Say I have three logstash servers loadbalanced behind and F5. All three servers are identical, and contain an elasticsearch output plugin with a host array of something like: hosts => ["host1","host2",host3"].
How is the output load balanced? Round Robin, least used, etc? What I'm trying to figure out is, if the three logstash servers would get in a rhythm of rotating through the same hosts at the same time, thus swamping one, while the others go unused.