[reqres]

IIRC, there was also a time when Elasticsearch used multicast by default to detect other ES nodes on the network and to add them to the cluster automatically. So any node joining the same network will join a cluster and have shards allocated to it

[hinkley]

Early J2EE frameworks did that too. Super fun when your dev box clusters with a coworker and undoes your regression testing because half of the tests run on an older version of the code!

[sneakymichael]

It seemingly still does; I'm just getting started with Elasticsearch & your description aligns with what I've read in the introduction guide

[polyfractal]

Just FYI, multicast discovery was moved to a plugin in v2.0 [1], deprecated in v2.2 [2] and removed entirely in v5.0 [3]

- [1] https://www.elastic.co/guide/en/elasticsearch/reference/2.0/...

- [2] https://www.elastic.co/guide/en/elasticsearch/plugins/2.2/di...

- [3] https://www.elastic.co/guide/en/elasticsearch/plugins/5.1/di...