouble How to check current size of the ealastisearch queues defined in threadpool.XXX.queue_size? Troubleshooting see stats on all nodes: curl -XGET localhost:9200/_nodes/stats?pretty|less...