Define multiple ES coordinator nodes of same cluster in logstash output

Elastic Stack Logstash
1

Hi All,
I need to define multiple ES coordinator nodes of same cluster in logstash output hosts setting. My cluster and logstash are running on 6.2.4. In this context, I would like to clarify following -

  1. Will logstash send data to always first node OR will it load balance between nodes.
  2. Will there be any chance that logstash will send same data to both nodes that may lead to data duplication.

Could someone please clarify my doubts.
Thanks,
Sanjay

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