OpenSearch/server
David Turner 9f86e996fe
[Zen2] Support rolling upgrades from Zen1 (#35737)
We support rolling upgrades from Zen1 by keeping the master as a Zen1 node
until there are no more Zen1 nodes in the cluster, using the following
principles:

- Zen1 nodes will never vote for Zen2 nodes
- Zen2 nodes will, while not bootstrapped, vote for Zen1 nodes
- Zen2 nodes that were previously part of a mixed cluster will automatically
  (and unsafely) bootstrap themselves when the last Zen1 node leaves.
2018-12-08 07:33:35 +00:00
..
licenses Upgrade to Lucene-8.0.0-snapshot-aaa64d70159 (#36335) 2018-12-06 20:33:25 -05:00
src [Zen2] Support rolling upgrades from Zen1 (#35737) 2018-12-08 07:33:35 +00:00
build.gradle Build: Use explicit deps on test tasks for check (#36325) 2018-12-06 14:13:49 -08:00