Cluster node roles changed after rolling upgrade


We did a rolling upgrade from version 7.6.1 to 7.12.1 as documented in Rolling upgrades | Elasticsearch Guide [7.12] | Elastic. We have three nodes in our cluster. Before the upgrade each node had roles dilm, but afterwards they are all cdfhilmrstw:

curl 'http://localhost:9200/_cat/nodes?v&h=node.role,master,name&s=name'
node.role   master name
cdfhilmrstw -      es-dev-node0
cdfhilmrstw *      es-dev-node1
cdfhilmrstw -      es-dev-node2

Why did they change? And what are the implications?



Roles of the node. Returned values include c (cold node), d (data node), f (frozen node), h (hot node), i (ingest node), l (machine learning node), m (master-eligible node), r (remote cluster client node), s (content node), t (transform node), v (voting-only node), w (warm node), and - (coordinating node only).

There's no change as such, it's just further clarification and separation of the existing roles.

1 Like

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.