Please suggest performance settings for my ElasticSearch cluster

Elastic Stack Elasticsearch
21

Hi all! As Mark suggested I have done the changes:

  1. This is my new configuration

     cluster.name: xxxx_search
 node.name: xxxx-master-1
 node.data: true
 node.master: true

 bootstrap.mlockall: true
 index.cache.query.enable: true
 transport.tcp.compress: true;

 network.bind_host: xxx.xxx.xxx.xxx
 network.publish_host: xxx.xxx.xxx.xxx
 network.host: xxx.xxx.xxx.xxx
 discovery.zen.ping.unicast.hosts: ["xxx.xxx.xxx.xxx"]
 discovery.zen.ping.multicast.enabled: false
 discovery.zen.ping.timeout: 10s
 transport.tcp.port: 9300
 http.port: 9200
 http.max_content_length: 500mb

 index.search.slowlog.threshold.query.warn: 10s
 index.search.slowlog.threshold.query.info: 5s
 index.search.slowlog.threshold.query.debug: 2s
 index.search.slowlog.threshold.query.trace: 500ms

 script.engine.groovy.inline.aggs: on
 script.inline: on
 script.indexed: on
 index.max_result_window: 10000

  2. I have set 2 shards on each index insteat of 8 .

Here is now the graph of the JVM HEAP

[Album] Imgur: The magic of the Internet

Is it ok it this way? What do you think?

I will write you tomorrow, when there are 12 hours uptime.

Thanks for the suggestions from all of you! If there is someone with more suggestions, please write I can test it asap!

Cheers
Nik