In the documentation: http://www.elasticsearch.org/guide/reference/api/admin-indices-aliases/ It says: The get index alias api (Available since 0.90.1) allows to filter by alias name and index name. This api redirects to the master and fetches the requested index aliases, if available. This api…

GET /_all/_aliases always redirects to the master

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GET /_all/_aliases always redirects to the master