David Turner 41bc878738 Clarify rolling-upgrade docs (#47279)
Note to upgrade the master-eligible nodes last, and note that
`cluster.initial_master_nodes` should not be set.
2019-09-30 17:02:58 +01:00
..
2019-09-30 11:58:34 +02:00
2019-09-27 09:20:08 +01:00