Different static settings on ES cluster nodes

Elastic Stack Elasticsearch
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With documentation on static and dynamic settings (https://www.elastic.co/guide/en/elasticsearch/reference/current/modules.html) , how they can be updated and settings precedence (https://www.elastic.co/guide/en/elasticsearch/reference/5.4/cluster-update-settings.html) following yet remains unclear to me:

  1. what happens if a new node joins ES cluster with a different "discovery.zen.minimum_master_nodes" static setting value specified in elasticsearch.yml file than it was for other nodes that are already in the cluster? Is this setting updated by the latest node cluster wide? Or is it applied for this very new node only and each node may have its own static settings?
  2. is it possible to retrieve current static settings via API?

Please shed more light onto the above concerns.

Thanks,
Roman

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