It is time to say goodbye: This version of Elastic Cloud Enterprise has reached end-of-life (EOL) and is no longer supported.
The documentation for this version is no longer being maintained. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
ElasticsearchMasterElement
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More detailed information about which instances are port the cluster (or sub-clusters in the case of split brain)